摘要:
A system and method of producing syngas from a solid waste stream is provided. The system includes a low tar gasification generator that gasifies the solid waste stream to produce a first gas stream. A process module cools the first gas stream and removes contaminants, such as metals, sulfur and carbon dioxide from the first gas stream to produce a second gas stream having hydrogen and carbon monoxide. The second gas stream is received by pressure swing absorber which removes carbon monoxide and increases the purity of the hydrogen to allow the generation of electrical power by a PEM fuel cell in a power module. A water gas shift process may be used to convert carbon monoxide recovered from a retentate stream exhausted by the pressure swing absorber.
摘要:
Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z 1 OZ 2 OSiCH 2 ] 3 (I), wherein each Z 1 and Z 2 independently represent a hydrogen atom, a C 1 -C 4 alkyl group or a bond to a silicon atom of another monomer and at least one other trivalent metal oxide monomer are provided herein. Methods of preparing and processes of using the organosilica materials, e.g. , for catalysis etc. , are also provided herein.
摘要:
Methods of preparing organosilica materials, which is a polymer comprising independent siloxane units of Formula [Z3Z4SiCH2]3 (I), wherein each Z3 represents a hydroxyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another siloxane unit and each Z4 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C4 alkyl group, or an oxygen atom bonded to a silicon atom of another siloxane, in the absence of a structure directing agent and/or porogen are provided herein. Processes of using the organosilica materials, e.g., for gas separation, etc., are also provided herein.
摘要翻译:制备有机硅材料的方法,其为包含式[Z 3 Z 4 SiCH 2] 3(I)的独立硅氧烷单元的聚合物,其中每个Z 3表示羟基,C1-C4烷氧基或与另一硅氧烷的硅原子键合的氧原子 在不存在结构导向剂和/或致孔剂的情况下,Z4表示羟基,C1-C4烷氧基,C1-C4烷基或与另一硅氧烷的硅原子键合的氧原子。 于此。 本文还提供了使用有机二氧化硅材料的方法,例如用于气体分离等。
摘要:
The present disclosure provides a process for cleaning raw product gas. The process comprises contacting the raw product gas with a flow of catalyst to reform organic contaminants and inorganic contaminants in the raw product gas and to remove particulates. Further, the process comprises cooling the resulting product gas via heat exchange with a heat exchange medium in the presence of char or a solid adsorbent medium to condense remaining organic contaminants and inorganic contaminants on the char or solid adsorbent medium and to filter out fine particulates.
摘要:
Systems, compositions, and methods for removing a substance or substances from a material, such as a gas or liquid material, are described. The compositions can comprise composite removal particles. In some embodiments, the composite removal particles can be comprised of support particles made from an inexpensive carrier material, and a reactive particle borne on the support particle. The reactive particle reacts with the substance or substances in the material. The reacted composite removal particles can then be removed from the material, which reduces the amount of the substance or substances present in the material. The composite removal particles are useful for removing pollutants, such as mercury, from exhaust gases, such as flue gas from a power plant combustion unit, and from other materials such as natural gas, liquefied natural gas, fuels, hydrocarbons, petrochemicals, and refinery streams.
摘要:
A method of obtaining purified hydrogen and purified carbon monoxide from crude synthesis gas. A first crude synthesis gas stream is passed through a first separation zone to separate a hydrogen stream from a stream comprising carbon monoxide and methane. The carbon monoxide and methane are subjected to thermal reforming to produce a second crude synthesis gas, which is passed through a second separation zone to separate carbon monoxide from the second crude synthesis gas stream.
摘要:
This invention concerns a method for producing a gas comprising at least 80 vol% carbon monoxide from a Fischer- Tropsch off-gas. The method comprises the following steps: (1) feeding Fischer-Tropsch off-gas through a column comprising an adsorbent bed at high pressure and discharging effluent; (2) reducing the pressure in the column and the bed slightly; (3) rinsing the column and the adsorbent bed with methane or a mixture of methane and carbon dioxide; (4) reducing the pressure of the column and adsorbent bed to a low pressure; (5) rinsing the column and adsorbent bed with a mixture of hydrogen and nitrogen; (6) pressurizing the column and adsorbent bed to a high pressure again using a mixture of hydrogen and nitrogen. The product stream obtained in step (3) which comprises at least 80 vol% carbon monoxide can be sent as feed to a Fischer-Tropsch reaction.In a preferred embodiment a gas comprising at least 80 vol% hydrogen is produced as well.
摘要:
La présente invention concerne l'élimination de métaux lourds et notamment de mercure et éventuellement d'arsenic et de plomb présents dans un effluent gazeux ou liquide, au moyen d'un procédé en lit fixe mettant en œuvre un adsorbant, sous la forme d'extrudés massiques ou supportés, lesdits extrudés étant caractérisés par une longueur h et une section comportant au moins trois lobes. L'adsorbant est composé au moins d'une phase active à base de soufre sous la forme élémentaire ou sous la forme de sulfure métallique. L'invention s'applique avantageusement au traitement de gaz d'origine industrielle, de gaz de synthèse, de gaz naturel, de condensats en phase gazeuse et de charges hydrocarbonées liquides.
摘要:
The present invention relates to a process for converting biomass thermal energy into electrical power, wherein, after obtaining synthesis gas, one proceeds to the following successive steps: a) removal of upstream particles from the gas cleaning system allowing a concentration no higher than 2 g/Nm3 b) washing the synthesis gas to remove tars and ammonia, c) removing water from synthesis gas prior to its injection into the engine, d) attenuating pressure fluctuations before the engine, by using a storage reservoir, e) injecting the resulting gas into a system of electrical power production, composed by at least one gas engine coupled to an electric generator. The present invention also regards the facilities for electrical power production from biomass, for the execution of the referred process.
摘要:
A facility for complex processing of organic waste, comprising of waste preparation module, which includes waste separation, waste mixing and biotunnel, a module for waste pyrolysis and gasification, including reactor for pyrolysis (2.1 ) and partial gasification connected into the gasification reactor (2.2), that the reactor for pyrolysis (2.1 ) and partial gasification and reactor for gasification (2.2) contain melts of salts and further the reactors (2.1 ) and 2.2 are connected with a gas storage tank which is connected with a reactor (3) for power and heat generation.