Class / Patent application number | Description | Number of patent applications / Date published |
436037000 | TESTING OF CATALYST | 27 |
20090305425 | In-Line Localized Monitoring of Catalyst Activity in Selective Catalytic NOx Reduction Systems - Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NO | 12-10-2009 |
20110045596 | PROCESS AND INSTALLATION FOR TESTING CATALYSTS - The invention relates to a process for testing performance levels and/or changes over time of at least one catalyst CAT for a fixed-bed reactor comprising at least the following stages:
| 02-24-2011 |
20110111508 | CONTINUOUS PROCESS FOR MAINTAINING THE ACID CONTENT OF AN IONIC LIQUID CATALYST - A process for determining ionic liquid catalyst deactivation including (a) collecting at least one sample of an ionic liquid catalyst; (b) hydrolyzing the at least one sample to provide at least one hydrolyzed sample; (c) titrating the at least one hydrolyzed sample with a basic reagent to determine a volume of the basic reagent necessary to neutralize a Lewis acid species of the ionic liquid catalyst; and (d) calculating the acid content of the at least one sample from the volume of basic reagent determined in step (c) is described. Processes incorporating such a process for determining ionic liquid catalyst deactivation are also described. These processes are an alkylation process, a process for controlling ionic liquid catalyst activity in a reaction producing by-product conjunct polymers, and a continuous process for maintaining the acid content of an ionic liquid catalyst at a target acid content in a reaction producing by-product conjunct polymers. | 05-12-2011 |
20110183423 | PROCESS FOR CONTROLLING IONIC LIQUID CATALYST ACTIVITY BY TITRATION - A process for determining ionic liquid catalyst deactivation including (a) collecting at least one sample of an ionic liquid catalyst; (b) hydrolyzing the at least one sample to provide at least one hydrolyzed sample; (c) titrating the at least one hydrolyzed sample with a basic reagent to determine a volume of the basic reagent necessary to neutralize a Lewis acid species of the ionic liquid catalyst; and (d) calculating the acid content of the at least one sample from the volume of basic reagent determined in step (c) is described. Processes incorporating such a process for determining ionic liquid catalyst deactivation are also described. These processes are an alkylation process, a process for controlling ionic liquid catalyst activity in a reaction producing by-product conjunct polymers, and a continuous process for maintaining the acid content of an ionic liquid catalyst at a target acid content in a reaction producing by-product conjunct polymers. | 07-28-2011 |
20110217781 | CATALYST FORMULATION FOR HYDROGENATION - A composition and method for preparation of a catalyst for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes, high alkyne conversion, and sustained catalytic activity comprising a Group VIII metal and a Group IB, Group IIB, Group IIIA, and/or Group VIIB promoter on a particulate support. | 09-08-2011 |
20120190117 | CATALYST FORMULATION FOR HYDROGENATION - A method of screening catalysts for liquid-phase selective hydrogenation by preparing a test catalyst by adding a promoter to a reference catalyst; preparing a liquid reactant stream comprising C | 07-26-2012 |
20130059390 | SYSTEM AND METHOD FOR MONITORING THE ATMOSPHERE OF AN ANAEROBIC WORKSTATION - Aspects of the invention relates to a system and method for determining the efficacy of the catalyst comprising means to detect any temperature change in the catalyst when oxygen is present in the anaerobic workstation and determine the efficacy of the catalyst in accordance with the temperature change. A detectable rise in the temperature of the catalyst is indicative of a catalytic reaction to remove oxygen from the anaerobic work station. Thus, the system determines the catalyst is an active catalyst if the temperature of the catalyst rises when oxygen is present in the anaerobic workstation. The system determines the catalyst is an inactive catalyst if the temperature of the catalyst does not rise when oxygen is present in the anaerobic workstation. Further aspect of the invention relate to a system and method for determining the atmosphere of an anaerobic workstation in accordance with the efficacy of the catalyst of the anaerobic workstation. | 03-07-2013 |
20130078725 | ENGINE CATALYST DIAGNOSTICS - Embodiments for predicting catalyst function are disclosed. One example embodiment includes applying a set of parameter readings for a given sample to a support vector machine to generate a classification output, recording a plurality of classification outputs for a plurality of successive samples over a first duration, and indicating catalyst degradation if a threshold percentage of the classification outputs indicates degraded catalyst performance. In this way, catalyst degradation may be indicated using a simplified model that does not require extensive calibration. | 03-28-2013 |
20130273662 | DEVICE AND METHOD FOR TESTING CATALYSTS WITH VARIABLE PROCESS PRESSURE ADJUSTMENT - The present invention relates to a catalysis apparatus for testing catalysts with variable process pressure adjustment over a pressure range from 0.01 millibar to 300 bar. The apparatus preferably has a plurality of reaction chambers ( | 10-17-2013 |
20130288378 | Two-Dimensional Electron Gas (2DEG)-Based Chemical Sensors - Sensors for sensing/measuring one or more analytes in a chemical environment. Each sensor is based on a semiconductor structure having an interfacial region containing a two-dimensional electron gas (2DEG). A catalyst reactive to the analyte(s) is in contact with the semiconductor structure. Particles stripped from the analyte(s) by the catalyst passivate the surface of the semiconductor structure at the interface between the catalyst and the structure, thereby causing the charge density in the 2DEG proximate the catalyst to change. When this basic structure is incorporated into an electronic device, such as a high-electron-mobility transistor (HEMT) or a Schottky diode, the change in charge density manifests into a change in an electrical response of the device. For example, in an HEMT, the change in charge density manifests as a change in current through the transistor, and, in a Schottky diode, the change in charge density manifests as a change in capacitance. | 10-31-2013 |
20140024121 | METHOD FOR PREDICTING THE EFFICIENCY OF A TiO2 PHOTOCATALYST - The present invention relates to a method for predicting the efficiency of a TiO | 01-23-2014 |
20140030810 | METHOD FOR THE DYNAMIC DETECTION OF LEAKAGES FOR SCR CATALYTIC CONVERTERS - A method and an arrangement for dynamic breakthrough detection is proposed. The arrangement comprises at least a transfer element, at least a memory unit in which sensor characteristic curves, at least a controller and an evaluation logic are stored. | 01-30-2014 |
20140045269 | COBALT-MOLYBDENUM SULFIDE CATALYST MATERIALS AND METHODS FOR STABLE ALCOHOL PRODUCTION FROM SYNGAS - The present invention provides methods and compositions for the chemical conversion of syngas to alcohols. The invention includes catalyst compositions, methods of making the catalysts, and methods of using the catalysts including techniques to maintain catalyst stability. Certain embodiments teach compositions for catalyzing the conversion of syngas into products comprising at least one C | 02-13-2014 |
20140093966 | DEVICE FOR SUPPLY OF REACTANT LIQUIDS - The inventive device serves for simultaneous supply of nonvolatile reactant liquid to a plurality of mixing points or to a plurality of reactors, the device comprising a reservoir vessel, a supply line and a splitter which divides the supply line into a group of downstream lines. Each individual downstream line is functionally connected to one mixing point or one reactor and each is equipped with a restrictor element, the restrictor elements and at least parts of the downstream lines being in contact with a sheath having a temperature control unit. | 04-03-2014 |
20140106460 | METHODS AND SYSTEMS FOR DIAGNOSTICS OF AN EMISSION SYSTEM WITH MORE THAN ONE SCR REGION - Methods and systems for controlling and/or diagnosing an emission control system of a vehicle having a first SCR region upstream of a second SCR region are provided herein. One exemplary method includes, indicating degradation based on a first SCR region performance during a first condition; and indicating degradation based on a second SCR region performance during a second condition, the first condition different than the second condition. In this way, different levels of degradation among different SCR regions may be used to indicate emissions levels have increased above a threshold value, for example. | 04-17-2014 |
20140220691 | DETERMINATION OF A DEGREE OF AGING OF AN OXIDIZING CATALYTIC CONVERTER - A method for determining a degree of aging of an oxidizing catalytic converter in an exhaust system of an internal combustion engine is provided. The method comprises generating a temporary increase in carbon monoxide levels in an exhaust gas stream, monitoring subsequent oxidizing action and determining a degree of aging of the oxidizing catalytic converter as a function of the measured oxidizing action. The method further comprises measuring a temperature rise during oxidation and correlating the aging of the converter to the speed of temperature rise. | 08-07-2014 |
20140335625 | Temperature Control Method in a Laboratory Scale Reactor - Disclosed herein is a method of separating variations in the mass flow of gas through a catalyst from the thermal load observed by the temperature control system in a test bench. The method may include separating the temperature control component from the mass flow control component. | 11-13-2014 |
20140335626 | Test Bench Gas Flow Control System and Method - The present disclosure may include a method for preparing gas mixtures of use in testing catalysts, where the method may include using separate banks of mass flow controllers for mixing the gas composition to the desired composition and for controlling the flow of the gas composition through the heater. A separate bank may be used for controlling any suitable mix of reducing agents while another separate bank may be used for controlling any suitable mix of oxidizing gases. | 11-13-2014 |
20140342459 | METHOD FOR RECOGNIZING SENSOR POISONINGS AND TEST STATION FOR CARRYING OUT THE METHOD - A method for recognizing sensor poisonings in portable gas-measuring devices with a test station having a main unit with a control and analysis unit and test modules connected with the main unit for data exchange with an connected device. The test station recognizes device model and/or gas sensor model of the connected device. The main unit has gas inlets for different test gases and there is a first gas feed line for sending test gas to the test modules and a second gas feed line for sending purging gas to the test modules and a gas drain line to return gas from the test modules to the main unit. The method includes detection of a first measured value and of a second measured value and determination of sensor poisoning on the basis of the two values. The test station control and analysis unit carries out the method. | 11-20-2014 |
20140370605 | METHOD FOR EXAMINING REACTION LAYER FOR FUEL CELL - The purpose of the present invention is to grasp the state in which hydrophilic groups of an electrolyte are distributed in a reaction layer for fuel cells. Nitric acid groups are bonded to hydrophilic groups (sulfonic acid groups) contained in a reaction layer for fuel cells, and metal ions capable of forming a nitrosyl complex with the nitric acid groups, e.g., ruthenium ions, are introduced into the reaction layer to dye the nitric acid groups bonded to the hydrophilic groups contained in the reaction layer. When the hydrophilic groups have agglomerated, the nitric acid groups bonded thereto also agglomerate. When said nitric acid groups are dyed with ruthenium, the ruthenium also agglomerates to make it possible to examine said nitric acid groups with an electron microscope. | 12-18-2014 |
20140370606 | METHOD FOR ESTIMATING THE DEAD TIME OF A LAMBDA SENSOR OF AN EXHAUST GAS PURIFYING DEVICE - In a method for operating an exhaust gas purifying device, with at least one catalyst for filtering exhaust gas and at least one lambda sensor arranged in the exhaust gas, an end of a time period assigned to a maximum or minimum of a delayed signal value supplied by the lambda sensor is determined in that a variable value tracks the signal value and, if the signal value falls short of or exceeds the variable value by a specific difference value, the end of the time period is determined. The end of a time period is corrected on the basis of the time constant of the delay. | 12-18-2014 |
20140370607 | DIRECT IN SITU MONITORING OF ADSORBENT AND CATALYST BEDS - Methods and devices for directly measuring the degree of saturation or degree of deactivation of an adsorbent and/or catalytic bed are described herein. The devices contain an inlet, an outlet, a catalytic and/or adsorbent bed, and optionally a support bed for supporting the catalytic and/or adsorbent bed. The devices further contain one or more structures attached to the reactor that allow for insertion of one or more sensors into the reactor. The sensor is used to spectroscopically interrogate the adsorbent and/or catalyst in situ, providing real-time information regarding adsorbant saturation and/or catalyst deactivation. The devices and methods described herein can be used to determine the saturation degree of adsorbent materials or catalyst beds that are involved in gas-liquid and liquid-liquid heterogeneous systems, such as those used in scrubbing and extraction. | 12-18-2014 |
20150050742 | Analysis of Occurrence of Corrosion Products with ZPGM and PGM Catalysts Coated on Metallic Substrates - The present disclosure provides identification techniques on platinum group metal (PGM) and zero platinum group metal (ZPGM) catalyst systems, in order to identify responsible materials for the formation of corrosion products, such as hexavalent chromium compounds. Identification analyses, such as X-ray diffraction analysis (XRD) and X-ray fluorescence (XRF) may be performed on various thermally treated PGM and ZPGM catalyst systems. Results of identification analyses may show that for both PGM and ZPGM catalysts, hexavalent chromium (Cr | 02-19-2015 |
20150147816 | METHOD OF EVALUATING RESIN - Provided is a method of evaluating a resin capable of quantitatively evaluating a deterioration degree of the resin with high accuracy and ease. The method includes evaluating the resin based on a shift of a characteristic peak representing a deterioration degree of the resin, the peak being observed in thermal analysis of the resin by a temperature increase, to lower temperatures. | 05-28-2015 |
20150316518 | METHOD FOR QUANTITATION OF ACID SITES IN ACIDIC CATALYSTS USING SILANE AND BORANE COMPOUNDS - A method of quantifying an amount of Brønsted acid sites in an aluminum chloride-containing catalyst is described. The method involves adding a known amount of at least one silane or borane compound to the aluminum chloride-containing catalyst being analyzed. The Brønsted acid sites in the aluminum chloride-containing catalyst react with the silane or borane compound to form a silyl boryl compound, resulting in a catalyst phase and a hydrocarbon phase which contains the silyl or boryl compound. The amount of silyl or boryl compound in the hydrocarbon phase is measured. From the measured amount of silyl or boryl compound formed, the amount of Brønsted acid sites can be determined. | 11-05-2015 |
20160108791 | Aftertreatment Control for Detection of Fuel Contaminant Concentration - A method and a system for determining if fuel containing more than the desired concentration of sulfur is being combusted in an engine. The engine includes a selected catalytic reduction (SCR) module or a lean NOx trap (LNT) and the system includes various sensors and a controller for calculating NOx conversion ratio and ammonia slip. Timers are utilized for purposes of positively identifying when sulfur in the fuel is causing a substandard performance of the exhaust system. If the timers or time periods are not satisfied, a conversion ratio failure or an ammonia slip failure is attributable to equipment failure, and not sulfur in the fuel. However, if the timers are satisfied, then sulfur in the fuel is positively identified as the problem thereby enabling the operator to eliminate equipment failure as a possible source of the conversion ratio or ammonia slip failure. | 04-21-2016 |
20160252485 | APPARATUS AND METHOD FOR INVESTIGATING DISCONTINUOUS PRODUCT FLUID STREAMS IN THE REACTION OF REACTANT FLUID STREAMS OVER SOLID CATALYSTS | 09-01-2016 |