Texaco Inc. Patent applications |
Patent application number | Title | Published |
20110274492 | DRILLED UNDERGROUND GASEOUS STORAGE SYSTEM - The present invention discloses embodiments of a drilled underground gaseous storage system. The embodiments of the present invention comprise storage tubes inserted below the surface of the ground for the storage of gases. The embodiments of the present invention may be used to store gaseous hydrogen. In addition, the embodiments of the present invention many be used to store other gases such as compressed natural gas. | 11-10-2011 |
20110247724 | Method For Managing Storage of Gaseous Hydrogen - In order to increase the hydrogen utilization rate of the cascade storage system, after dispensing gaseous hydrogen to a hydrogen vehicle, gaseous hydrogen is transferred via a compressor from at least one storage vessel at a lower pressure to at least one storage vessel at a higher, dispensable pressure. The methods of the present invention economically and efficiently increase the utilization rate of gaseous hydrogen stored in a cascade storage system by managing the storage of gaseous hydrogen and increasing the utilization rate of gaseous hydrogen stored in a cascade storage system. | 10-13-2011 |
20110244499 | METHODS OF ENZYMATIC HYDROLYSIS - In one embodiment the instant invention generally pertains to a method for producing glucose for fermentation. The method comprises first treating a biomass with acid and heat under conditions sufficient to produce a composition mixture comprising cellulose suitable for enzymatic hydrolysis. Next, at least a portion of the cellulose of step (a) is enzymatically hydrolyzed under conditions sufficient to form a composition comprising glucose. The glucose is then fermented. Advantageously, one or more reaction conditions are more efficient because they are selected by first measuring an initial hydrolysis rate of said biomass and then selecting one or more appropriate reaction conditions based upon said initial hydrolysis rate. | 10-06-2011 |
20110239529 | BIODIESELS USEFUL FOR IMPROVING CLOUD POINT - The instant invention pertains to new biodiesels which may be blended with petrodiesel. The biodiesels may comprise a fatty acid C | 10-06-2011 |
20100307052 | INTEGRATED BIOFUEL PROCESS - The instant invention pertains to new processes which produce an energy source effectively, efficiently, and in a more environmentally friendly manner. The process comprises hydrolyzing a lignocellulosic feedstock to form lignocellulosic hydrolyzate and a hydrolyzate residue. The lignocellulosic hydrolyzate is treated to produce hydrogen. The hydrolyzate residue may be reacted with hydrogen in the presence of a catalyst to yield the energy source. | 12-09-2010 |
20100192573 | USING HEAT FROM PRODUCED FLUIDS OF OIL AND GAS OPERATIONS TO PRODUCE ENERGY - The instant invention pertains to new processes and apparatuses which can effectively and efficiently convert heat contained in wellhead fluids comprising hydrocarbons to a useful energy source like electricity. The process generally comprises first producing a heat containing fluid comprising one or more hydrocarbons from a wellhead and then passing said heat containing fluid to one or more heat exchangers. The one or more exchanger exchange at least a portion of the heat contained in said heat containing fluid to a working fluid thereby producing a heated working fluid capable of converting energy. | 08-05-2010 |
20100154924 | VARIABLE VOLUME HYDROGEN STORAGE - In the present invention methods for storing gaseous hydrogen employing an ionic liquid are disclosed. The ionic liquid is used to displace the volume in the storage tanks. By displacing the volume in the storage tanks with the ionic liquid, the storage pressure can remain constant and the “stranded” gas can be eliminated. This constant pressure will also allow for a reduction in the number of storage tanks needed to provide the required inventory at hydrogen fueling stations. In addition, this constant pressure will provide a complete and fast fill to the vehicle. | 06-24-2010 |
20100150794 | SMALL DISTRIBUTED GASIFICATION UNITS WITH SYNGAS TRANSPORTATION VIA PIPELINE NETWORK FOR BIOMASS TREATMENT - The present invention discloses a system for biomass treatment which addresses the need to find economical solutions to transport biomass. In the present invention, small, distributed gasifiers convert the biomass into synthesis gas (“syngas”). The syngas is then transported via a pipeline network to a central fuel production facility. | 06-17-2010 |
20100107483 | Diesel fuel composition - A diesel fuel containing a soot dispersant additive which is a grafted and derivatized low molecular weight copolymer of ethylene and at least one C | 05-06-2010 |
20090250138 | METHOD FOR MANAGING STORAGE OF GASEOUS HYDROGEN - The present invention discloses methods for managing the storage of gaseous hydrogen and increasing the utilization rate of gaseous hydrogen stored in a cascade storage system. In order to increase the hydrogen utilization rate of the cascade storage system, after dispensing gaseous hydrogen to a hydrogen vehicle, gaseous hydrogen is transferred via a compressor from at least one storage vessel at a lower pressure to at least one storage vessel at a higher, dispensable pressure. The methods of the present invention economically and efficiently increase the utilization rate of gaseous hydrogen stored in a cascade storage system. | 10-08-2009 |
20090218062 | PROCESS FOR GENERATING A HYDROCARBON FEEDSTOCK FROM LIGNIN - The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution. | 09-03-2009 |
20090218061 | PROCESS FOR GENERATING A HYDROCARBON FEEDSTOCK FROM LIGNIN - The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution. | 09-03-2009 |
20090194190 | Variable switch point for a cascade storage system for gaseous Hydrogen - In the present invention, a cascade storage system for gaseous hydrogen including a variable switch point is disclosed. The variable switch point allows the cascade storage system to quickly dispense gaseous hydrogen to fill hydrogen vehicles in addition to increasing the utilization of gaseous hydrogen in the cascade storage system. | 08-06-2009 |
20090165887 | APPARATUS AND METHOD FOR PROVIDING HYDROGEN AT A HIGH PRESSURE - An apparatus and method for providing a hydrogen rich gas stream at a high pressure for use by hydrogen vehicles or other devices requiring hydrogen rich feed streams are disclosed in the present invention. As the pressure of gaseous hydrogen is increased, the temperature of the gaseous hydrogen also increases due to the heat of compression. The apparatus and method of the present invention utilize localized cooling via a vortex tube to cool the gaseous hydrogen caused by the increase in pressure. | 07-02-2009 |
20090151809 | METHOD FOR FILLING GASEOUS HYDROGEN STORAGE TANKS - The present invention discloses methods for filling gaseous hydrogen storage tanks. The methods of the present invention include methods for refilling gaseous hydrogen storage tanks utilizing a cascade fill. The methods of the present invention provide for the efficient refilling of the gaseous hydrogen storage tanks and the efficient dispensing of gaseous hydrogen to hydrogen vehicles. | 06-18-2009 |
20080289255 | Apparatus and Method for Producing Hydrogen - An apparatus and method for producing hydrogen. The apparatus includes a fuel processor, a purification unit and a system controller. The controller determines a calculated flow of reformate from the fuel processor and operates the purification unit based on the calculated flow. The calculated flow is derived from a process model of the fuel processor and known feed(s) to the fuel processor. The calculated flow of reformate is used to control the flow of reformate to adsorbent beds within the purification unit and can be used to control other materials flows within the apparatus. Means for reducing fluctuations in the pressure and/or flow rate of reformate flowing from the fuel processor to the purification unit are also disclosed. The purity of the hydrogen produced can be maintained by adjusting the operation of the purification unit in response to changes in reformate composition, pressure and/or flow rate. | 11-27-2008 |
20080288208 | Method for Calculating Hydrogen Storage Inventory - Methods for accurately and conveniently calculating the inventory of hydrogen storage in a stationary storage vessel using the external ambient temperature and the internal pressure are disclosed in the present invention. To account for the delay in the heat transfer from the ambient air to the storage vessel and then to the hydrogen gas a first order filter can be used on the external ambient temperature. Following the application of the first order filter on the external ambient temperature, an empirical equation is used to calculate the mass of hydrogen in the stationary storage vessel. | 11-20-2008 |
20080202624 | System and method for monitoring a ground connection - Exemplary systems and methods are directed to monitoring a ground connection at a fueling facility. The system being configured to perform the method that includes measuring a vehicle ground quality. The method also includes determining a dispenser ground quality, evaluating the vehicle ground quality based on the dispenser ground quality and a threshold value, and controlling the dispensing of fuel based on the evaluation. | 08-28-2008 |