Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7128776 | Periodic high temperature regeneration of thermal swing adsorption systems An improved thermal swing adsorption process is set forth which addresses the problem of water ingress into the adsorbent by periodically heating the adsorbent to a temperature greater than the temperature used in the normal regeneration cycle. ... | 10/31/2006 |
| 7003359 | Multiple process plant product lines from a common set of engineered components A method for process plant design which comprises (a) preparing a detailed design for a process plant in a product line including a detailed design of at least one engineered component and (b) preparing a detailed design for another process plant in a different prod... | 02/21/2006 |
| 6857433 | Process for cleaning a glass-coating reactor using a reactive gas A process for cleaning a glass-coating reactor includes: (a) providing the reactor to be cleaned, wherein the reactor contains a glass substrate within a chamber and the chamber has an internal surface coated with at least one substance selected from the group consi... | 02/22/2005 |
| 6735980 | Recovery of krypton and xenon A method for recovering krypton and xenon from air comprises (a) separating an air feed stream into oxygen-enriched and nitrogen-enriched product streams; (b) reacting the oxygen-rich product stream with a hydrocarbon feed in a synthesis gas generation process to yi... | 05/18/2004 |
| 6725686 | Method and apparatus for freezing products A tunnel freezer having a metal belt for carrying product therethrough, wherein the weight of said belt is from 1 kg per square meter of surface area to 6 kg per square meter of surface area. ... | 04/27/2004 |
| 6675622 | Process and roll stand for cold rolling of a metal strip A process is set forth for cold rolling of a metal strip, wherein the metal strip passes through a nip between two counter-rotating rolls, driven in counter-rotation substantially at room temperature, wherein a cold and/or liquefied gas, preferably an ine... | 01/13/2004 |
| 6642280 | Control scheme for conversion of variable composition synthesis gas to liquid fuels in a slurry bubble column reactor A control scheme is set forth for conversion of variable composition synthesis gas to liquid fuels in a three-phase or slurry bubble column reactor (SBCR). The control scheme allows one to achieve constant or optimum liquid fuel production and constant or... | 11/04/2003 |
| 6608114 | Process to produce DME A process is set forth for producing DME by dehydrating the effluent stream from a methanol reactor where the methanol reactor is a slurry bubble column reactor (SBCR) containing a methanol synthesis catalyst that converts a synthesis gas stream comprisin... | 08/19/2003 |
| 6564682 | Machine tool distributor for cryogenic cooling of cutting tools on a turret plate A cryogenic fluid distributor for turret machine tools (e.g., lathes) directs a stream of cryogenic fluid from an external, pressurized cryogen source to a working position of a machine tool to prevent overheating of the tool. Designed for easy retrofitti... | 05/20/2003 |
| 6524097 | Method and apparatus for backing-up oxy-fuel combustion with air-fuel combustion Method and apparatus for continuation of combustion with an oxy-fuel combustion system when the supply of oxygen is temporally reduced or stopped. Air or oxygen enriched air and fuel are introduced into the device being heated in place of the oxy-fuel mix... | 02/25/2003 |
| 6519973 | Glass melting process and furnace therefor with oxy-fuel combustion over melting zone and air-fuel combustion over fining zone A process and furnace for melting glass is set forth wherein the majority of the combustion energy over the melting zone of the furnace is provided by oxy-fuel combustion while a majority of the combustion energy over the fining zone of the furnace is pro... | 02/18/2003 |
| 6513336 | Apparatus and method for transferring a cryogenic fluid A method and apparatus are set forth for transferring a cryogenic fluid. A polymeric, coaxial (i.e. "tube-in-tube" geometry) transfer line is utilized where a first portion of the cryogenic fluid flows through the inner tube while a second portion flows t... | 02/04/2003 |
| 6490883 | Process and apparatus for removal of volatile compounds from process gases Volatile compounds ("VCs"), especially volatile organic compounds ("VOCs"), are cryogenically removed from a process gas stream (pW) by cooling the gas stream in a condenser to condense the VC to form both liquid VC and VC ice and providing a t... | 12/10/2002 |
| 6458856 | Separation process for one-step production of dimethyl ether from synthesis gas An improvement to the process for separating dimethyl ether (DME) from byproducts in a one-step catalytic conversion of synthesis gas (syngas), the improvement comprising using a scrubbing solvent comprising a mixture of dimethyl ether and methanol for th... | 10/01/2002 |
| 6349547 | Method and apparatus for freezing products A method of freezing a product, which method comprises the steps of vaporizing a cryogenic liquid and warming the vapor thus formed in indirect heat exchange with a product to be frozen, work expanding the warmed vapor, and using the work expanded vapor t... | 02/26/2002 |
| 6329549 | Dimethyl ether for methyl group attachment on a carbon adjacent to an electron withdrawing group A process for methylating an alpha carbon adjacent to an electron withdrawing group includes reacting dimethyl ether with a molecule containing the alpha carbon and the electron withdrawing group to substitute a methyl group on the alpha carbon. The proce... | 12/11/2001 |
| 6217681 | Method for oxygen-enhanced combustion using a vent stream Oxygen-enhanced combustion in a manufacturing plant using a nitrogen plant to obtain a nitrogen product stream for use in the plant is effected by utilizing the oxygen-rich vent, waste, or exhaust stream as the primary source of oxidant for combustion of ... | 04/17/2001 |
| 6145321 | Method and apparatus for cooling an aqueous liquid A method of cooling an aqueous liquid, which method comprises the steps of: a) placing said aqueous liquid in a vessel; b) reducing the pressure in said vessel to cause said aqueous liquid to boil; c) condensing at least some of the liquid in the vapour created as ... | 11/14/2000 |
| 6116051 | Distillation process to separate mixtures containing three or more components A technique is set forth to reduce the heat requirement of conventional distillation processes which separate feed mixtures containing three or more components. The technique provides a great deal of flexibility in adjusting the temperatures of the requir... | 09/12/2000 |
| 6073463 | Operation of a cryogenic air separation unit which intermittently uses air feed as the repressurization gas for a two bed PSA system The present invention concerns a cryogenic air separation process which intermittently diverts a portion of the air feed as repressurization gas for a front-end two bed pressure swing adsorption adsorption system which system is used to remove impurities ... | 06/13/2000 |
| 6069180 | Single step synthesis gas-to-dimethyl ether process with methanol introduction A process is set forth for converting synthesis gas into dimethyl ether (DME) in a single step comprising contacting the synthesis gas with a bifunctional catalyst system having a methanol synthesis functionality and a methanol dehydration functionality. ... | 05/30/2000 |
| 5953936 | Distillation process to separate mixtures containing three or more components A technique is set forth to reduce the heat requirement of conventional distillation processes which separate feed mixtures containing three or more components. The technique provides a great deal of flexibility in adjusting the temperatures of the requir... | 09/21/1999 |
| 5948456 | Method and apparatus for molding a food product In a method of forming a frozen food product, the temperature of a fluid food product is lowered so that the product is plastic. A mould is pressed against the food product to cause at least a portion of the product to take up the shape of the mould. The ... | 09/07/1999 |
| 5865041 | Distillation process using a mixing column to produce at least two oxygen-rich gaseous streams having different oxygen purities A process is set forth for the cryogenic distillation of an air feed to produce at least two oxygen-rich gaseous streams having different oxygen purities. The process uses a mixing column system in addition to a distillation column system. A key to the pr... | 02/02/1999 |
| 5858030 | Diesel fuel composition comprising dialkoxy alkanes for increased cetane number A diesel fuel composition is set forth for an increased cetane number vis-a-vis conventional diesel fuel compositions. The composition generally comprises one or more compounds selected from the dialkoxy alkane (DAAK) chemical family. In a preferred embod... | 01/12/1999 |
| 5840099 | Process for the removal of water, CO2, ethane and C3 + hydrocarbons from a gas stream A process is set forth for the selective removal of water, CO2, ethane and C3 + hydrocarbons from gas streams, particularly a natural gas stream comprising primarily methane. The process comprises contacting the gas stream with an ad... | 11/24/1998 |
| 5768914 | Process to produce oxygen and argon using divided argon column A process is set forth for the cryogenic distillation of an air feed to produce oxygen and argon and is particularly applicable where high purity oxygen and ultra-high purity argon are required and where only moderate argon recovery is required. A key to ... | 06/23/1998 |
| 5753716 | Use of aluminum phosphate as the dehydration catalyst in single step dimethyl ether process The present invention pertains to a process for the coproduction of methanol and dimethyl ether (DME) directly from a synthesis gas in a single step (hereafter, the "single step DME process"). In this process, the synthesis gas comprising hydrogen and car... | 05/19/1998 |
| 5718116 | Open loop, air refrigerant, heat pump process for refrigerating an enclosed space An open loop, air refrigerant heat pump process is set forth for producing a refrigerated atmosphere inside an enclosed space, in particular the enclosed space of a food freezer. A key to the present invention is that it uses a portion of the cold expande... | 02/17/1998 |
| 5701764 | Process to produce moderate purity oxygen using a double column plus an auxiliary low pressure column A process is set forth for the cryogenic distillation of an air feed to produce an oxygen product, particularly an oxygen product at moderate purity (80-99%, preferably 85-95%). The process uses an auxiliary low pressure column in addition to the conventi... | 12/30/1997 |
| 5697229 | Process to produce nitrogen using a double column plus an auxiliary low pressure separation zone A process is set forth for the cryogenic distillation of an air feed to produce nitrogen, particularly high pressure nitrogen of various purity, varying from low purity (up to 98% nitrogen) to ultra-high purity (less than 1 part per billion of oxygen). Th... | 12/16/1997 |
| 5682762 | Process to produce high pressure nitrogen using a high pressure column and one or more lower pressure columns A process is set forth for the cryogenic distillation of an air feed to produce high pressure nitrogen of various purity, varying from moderately high purity (99.9% nitrogen) to ultra-high purity (less than 1 part per billion of oxygen). The process is pa... | 11/04/1997 |
| 5634356 | Process for introducing a multicomponent liquid feed stream at pressure P2 into a distillation column operating at lower pressure P1 A process is set forth for introducing a multicomponent liquid feed stream at pressure P2 into a distillation column operating at lower pressure P1. The process comprises removing a split stream from the feed stream, reducing its pre... | 06/03/1997 |
| 5630321 | Method and apparatus for freezing A tunnel freezer is cooled by selectively supplying liquid nitrogen to banks of spray nozzles. The banks are switched on and off as required so that at any given time the pressure upstream of each operational spray nozzle will be substantially constant at... | 05/20/1997 |
| 5630327 | Immersion freezer with bottom chamber series of cascading conveyor belts The present invention is an immersion freezer which employs a postcooling chamber. The immersion section of the freezer initially immerses all or part of the items to be frozen (typically food items) in a bath of a liquid refrigerant to impart a crust fre... | 05/20/1997 |
| 5611683 | Method and apparatus for reducing NOX production during air-oxygen-fuel combustion Method and apparatus for reducing NOX production in an air-oxygen-fuel combustion process by creating post mix oxy-fuel flame and introducing air around said oxy-fuel flame at an angle of greater than 0° to 90° to the longitudinal axis of the oxy-fuel f... | 03/18/1997 |
| 5611682 | Low-NOx staged combustion device for controlled radiative heating in high temperature furnaces A staged oxy-fuel burner for producing a generally flat fuel rich flame overlying a highly radiative fuel lean flame, the burner having a fuel passage terminating in a nozzle, the fuel passage and nozzle having a generally elongated cross-section, a housi... | 03/18/1997 |
| 5575637 | Method and device for low-NOx high efficiency heating in high temperature furnaces An oxy-fuel burner for producing a generally flat luminous flame, the burner having fuel passage terminating in a nozzle, the fuel passage and nozzle having a generally elongated cross-section, a housing of complementary shape surrounding the fuel passage... | 11/19/1996 |
| 5538704 | Reduction of ammonia slip in nitrogen oxides reduction process The present invention is an ammonia injection scheme for NOx reductions that also reduces ammonia slip wherein the NOx containing gas to be treated is upstream of a cyclone separator. The reduction in ammonia slip is accomplished by ... | 07/23/1996 |
| 5530168 | Process for the synthesis of a C2 + Aliphatic alcohol in a slurry reactor comprising an in-situ catalyst impregnation step A process is set forth for the synthesis of a C2 + aliphatic alcohol from hydrogen and carbon oxides in the presence of a copper-based catalyst which has been impregnated with an alkali metal compound. The process differs from the prior art in ... | 06/25/1996 |
