摘要:
Disclosed are hybrid Fischer-Tropsch catalysts containing cobalt deposited on hybrid supports. The hybrid supports contain an acidic zeolite component and a silica-containing material. It has been found that the use of the hybrid Fischer-Tropsch catalysts in synthesis gas conversion reactions results in high C5+ productivity, high CO conversion rates and low olefin formation.
摘要:
The invention relates to use of a catalyst comprising particles of nickel dispersed in a porous silica matrix for catalysing a methanation reaction. There is also described a method for methanation of a feedstock at least comprising gases carbon monoxide and hydrogen, said method comprising contacting the feedstock with the catalyst.
摘要:
The present invention relates to a method for preparing liquid or solid hydrocarbons from syngas via the Fischer-Tropsch synthesis in the presence of iron-based catalysts, the iron-based catalysts for the use thereof, and a method for preparing the iron-based catalysts; more specifically, in the Fischer-Tropsch reaction, liquid or solid hydrocarbons may be prepared specifically with superior productivity and selectivity for C5+ hydrocarbons using the iron-based catalysts comprising iron hydroxide, iron oxide, and iron carbide wherein the number of iron atoms contained in the iron hydroxide is 30% or higher, and the number of iron atoms contained in the iron carbide is 50% or lower, relative to 100% of the number of iron atoms contained in the iron-based catalysts.
摘要:
The presently-disclosed subject matter includes methods for producing liquid hydrocarbons from syngas. In some embodiments the syngas is obtained from biomass and/or comprises a relatively high amount of nitrogen and/or carbon dioxide. In some embodiments the present methods can convert syngas into liquid hydrocarbons through a one-stage process. Also provided are catalysts for producing liquid hydrocarbons from syngas, wherein the catalysts include a base material, a transition metal, and a promoter. In some embodiments the base material includes a zeolite-iron material or a cobalt-molybdenum carbide material. In still further embodiments the promoter can include an alkali metal.
摘要:
The invention relates to a catalyst suitable for use in the hydrogenation of carbon dioxide-containing gas, said catalyst comprising spinel phase of the formula [Fe2+(Fe3+yAl3+1-y)2O4]. Processes for preparing the catalyst and processes for the hydrogenation of carbon dioxide-containing gas in the presence of the catalyst are also disclosed.
摘要翻译:本发明涉及适用于二氧化碳气体氢化的催化剂,所述催化剂包含式[Fe 2+(Fe 3+ yAl 3+ 1-y)2 O 4]的尖晶石相。 还公开了在催化剂存在下制备催化剂的方法和含二氧化碳气体的氢化方法。
摘要:
A process for producing distillate fuels, such as a diesel fuel, from a syngas feedstream having a relatively low H2/CO ratio of greater than 1 and equal to or less than 2.0. The syngas feedstream is preferably passed to a CO2 removal zone, then to at least one Fischer-Tropsch zone, wherein the resulting Fischer-Tropsch product stream is passed to a separation zone to obtain a hydrocarbon-containing fraction that is hydroconverted to result in a distillate boiling range stream.
摘要:
A method of forming a hydrocarbon product, the method comprising a first step of enriching a carrier liquid with carbon monoxide and hydrogen and a subsequent step of bringing the enriched carrier liquid into contact with a catalyst in a first reaction zone of a reactor, wherein the catalyst catalyses reaction of the carbon monoxide and hydrogen to form the hydrocarbon product.
摘要:
A process to prepare middle distillates products is provided. The process includes providing and separating a feed stream into a natural gas feed stream and a condensate feed stream; preparing a mixture of carbon monoxide and hydrogen from the natural gas feed stream; preparing a paraffin product stream by performing a Fischer-Tropsch reaction using the carbon monoxide and hydrogen; separating the paraffin product stream to obtain heavy Fischer-Tropsch and light Fischer-Tropsch product streams; hydrogenating and separating the light Fischer-Tropsch product stream to obtain first, second and third hydrogenated paraffinic product fractions; subjecting the heavy Fischer-Tropsch product stream, the third hydrogenated paraffin product fraction and the condensate stream to hydrocracking/hydroisomerization to obtain an isomerised Fischer-Tropsch product stream; combining the isomerised Fischer-Tropsch product stream with the first hydrogenated paraffin product fraction to provide a distillate feed stream and distilling the distillate feed stream to provide isolated middle distillate products.
摘要:
An alternative process and device for carrying out Fischer Tropsch (FT) syntheses is proposed, allowing the reactant entities that take part in the FT reaction to be activated and their contributions, whether by quantity or by proportion, to be adjusted. The process consists in making a particulate phase, optionally consisting of catalytic particles, flow through a reactor. While flowing through the reactor, the particulate phase is subjected at regular intervals to the action of a plasma obtained from a gas, such as hydrogen, thus enabling hydrogen activation for hydrogenation of carbon monoxide, or carbon monoxide activation in order to lengthen the carbon chains.
摘要:
A process and system are described for producing a synthetic crude oil by contacting a synthesis gas with a combination of a synthesis gas conversion catalyst and a hydroconversion catalyst in a synthesis gas reactor. The synthesis gas can be obtained from gas associated with crude oil production, i.e., associated gas, in a synthesis gas generator. The synthetic crude oil can be blended with a natural crude oil to produce a blended stabilized crude oil having 2 wt % or more of the synthetic crude oil. The resulting blended stabilized crude oil has improved flow characteristics including a pour point of 30° C. or less.