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7628966 |
Method for scrubbing natural gas
The present invention is a process for removing hydrogen sulfide gas from natural gas by contacting a flow of sour natural gas containing hydrogen sulfide gas with a scavenging agent including a...
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7625837 |
Process for the removal of heavy metals from gases, and compositions therefor and therewith
A composition, containing vanadium, potassium and a support is disclosed. A method of preparing such composition is also disclosed. The composition is employed in a process to remove a heavy metal...
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7618606 |
Separation of carbon dioxide (CO2) from gas mixtures
A reaction-based process has been developed for the selective removal of carbon dioxide from a multicomponent gas mixture. The proposed process effects the separation of CO 2 from a mixture of...
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7611685 |
Method for hydrogen sulphide and/or mercaptans decomposition
The inventive method for hydrogen sulphide and/or mercaptans decomposition consists in passing hydrogen sulphide and/or mercaptan-containing gas at a temperature less than 200° C. through a hard...
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7604787 |
Process for sequestering carbon dioxide and sulfur dioxide
A process for sequestering carbon dioxide, which includes reacting a silicate based material with an acid to form a suspension, and combining the suspension with carbon dioxide to create active...
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7588630 |
Carbon dioxide absorbent, carbon dioxide separating apparatus, and reformer
A carbon dioxide absorbent includes lithium silicate containing lithium orthosilicate and lithium metasilicate, the lithium metasilicate being contained in an amount of 5% by weight or more to 40%...
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7578986 |
Fuel reformer catalyst and absorbent materials
Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials such as Group 1 and Group 2 metal oxides that are adapted to absorb CO 2 and catalyst...
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7572429 |
Cyclic pre-reformer/desulphurization unit
A combined desulphurization and pre-reforming processing unit converts logistic fuels such as JP-5, JP-8, gasoline, and diesel with high sulfur content levels, into a mixture of hydrogen, methane,...
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7556673 |
Method for the separation of carbon dioxide using a porous metal-organic framework material
The present invention relates to a method for the separation of carbon dioxide from a gas mixture containing carbon dioxide comprising the steps of
(a) contacting the gas mixture with at least one...
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7553463 |
Technical and economic optimization of combustion, nitrogen oxides, sulfur dioxide, mercury, carbon dioxide, coal ash and slag and coal slurry use in coal fired furnaces/boilers
Methods by which new or used boilers or furnaces ranging from small industrial to the largest utility units that are designed for coal or oil or natural gas or shredded waste or shredded biomass...
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7537742 |
Process and adsorbent for hydrogen purification
This invention discloses an optimum set of adsorbents for use in H 2 -PSA processes. Each adsorbent bed is divided into four regions; Region 1 contains adsorbent for removing water; Region 2 ...
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7521031 |
Method and apparatus for treating exhaust gas
A method for treating exhaust gas includes: adsorbing target components in the exhaust gas with an adsorbent ( 5 ); introducing a nitrogen gas with an oxygen concentration of 10 vol % or less and a...
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7514053 |
Method for removing sulfur dioxide, mercury, and nitrogen oxides from a gas stream
Methods for scrubbing gas streams to remove acid gases including sulfur dioxide, mercury-containing substances, and/or nitrogen oxides from the gas stream. The gas stream is contacted with a...
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7510692 |
Hydride gas purification for the semiconductor industry
A method for hydride gas purification uses materials having at least one lanthanide metal or lanthanide metal oxide. The method reduces contaminants to less than 100 parts per billion (ppb),...
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7498008 |
Process of gas treatment to remove pollutants
A process for the removal of a pollutant from a gas is provided that includes contacting a gas comprising a pollutant with a cataloreactant wherein the cataloreactant reacts with the pollutant and...
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7481985 |
Method of removing impurities from a gas
The present invention provides for a method and apparatus for purifying carbon dioxide. Sulfur species are efficiently and effectively removed from the carbon dioxide by a series of steps which...
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7476372 |
Flue gas scrubbing process utilizing biosolids
A method for reducing acid gases in a flue gas, the method comprising reacting biosolids comprising a scrubbing agent with a flue gas comprising an acid gas, thereby reducing the amount of acid gas...
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7442232 |
Adsorbents, methods of preparation, and methods of use thereof
Adsorbents and methods of use thereof are provided. One representative, among others, includes an adsorbent having an alkali metal promoted, mixed trivalent layered double hydroxide (LDH)...
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7425314 |
Process for removing sulphur compounds including hydrogen sulphide and mercaptans from gas streams
A process for the removal of hydrogen sulfide and mercaptans from a gas stream containing a high ratio of mercaptans to hydrogen sulfide, wherein the first step removes hydrogen sulfide by washing...
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7425231 |
Feed gas contaminant removal in ion transport membrane systems
Method for gas purification comprising (a) obtaining a feed gas stream containing one or more contaminants selected from the group consisting of volatile metal oxy-hydroxides, volatile metal...
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7410515 |
Reformer, method for manufacturing the reformer, and power generation system
A reformer is provided which includes a micro reactor having a flow path for a fluid. A container accommodates the micro reactor and keeps an atmosphere on a periphery of the micro reactor at a...
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7387650 |
Fuel cell power generation system and method for operating the same
A fuel cell power generation system, equipped with a fuel reforming device and a fuel cell body, includes valves, pipelines, a condenser, and a pump for feeding a burner exhaust gas (raw gas)...
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7354560 |
Process for the production of hydrogen
Process for the removal of organic and/or inorganic sulfur from an ammonia stream by passing said stream through a fixed bed of sulfur absorbent in a sulfur absorber and withdrawing a sulfur-free...
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7323151 |
Process for the selective removal of sulphur compounds from synthesis gas
A process for the selective removal of sulphur compounds from synthesis gas being rich in carbon monoxide and containing hydrogen, carbon monoxide and containing hydrogen, carbon dioxide and steam...
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7314847 |
Regenerable sorbents for CO2 capture from moderate and high temperature gas streams
A process for making a granular sorbent to capture carbon dioxide from gas streams comprising homogeneously mixing an alkali metal oxide, alkali metal hydroxide, alkaline earth metal oxide,...
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7282189 |
Production of hydrogen and removal and sequestration of carbon dioxide from coal-fired furnaces and boilers
Methods for reducing and eliminating carbon dioxide from the emissions of solid fuel fired power plants, particularly coal fired power plants, and to sequester the carbon dioxide, typically by...
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7267811 |
Fuel reformer catalyst and absorbent materials
Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials, and methods for using such materials for the conversion of...
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7241430 |
Activated carbon for odor control and method for making same
An activated carbon-metal oxide matrix is disclosed. The activated carbon-metal oxide matrix may be obtained by a method including the steps of: preoxidizing a carbon material, grinding the...
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7217303 |
Pressure swing reforming for fuel cell systems
The present invention provides an improvement in the process of producing hydrogen from hydrocarbon-containing streams. A cyclic reforming process, referred to as pressure swing reforming, provides...
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7198768 |
Anti-degradation mechanisms for protecting aminated surfaces
A device and methods for either protecting or restoring the delicate surface chemistry of amine-coated substrates adapted for biological assay uses from the deleterious effects of exposure to...
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7132090 |
Sequestration of carbon dioxide
A process for selectively removing carbon dioxide from a gaseous stream by converting the carbon dioxide to a solid, stable form is provided. In a sequestration process, carbon dioxide enriched air...
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7101417 |
Activated carbon for odor control and method for making same
An activated carbon/metal oxide filter element is disclosed. The filter element may be prepared by blending an activated carbon, a metal oxide, and a binder to form a filter media mixture, shaping...
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7078011 |
Method of storing and supplying hydrogen to a pipeline
A method of storing and supplying a gaseous hydrogen product to a pipeline under a product purity specification in which a hydrogen stream made up of gaseous hydrogen is compressed to form a...
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7067093 |
Attrition resistant, zinc titanate-containing, reduced sulfur sorbents and methods of use thereof
Reduced sulfur gas species (e.g., H 2 S, COS and CS 2 ) are removed from a gas stream by compositions wherein a zinc titanate ingredient is associated with a metal oxide-aluminate phase material in...
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7060233 |
Process for the simultaneous removal of sulfur and mercury
A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the...
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7056482 |
Method for recovery of CO2 from gas streams
A process for recovering CO 2 from a feed gas stream comprises treating the feed gas stream with a regenerated absorbent comprising at least one tertiary amine absorbent having a pK a for the...
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7033566 |
Photocatalyst and use thereof for decomposing chemical substance
A photocatalyst including a metal oxide semiconductor represented by the formula:
In 1−x M x AO 4
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7022168 |
Device for removing carbon dioxide from exhaust gas
In a method for removing carbon dioxide from the exhaust gas from a gas turbine plant ( 11 ), which exhaust gas is subjected to a downstream heat recovery process ( 12, 33 ), preferably in the heat...
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7014689 |
Body for isolating a constituent contained in a gas mixture
The invention relates to bodies for separating out a component contained in a gas mixture. The gas mixtures may, for example, be crude gases which contain hydrocarbons, such as natural gas, or...
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6998099 |
Method for desulphurizing acid gases using catalysts that are insensitive to oxidation and contain aminocarboxylate
A process is described for the catalytic removal of H 2 S gas from a sour gas stream in the presence of a chelate ligand of the formula (I)
where: X is hydrogen, an alkali metal or NH 4 +...
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6964755 |
Method for producing high activity photocatalyst, photoactivity catalyst, and method for treating hydrogen sulfide for recovering hydrogen gas under low energy by using high activity photocatalyst
A high activity catalyst is obtained by oxidizing and modifying the surface of zinc sulfide by hydrogen peroxide. An oxidation treatment is carried out in basic aqueous solution. The high activity...
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6962616 |
Preparation of adsorbents from organic fertilizer and mineral oil and their application for removal of acidic gases from sulfur containing wet gas streams
A method of making an adsorbent which includes: a) thermally drying dewatered sewage sludge to form granulated organic fertilizer; b) treating the fertilizer with mineral oil; and c) pyrolyzing the...
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6951635 |
Zinc oxide-based sorbents and processes for preparing and using same
Zinc oxide-based sorbents, and processes for preparing and using them are provided, wherein the sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The...
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6942719 |
Methods and systems for pressure swing regeneration for hydrogen generation
Methods and systems for pressure swing absorption for hydrogen generation are presented. In one embodiment, a method includes absorbing at least one oxide of carbon with a pressure swing absorber...
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6908497 |
Solid sorbents for removal of carbon dioxide from gas streams at low temperatures
New low-cost CO 2 sorbents are provided that can be used in large-scale gas-solid processes. A new method is provided for making these sorbents that involves treating substrates with an amine...
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6905592 |
Process for the desulphurization of feed streams
The invention relates to: a process for the desulphurization of feed streams comprising: supplying a hot process stream to a lead catalyst bed ( 8 ) comprising a first sulphur-removing catalyst and...
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6901334 |
Methods and systems for high throughput analysis
Methods of analyzing processes for making catalysts and/or certain properties of catalysts using a plurality of reaction zones are provided. The methods of the present invention have the capability...
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6896858 |
Gas refining system
A gas refining method for adsorbing a reducing gas obtained by pressure gasification of coal or oil comprises introducing a reducing gas stream into an adsorbing and removing zone where it contacts...
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6875410 |
Adsorbent for removing sulfur compounds from fuel gases and removal method
An adsorbent for removing sulfur compounds from sulfur compounds-containing fuel gas contains a zeolite ion-exchanged with Ag and has an excellent performance when used to remove sulfur compounds...
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6866702 |
Device for absorbing carbon dioxide, and a method for absorbing carbon dioxide
The present invention relates to a device for absorbing carbon dioxide, which is equipped along an automobile exhaust pipe and a factory chimney. The present invention also relates to a method for...
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