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Chemical process control or monitoring system

Subclass of:

700 - Data processing: generic control systems or specific applications

700090000 - SPECIFIC APPLICATION, APPARATUS OR PROCESS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
700271000 Refinement or purification or rejuvenation 28
700274000 Control of combustion or heating apparatus (e.g., kiln, furnace, autoclave, burner, combusion system) 20
700268000 Synthesis process 17
700267000 Titration or pH level 6
700270000 Distillation 3
20100036529Abnormal event detection using principal component analysis - A process control system and a method for detecting abnormal events in a process, the process comprising one or more independent and one or more dependent variables a means for measuring values of the dependent and independent variables, and a multivariable predictive control means capable of calculating predicted values of the one or more dependent variables from the measured values of the one or more independent variables using a predictive model, which method comprises performing principal components analysis on the residual values of the one or more dependent variables, the residual values being calculated from the difference between the predicted and measured dependent variable values.02-11-2010
20110224829Distillation column control - A method for protecting a thermal distillation column system from liquid over fill wherein instrument calibration and level signal aberrations are dynamically corrected, instrument measurement errors and measurement drifts over time are accounted for, and a decay factor component is employed to obviate the need for maintenance or periodic instrument.09-15-2011
20130173061Extractive Distillation Controls - The invention concerns an improvement in the monitoring and control systems used in a liquid-liquid extraction unit or an extractive distillation unit for the separation of aromatic hydrocarbons from non-aromatic hydrocarbons.07-04-2013
700273000 Separation process 2
20080255705Flow Cytometer Sorter - Disclosed are computer-implemented methods of sorting particles from a particle stream in a flow cytometer. The methods include: calculating sort decision making parameters using the raw event data values from a flow cytometer and a sort logic; performing sort logic computations using the sort logic definition and the sort decision making parameters to generate sort decisions; converting the sort decisions into sort commands; and sending the one or more sort commands to the flow cytometer. Sort logic computations may include algorithmically using conditional branching logic, and may include sort logic equations having mathematical functions characterizing one or more regions of interest in multidimensional data space. Such mathematical functions may be determined based on one or more parameters provided by a user. Also disclosed are corresponding systems having a flow cytometer and a computer.10-16-2008
20120209434METHOD FOR OPERATING DIFFERENTIAL PRESSURE WATER ELECTROLYSIS APPARATUS - A method for operating a differential pressure water electrolysis apparatus includes calculating in advance values of an electric current required for an electrolysis of water in response to pressures of a cathode-side electrolysis chamber, detecting a pressure of the cathode-side electrolysis chamber when the electrolysis of water is not carried out, determining whether or not the electrolysis of water is to be started, and starting the electrolysis of water with an electric current having a value equal to or higher than a value which is calculated in advance in the calculating of the values of the electric current and which corresponds to a detected pressure of the cathode-side electrolysis chamber when it is determined that the electrolysis of water is to be started.08-16-2012
Entries
DocumentTitleDate
20110196537DISTRIBUTION CONTROL METHOD EQUIPPED WITH CHEMICAL VALVE BOXES - A distribution control method equipped with chemical valve boxes comprises providing a microcomputer parameter control system, at least one intelligent chemical valve box distribution system and a plurality of chemical supply systems. The microcomputer parameter control system is linked to the intelligent chemical valve box distribution system and the chemical supply systems via a wireless or wired connection means. The intelligent chemical valve box distribution system is linked to the chemical supply systems. The chemical supply systems supply medicinal liquids to a targeted machine through a chemical piping, a branch box and a chemical valve box. The microcomputer parameter control system sets related control parameters and uploads the control parameters to the intelligent chemical valve box distribution system or downloads the control parameters of the intelligent chemical valve box distribution system and performs editing, thus can save the control cost of the chemical supply systems.08-11-2011
20120191248Fast-Error/Fast-Exception Handling Scheduler - A method of scheduling an operation and a method of salvaging a launched test on a sample analyzer having a plurality of system resources for which there is a discrete, redundant subsystem Methods include scheduling real-time actions for execution on the subsystem or its redundant subsystem, linking the subsystem or a first redundant subsystem to another subsystem or to a second redundant subsystem, commanding the subsystem or the redundant subsystem to execute the actions for execution, executing each of the actions, monitoring execution of the actions, and re-scheduling an action for execution on a first subsystem on a corresponding discrete, redundant subsystem when an error or malfunction has occurred that may impact the launched test If re-scheduling is not possible, then the method includes trying to pause the launched test When pausing fails, the method includes marking the test bad an removing the test with minimal interference.07-26-2012
20130060384METHOD AND SYSTEM FOR OPTIMIZING MEMBRANE CLEANING PROCESS - A reverse osmosis separation process is disclosed, such as for desalination and waste water reuse process, wherein an effectiveness of membrane cleaning can be estimated. Exemplary embodiments operate the reverse osmosis membrane cleaning process for a controlled time for cleaning and with a controlled value of chemical concentration in a chemical liquor prepared for cleaning the membrane. A method can include estimating fouling status of the membrane and determining a controlled value of chemical concentration in the chemical liquor, and a controlled time for cleaning based on the fouling status of the membrane.03-07-2013
20090326715Method for Biofuel Life Cycle Assessment - A method for calculating the greenhouse gas (GHG) emissions, energy efficiency, and natural resource requirements of a biofuel production system, using a life cycle assessment of biofuel production from the creation of material inputs to finished products, and producing a GHG emissions inventory from fossil fuels and a few key non-fossil fuel GHG emissions in the production life cycle.12-31-2009
20110301761CONTROL SYSTEMS AND METHODS FOR CONTROLLING A DRY FEED SYSTEM TO CONVEY A SOLID FUEL - A control system for controlling a dry feed system to convey a solid fuel includes multiple sensors, a pressurizing gas controller, at least one assistant gas controller and multiple gas valves. The sensors generate multiple measurement signals signifying characteristics of the dry feed system. The pressuring gas controller calculates a feed tank pressure bias or/and a pressuring gas flow bias based on a solid flow rate and generates a first control signal based on the pressure bias or/and the pressurizing gas flow bias. The assistant gas controller calculates an assistant gas bias based on a solid loading ratio and generates a second control signal based on the assistant gas bias. The gas valves are driven by the first or/and second control signals to regulate the solid fuel. A control method is also described.12-08-2011
20120065782INTEGRATED BIO-REACTOR MONITOR AND CONTROL SYSTEM - Systems and methods for automatically controlling conditions of a process are disclosed. In one example, a controller is programmed with a sequence of steps and parameters required to carry out a bioreactor process. A sensor system interacts with the bioreactor to receive information related to a condition of the bioreactor and/or receive a sample from the bioreactor, which it analyzes. The sensor system sends data signals related to the information and/or the sample to a controller, which determines a control signal based on the received information. The controller sends the control signal to the sensor system which, based on the control signal, performs an action that affects a condition of the bioreactor or affects the sensor system itself.03-15-2012
20090149996MULTIPLE INLET ABATEMENT SYSTEM - A method of operating an electronic device manufacturing thermal abatement system is provided, including: flowing a gaseous effluent through an inlet into a thermal abatement reaction chamber; abating the effluent; flowing the abated effluent through an outlet out of the thermal abatement reaction chamber; using a pressure sensor to measure an inlet pressure; using the same pressure sensor to measure an outlet pressure; wherein the pressure sensor sequentially measures the inlet pressure and the outlet pressure; determining the difference between the inlet pressure and the outlet pressure; and if the difference between the inlet pressure and the outlet pressure exceeds a pre-determined pressure, diverting the flow of effluent away from the inlet. Numerous other aspects are provided.06-11-2009
20110172826Device including altered microorganisms, and methods and systems of use - Devices, methods, and systems are described for administration to at least one biological tissue of at least one device including at least one altered microorganism. In an embodiment, the altered microorganism includes at least one nucleic acid construct encoding at least one therapeutic agent.07-14-2011
20080281471Droplet Actuator Analyzer with Cartridge - A droplet actuator with cartridge is provided. According to one embodiment, a sample analyzer is provided and includes an analyzer unit comprising electronic or optical receiving means, a cartridge comprising self-contained droplet handling capabilities, and a wherein the cartridge is coupled to the analyzer unit by a means which aligns electronic and/or optical outputs from the cartridge with electronic or optical receiving means on the analyzer unit. According to another embodiment, a sample analyzer is provided and includes a sample analyzer comprising a cartridge coupled thereto and a means of electrical interface and/or optical interface between the cartridge and the analyzer, whereby electrical signals and/or optical signals may be transmitted from the cartridge to the analyzer.11-13-2008
20080234867Customer-Created Textiles and Method of Producing Same - Customers obtain customized textile materials by selecting style, shape, size, pattern and color for an undyed textile product. Based on a selection made by the customer, the textile product is transformed by a dyeing operation performed on a single item to yield a product, such as a shirt, pants, or jacket, which has a color and pattern of his or her own choosing, in the size and style he or she desires. The process can be performed in a retail setting using a dye machine which allows the process to be viewed by the customer. Preferably, the textile material is constructed from yarns which include cationic cotton alone or in combination with natural cotton or other natural or synthetic fibers, and using anionic dyes, such as a fiber reactive dye, such that the dye is exhausted during the process and effluent from the dye machine is environmentally friendly without excess dye, salts, and alkalis.09-25-2008
20120173022CONTROL APPARATUS OF AMMONIA LOADING AMOUNT FOR SCR SYSTEM AND CONTROL METHOD FOR THE SAME - A control method of ammonia loading amount for SCR system controls ammonia loading amount according to temperature difference along length direction of a SCR catalyst. The control method includes receiving data from sensors disposed forward and rearward of a SCR catalyst, and dividing SCR catalyst into a plurality of blocks according to temperatures of an inlet and outlet of the SCR catalyst, wherein the blocks have each temperature ranges, calculating required ammonia amount of each block of the SCR catalyst, calculating total required ammonia amount of the SCR catalyst by adding required ammonia amount of each block of the SCR catalyst and controlling the ammonia loading amount for SCR system.07-05-2012
20090319084Method and means for tracking corrosion-related plant operation costs - A method of controlling corrosion-related plant operation costs is provided, the method including: accumulating real-time corrosion measurements relating to a plant operation; calculating a relative degree of corrosion value that includes consideration of the real-time corrosion measurements; comparing the relative degree of corrosion value to an expected corrosion progression value associated with a predetermined target maintenance cycle; and adjusting a plant operation based on a comparison of the relative degree of corrosion value to the expected corrosion progression value associated with a predetermined target maintenance cycle. A means for controlling corrosion-related plant operation costs is also provided, the means including: means for accumulating real-time corrosion measurements relating to a plant operation; means for calculating a relative degree of corrosion value that includes consideration of the real-time corrosion measurements; means for comparing the relative degree of corrosion value to an expected corrosion progression value associated with a predetermined target maintenance cycle; and means for adjusting a plant operation based on a comparison of the relative degree of corrosion value to the expected corrosion progression value associated with a predetermined target maintenance cycle.12-24-2009
20090112363Adaptive control system for reagent distribution control in SCR reactors - A method for controlling dosage of a reagent in a selective catalytic reduction (SCR) system includes the step of providing the system with a plurality of reagent injection nozzles, each nozzle being configured and adapted to be independently calibrated during an SCR reaction when the system is in operation. The method further includes determining an influence coefficient for each injection nozzle for a catalyst independently of the other injection nozzles, and optimizing the flow of reagent from each injection nozzle to minimize a sum of deviation across a surface of the catalyst. A system performs selective catalytic reduction (SCR) and a machine readable medium contains program instructions to controlling dosage of a reagent in a selective catalytic reduction (SCR) system.04-30-2009
20110213499Methods, Systems, and Products for Conducting Droplet Operations - The present invention provides modified droplet actuator systems, software, and software-executed methods for use in droplet actuator operation and droplet actuator systems that are configured and programmed to execute such software. An aspect of the software components of the invention is an interface description file for each hardware component of a microfluidics system that allows hardware components to be changed without modifying the program for performing droplet operations protocols. Another aspect of the software components of the invention is the establishment of electrode-to-electrode relationships and other aspects of droplet actuator configurations, which may be used when programming droplet operations protocols. Another aspect of the software components of the invention is a physical design library of predefined electrode elements that may be used by a droplet actuator designer when constructing a layout of electrodes. Another aspect of the software components of the invention is a droplet actuator description file that contains the physical and electrical description of the droplet actuator. Another aspect of the software components of the invention is a router component for determining routes of droplet operations in a droplet actuator. Another aspect of the software components of the invention is the use of tri-state vectors for programming sequences in a droplet actuator. Still other aspects are provided.09-01-2011
20110060463Virtual transmitter for bioreactor automation system - A bioreactor monitoring and/or control system utilizing only non-dedicated user input and information display devices, a digital controller and software, said system comprising:03-10-2011
20100004785CONTROL DEVICE AND CONTROL METHOD OF PLASMA PROCESSING SYSTEM, AND STORAGE MEDIUM STORING CONTROL PROGRAM - In a control device of a plasma processing system, a communication unit is configured to receive processing information related to a carrier of a next processing lot. A determination unit is configured to determine whether the processing information received by the communication unit has pre-treatment information related to one of the plasma processing devices. When it is determined that the processing information has the pre-treatment information by the determination unit, a generation unit is configured to generate an object for declaring execution of the pre-treatment for the carrier of a next processing lot if a desired condition of transferring of the carrier is satisfied. In addition, if the object is generated by the generation unit, a process executing control unit is configured to start the pre-treatment for the target object in the carrier of a next processing lot without any notification that the carrier reaches a destination plasma processing device.01-07-2010
20090112364Chemical treatment system and method - A chemical treatment system that injects a dosage chemical solution into a process. A condition of the process is sensed by a sensor, communicated to a controller and used as a basis for varying in real time the dosage of the chemical solution. The sensor, the controller, a pump and the process are disposed in a closed control loop. The controller controls the operation of the pump (speed, duty cycle and the like) to vary the dosage based on the sensed condition, which is disclosed as a corrosion and/or scale of an element of the process, although other conditions can control the dosage as well.04-30-2009
20100121490BASE SEQUENCE DETECTION APPARATUS AND BASE SEQUENCE AUTOMATIC ANALYZING APPARATUS - A base sequence detection apparatus is provided with a channel formed on a base sequence detection chip. Working electrodes are formed along the channel and include a probe immobilized thereon, counter electrodes are formed on the inner surface of the channel and, reference electrodes are formed on the inner surface of the channel. An introduction port introduces solution or air from the upstream side of the channel, a delivery port delivers the solution or air in the channel, and the sample is injected into the channel through a sample injection port.05-13-2010
20100161132SYSTEM AND METHOD FOR MONITORING AN INDUSTRIAL PRODUCTION PROCESS - A system for monitoring an industrial production process includes one or more sensors configured to facilitate generating process data and a processor configured to calculate a value of a monitoring variable using the process data. The monitoring variable is optimized with respect to an abnormal space of a process space. The process space includes process parameters and principle components of a multivariate model of the process. The abnormal space includes a subspace of the process space.06-24-2010
20120310413Simulated Fermentation Process - A method of modeling a fermentation process comprises providing a first principles model of a fermentation process; determining the concentration of at least one substrate in a fermentation composition at a first time; and predicting the concentration of at least one component of the fermentation composition at a second time using the first principles model, wherein the second time is after the first time.12-06-2012
20120046790NETWORKED CHEMICAL DISPERSION SYSTEM - The illustrative embodiments provide a chemical dispersion system comprising a number of chemical dispersion nodes, a chemical dispersion manager, and a processor unit. The processor unit executes the chemical dispersion manager to identify a pest problem and generate a chemical dispersion plan for execution by the number of chemical dispersion nodes.02-23-2012
20120010750DEVICE AND METHOD FOR TESTING THE CLEANING EFFECT OF A CLEANING APPARATUS - The invention comprises a device for testing the cleaning effect of a cleaning apparatus, said cleaning apparatus being part of a container treatment plant, said device comprising a unit for introducing and/or applying a predetermined amount of contamination in and/or to a test container, and a unit for introducing the test container in the container treatment plant.01-12-2012
20120022692PREDICTION AND CONTROL SOLUTION FOR POLYMERIZATION REACTOR OPERATION - Techniques and systems for the prevention of reactor fouls in polymerization reactors are described. Described embodiments include techniques and systems for performing analyses on reactor data collected over time for the detection of incipient reactor fouling. Techniques are provided for monitoring the state of the reactor as well as for monitoring individual system parameters, including rates of change, for predicting the onset of a reactor foul. In particular, the techniques may be implemented such that predictive proactive control systems may be integrated into polymerization reactor systems to prevent reactor fouling.01-26-2012
20120072028INTEGRATED BIO-REACTOR MONITOR AND CONTROL SYSTEM - Systems and methods for automatically controlling conditions of a process are disclosed. In one example, a controller is programmed with a sequence of steps and parameters required to carry out a bioreactor process. The controller receives information related to a condition of the process over a first communication network, determines a control signal based on the received information and the programmed process, and sends the control signal over a second communication network to a benchtop utility tower. In one example, the utility tower can include transmitters for temperature, pH, and dissolved oxygen that send information related to a condition of the process to the controller over the first communication network, and an agitation system, a gas control system, a temperature control system and a pump control system that perform a control action based on the control signal affecting the process condition. The utility tower can include a computer with a human-machine interface that communicates with the controller over a third communication network.03-22-2012
20110066285Thermodynamic Phase Equilibrium Analysis Based on a Reduced Composition Domain - A method of modeling phase characteristics of thermodynamic systems utilizing pseudo-properties strategy and a reduced number of variables is disclosed herein. The method describes a means of determining the probability of phase splitting of mixtures of materials at a given temperature, pressure, and composition by characterizing the functions that describe the system via pseudo-properties, and also by describing the system in n−1 or fewer variables, where n represents the number of components in the system of interest. In an embodiment, a multi-component system is characterized in one variable, thereby providing simplified thermodynamic models in a time-efficient manner. In addition, the information generated by this reduced-variable calculation can further be used as a starting point for calculations of equations of state.03-17-2011
20090030553METHOD AND DEVICE FOR CREATING AND ANALYZING AN AT TEMERATURE AND PRESSURE OXIDATION-REDUCTION POTENTIAL SIGNATURE IN HOT WATER SYSTEMS FOR PREVENTING CORROSION - Disclosed is a method of creating a real-time oxidation-reduction potential signature in a hot water system to detect REDOX stress and inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which analyzes and interprets the transmitted potential to create an oxidation-reduction potential signature for the hot water system. If the signature does not conform to an oxidation-reduction potential setting, the controller is operable to feed one or more active chemical species into the hot water system.01-29-2009
20090005908MULTIVARIABLE PROCESS CONTROLLER AND METHODOLOGY FOR CONTROLLING CATALYZED CHEMICAL REACTION TO FORM PHTHALIC ANHYDRIDE AND OTHER FUNCTIONALIZED AROMATICS - A multivariable method and process controller is for controlling a catalyzed chemical reaction to form phthalic anhydride (PA), produced by a production unit including a chemical reactor having a plurality of pipes connected in parallel having inner surfaces affixed with at least one solid catalyst. The reactor implements a process for forming PA by receiving flows of reagents including at least one oxidizable substituted aromatic and an oxygen including source gas at one or more inlets of the reactor. A dynamic multivariable model for the process represents the effects of moving a plurality of manipulated variables (MVs) including a flow of the oxygen including source gas and a flow or temperature of the oxidizable substituted aromatic on controlled variables (CVs) including a temperature at a plurality of positions along a length of the pipes. During the process, a first parameter related to performance of the catalyst in producing PA and a second parameter including a temperature at one or more of the plurality of positions in measured. Using the dynamic model, the temperature in the plurality of positions along the length of the reactor are automatically adjusting based on at least the first measured parameter, which permits the temperature profile to be adjusted to compensate for ageing of the catalyst to improve production efficiency.01-01-2009
20120101634CROP TREATMENT COMPATIBILITY - In a method of ensuring crop treatment compatibility crop treatment information is received at a computer system. The crop treatment information comprises a real-time location of a crop treatment applicator and a description of a crop treatment resident in the crop treatment applicator. Planted crop treatment information is accessed for a planted field which encompasses the real-time location. The planted crop information comprises a description of a planted crop in the planted field. It is determined whether the crop treatment is compatible with application to the planted crop. In response to determining the crop treatment is not compatible with application to the planted crop, a crop treatment incompatibility action is initiated in real-time from the computer system.04-26-2012
20130090765Facilites Manifold with Proximity Sensor - A high productivity combinatorial system can be configured with sensors to automatically sense an identification tag of an installed reactor assembly, which comprises corresponding sensing elements. Configuration and usage data of the install reactor assembly can be retrieved from the identification tag, allowing the combinatorial system to properly access the reactor regions in the reactor assembly.04-11-2013
20130123988FABRICATING PARTS FROM PHOTOPOLYMER RESIN - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for fabricating parts from photopolymer resin. In one aspect, a method includes iteratively determining a deviation measurement based on a simulated cured geometry and adjusted target geometry data until the deviation measurement is at or less than a threshold. The simulated cured geometry is determined, based in part, on an inhibition model.05-16-2013
20090062961METHOD FOR SOOTBLOWING OPTIMIZATION - A controller determines and adjusts system parameters, including cleanliness levels or sootblower operating settings, that are useful for maintaining the cleanliness of a fossil fuel boiler at an efficient level, Some embodiments use a direct controller to determine cleanliness levels and/or sootblower operating settings. Some embodiments use an indirect controller, with a system model, to determine cleanliness levels and/or sootblower settings. The controller may use a model that is, for example, a neural network, or a mass energy balance, or a genetically programmed model. The controller uses input about the actual performance or state of the boiler for adaptation. The controller may operate in conjunction with a sootblower optimization system that controls the actual settings of the sootblowers. The controller may coordinate cleanliness settings for multiple sootblowers and/or across a plurality of heat zones in the boiler.03-05-2009

Patent applications in class Chemical process control or monitoring system

Patent applications in all subclasses Chemical process control or monitoring system