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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.

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Class 518/728 - MISCELLANEOUS


Subclass of Class 518 - Chemistry: fischer-tropsch processes; or purification or recovery of products thereof
Definition: Processes not provided for in any other subclass to purify
No. of patents: 156
Last issue date: 05/01/2012


1        
NumberTitleIssue Date
8168687Process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by Fisher Tropsch synthesis reactions in a syngas treatment unit
The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a ...
05/01/2012
8163809Process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by Fisher Tropsch Synthesis reactions in a syngas treatment unit
The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a ...
04/24/2012
8022109Product filtration system for slurry reactors
A filter system for use in a three-phase slurry reactor is provided. The filter system comprises one or more bundles of a plurality of filter elements for separating liquid from a mixture of liquid and solids contained in the reactor. Each filter bundle is connected...
09/20/2011
7645808Process for the preparation of propylene and ethylene from a Fischer-Tropsch synthesis product
A process for the preparation of propylene and ethylene comprises subjecting a gaseous mixture of a dilution gas and a paraffinic feedstock boiling in the gas oil range and having an iso paraffin to normal paraffin ratio of between 2 and 5 to a thermal conversion st...
01/12/2010
7402612Stabilized transition alumina catalyst support from boehmite and catalysts made therefrom
This invention relates to methods for making a stabilized transition alumina of enhanced hydrothermal stability, which include the introduction of at least one structural stabilizer; a steaming step before or after the introduction step, wherein steaming is effectiv...
07/22/2008
7300635Catalytic reactor
A catalytic reactor comprises a plurality of fluid-impermeable plates defining flow channels between them. Tight fitting within each flow channel is a sheet of corrugated material whose surfaces are coated with catalytic material. At each end of the flow channels ar...
11/27/2007
7271201Use of waste heat from Fischer-Tropsch synthesis to form dry pulverized fuel feedstock
A method and a system for drying a biomass, wet pulverized coal or combinations thereof, using heat from a Fischer-Tropsch synthesis in a heat exchanger to heat a nitrogen gas, using a flue gas in a heater to heat the heated nitrogen gas to a higher temperature, pas...
09/18/2007
7235172Olefin production from steam cracking using process water as steam
The invention includes a process for making olefins. In one embodiment, the process comprises producing steam from a process water comprising organic compounds, wherein the process water comprises at least a portion of a product water from a hydrocarbon synthesis pr...
06/26/2007
7235218Catalytic reactors
A compact catalytic reactor comprises a stack of plates (72, 74, 75) to define a multiplicity of first and second flow channels arranged alternately in the stack; each flow channel in which a chemical reaction is to take place is defined by straight-through c...
06/26/2007
7230035Catalysts for the conversion of methane to synthesis gas
The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions to prepare synthesis gas and ultimately C5+ hydrocarbons. In particular, preferred embodiments of the present invention comprise cata...
06/12/2007
7223373Catalytic reactor
A catalytic reactor comprises a plurality of sheets defining flow channels between then. Within each flow channel is a foil of corrugated material whose surfaces are coated with catalytic material. The flow channels extend in transverse dire options, but the foils a...
05/29/2007
7217741Catalytic reactor and process
Fischer-Tropsch synthesis is performed using a compact catalytic reactor unit (10) defining channels in which is a gas-permeable catalyst structure (16), the channels extending between headers (18). The synthesis occurs in at least two stages, a...
05/15/2007
7201883Catalytic reactor
A catalytic reactor comprises a plurality of sheets defining flow channels between them. Within each flow channel is a foil of corrugated material whose surfaces are coated with catalytic material. Flow channels for a first gas extend in oblique directions relative ...
04/10/2007
7189271Catalytic reactor
A catalytic reactor comprises a plurality of thin tray-like metal sheets each with a peripheral rim and arranged as a stack to define first gas flow channels between adjacent sheets, alternating with second gas flow channels between adjacent sheets, so as to ensure ...
03/13/2007
7186388Catalytic reactor
A catalytic reactor comprises a stack of sheets defining flow channels between them. Within each flow channel is a flexible wire structure whose surfaces are coated with catalytic material. Flow channels for a first gas extend along S-shaped curved paths whereas the...
03/06/2007
7183327Optimized particle distribution for slurry bubble column reactors
A method for selecting maximum and minimum catalyst particle sizes for use in a multiphase reactor that reflects optimum operating conditions of the reactor is based on a maximum Archimedes number for estimating the maximum particle size and a property of a separati...
02/27/2007
7179313Regenerative autothermal catalytic steam reformer
A compact steam reformer produces hydrogen to power a fuel cell, such as can be used in a vehicle. The steam reformer includes a first channel, at least partly coated with a steam reforming catalyst, and a second channel, at least partly coated with a combustion cat...
02/20/2007
7108835Fischer-tropsch slurry reactor cooling tube arrangement
An arrangement of cooling tubes within a Fischer-Tropsch slurry reactor simplifies removal and reinstallation of cooling tubes for reactor maintenance. ...
09/19/2006
7109248Converting natural gas to longer-chain hydrocarbons
Natural gas is processed to generate longer-chain hydrocarbons, the process comprising subjecting the gas to steam reforming to generate a mixture of carbon monoxide and hydrogen, and then subjecting this mixture to Fischer-Tropsch synthesis. The Fischer-Tropsch syn...
09/19/2006
7083713Composition of lubricating base oil with high monocycloparaffins and low multicycloparaffins
A composition of lubricating base oil having a weight percent of all molecules with at least one aromatic function less than 0.30, a weight percent of all molecules with at least one cycloparaffin function greater than 10, and a ratio of weight percent of molecules ...
08/01/2006
7019038Recycle of low boiling point products to a Fischer-Tropsch reactor
Methods for reducing the average molecular weight of liquid hydrocarbons in a Fischer-Tropsch reactor are disclosed. The preferred embodiments of the present invention are characterized by feeding a hydrocarbon stream, which lowers the average molecular weight of th...
03/28/2006
7008970Method for direct conversion of gaseous hydrocarbons to liquids
A chemical reactor for direct conversion of hydrocarbons includes a dielectric barrier discharge plasma cell and a solid oxide electrochemical cell in fluid communication therewith. The discharge plasma cell comprises a pair of electrodes separated by a dielectric m...
03/07/2006
6974844Process for starting up a Fischer-Tropsch reactor
A process for starting up a Fischer-Tropsch reactor includes establishing, in the reactor, an initial charge of molten wax. The initial reactor temperature is below the line-out reactor temperature but is sufficiently high for a Fischer-Tropsch reaction to take plac...
12/13/2005
6969505Process for conducting an equilibrium limited chemical reaction in a single stage process channel
This invention relates to a process for conducting an equilibrium limited chemical reaction in a single stage process channel. A process for conducting a water shift reaction is disclosed. A multichannel reactor with cross flow heat exchange is disclosed. ...
11/29/2005
6958364Use of Fischer-Tropsch condensate as a lean oil for heavy ends recovery from Fischer-Tropsch tail gas
A process for recovering light Fischer-Tropsch hydrocarbons from a rich tail gas produced from a Fischer-Tropsch synthesis operation which comprises: (a) recovering separately from a Fischer-Tropsch synthesis operation a Fischer-Tropsch condensate and a hydrocarbon ...
10/25/2005
6943461All-weather energy and water production via steam-enhanced vortex tower
A wind vortex tower is enhanced by kinetic energy and heat of quasi-tangential and upward jets of saturated steam energizing, accelerating tornado-type flow and supporting stable electricity generation during the insufficient winds and calm. For action instead of ab...
09/13/2005
6914082Slurry bubble reactor operated in well-mixed gas flow regime
A gas-agitated multiphase reactor system for the synthesis of hydrocarbons gives high catalyst productivity and reactor capacity. The system includes operating a multi-phase reactor in the well-mixed gas flow regime, with a Peclet number less than 0.175 and a single...
07/05/2005
6887908Treatment of reaction water from a Fischer-Tropsch reactor
An integrated Fischer-Tropsch process provides methods for recovering reaction water from a Fischer-Tropsch reactor with minimal adverse environmental effects and with reduced costs compared to traditional methods. Reaction water, preferably separated from an overhe...
05/03/2005
6881760Methods for monitoring solids content in Fischer-Tropsch products
A method for monitoring the solids content in a Fischer-Tropsch product to allow subsequent changes in the Fischer-Tropsch process to prevent downstream problems. The method comprises irradiating the Fischer-Tropsch product with light and measuring the light transmi...
04/19/2005
6878854Temporary antioxidants for Fischer-Tropsch products
The present invention relates to the use of antioxidants in Fischer Tropsch derived products. The antioxidants of the present invention are preferably temporary antioxidants that may be removed after the period in which oxidation is expected by techniques such as si...
04/12/2005
RE38532Hydrodealkylation processes
Carburization and metal-dusting while hydrodealkylating a hydrodealkylatable hydrocarbon are reduced even in the substantial absence of added sulfur. ...
06/08/2004
6747067Process for converting cellulosic material into liquids
A process for the production of oxygenated C2 hydrocarbons from cellulose is disclosed. The input cellulose waste is gasified using steam in the absence of air and the primary gaseous products of carbon monoxide and hydrogen are subjected to heat, pressur...
06/08/2004
6720358Water stripping and catalyst/liquid product separation system
The present invention relates to a method and system for water removal and optionally liquid product separation in slurry reactors operating at Fischer-Tropsch conditions. More particularly, the present invention includes a water stripping system that allows the rea...
04/13/2004
6717024Slurry hydrocarbon synthesis with liquid hydroisomerization in the synthesis reactor
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in...
04/06/2004
6712982Method of removing catalyst particles from wax
Catalyst particles are separated from the wax in a reactor slurry reactor by feeding a portion of the slurry to a dynamic settler. Heavier catalyst particles settle and are removed as the slurry at the bottom of the settler is recycled back to the reactor. Clarified...
03/30/2004
6682711Protection of Fischer-Tropsch catalysts from traces of sulfur
Methods for removing sulfur from syngas in a Fischer-Tropsch reactor, and reactors including means for removing sulfur from syngas are disclosed. Sulfur-reactive metals can be used in the Fischer-Tropsch unit to sequester the sulfur. For example, the Fisc...
01/27/2004
6673846Handling of a catalyst
This invention relates to methods of minimizing catalyst degradation during the handling of a catalyst used in a slurry phase reactor. The methods include catalyst handling steps such as catalyst loading into a slurry phase reactor, slurry phase reactor s...
01/06/2004
6649803Slurry hydrocarbon synthesis with isomerization zone in external lift reactor loop
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbons in one or more external lift reactor hydroisomerizing loops outside of ...
11/18/2003
6616909Method and apparatus for obtaining enhanced production rate of thermal chemical reactions
Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and proc...
09/09/2003
6570047Slurry hydrocarbon synthesis with external hydroisomerization in downcomer reactor loop
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas, in a hydrocarbon synthesis reactor, also hydroisomerizes the synthesized hydrocarbons in one or more external downcomer reactor hydroisomerizin...
05/27/2003
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