摘要:
A process for hydrogenation of carbon oxides comprising contacting a gas mixture containing carbon oxides and of hydrogen with a catalyst comprising bimetallic iron-nickel or iron-cobalt alloys as the active catalytic material supported on a carrier of an oxide. The carrier is preferably formed to have a surface area greater than 20 m2/g.
摘要:
A process for hydrogenation of carbon oxides comprising contacting a gas mixture containing carbon oxides and of hydrogen with a catalyst comprising bimetallic iron-nickel or iron-cobalt alloys as the active catalytic material supported on a carrier of an oxide. The carrier is preferably formed to have a surface area greater than 20 m2/g.
摘要:
Provided is a catalyst including a mixture of metal A selected from Fe, Co and Ni, and metal B selected from Zn and Ga, and a support material, where the two metals are present in an intermetallic composition; A method for the manufacture of the catalyst; and the use of the catalyst for the selective hydrogenation of acetylene to ethylene in a gas mixture including acetylenic impurities and hydrogen, and one or more of ethylene and carbon monoxide. The catalyst has a high selectivity and is based an easily available metal compounds.
摘要:
An integrated process for the production of acetic acid, ethylene and vinyl acetate monomer comprising the steps of: (a) evaporating at least part of an ethanol feed stock (b) producing in a first reaction zone a first product stream comprising acetic acid by oxidative or partly oxidative dehydrogenation of ethanol feed stock; (c) producing in a second reaction zone a second product stream comprising ethylene from an ethanol feed stock; (d) reacting in a third reaction zone an acetic acid reaction stream containing at least a portion of the acetic acid from the first reaction zone with an ethylene reaction stream containing at least a portion of the ethylene product from the second reaction zone and with oxygen to a third product stream comprising vinyl acetate monomer; (e) passing at least a portion of the third product stream to a distillation section and isolating at least a portion of the vinyl acetate monomer; (f) supplying at least part of reaction heat from the third reaction zone to provide heat for evaporating at least part of the ethanol feed stock in step (a); (g) supplying at least part of reaction heat from the first reaction zone to provide heat for producing the second product stream in the second reaction zone in step (c) and for distilling of the third product stream in the distillation section in step (e).
摘要:
A method of storing and delivering ammonia and the use of electromagnetic radiation for desorption of ammonia from a chemical complex. Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NOx in exhaust gases. The compositional formula of the metal ammine complexes is M(NH3)nXz, where M2+ represents one or more metal ions capable of binding ammonia, X represents one or more anions, n is the coordination number (from 2 to 12), and z the valency of the metal ion (and thus the total number of compensating anion charges). Ammonia is released non-thermally by photon-activation using electromagnetic irradiation of the complex bond between ammonia coordinated to the metal ion
摘要翻译:一种储存和输送氨的方法,以及使用电磁辐射从化学络合物中解氨的方法。 应用固体金属氨络合物用于安全和高密度地储存氨,以用作废气中选择性催化还原NOx的还原剂。 金属络合物的组成式为M(NH 3)n X z,其中M 2 +表示一个或多个能结合氨的金属离子,X表示一个或多个阴离子,n为配位数(2至12),z为 金属离子的化合价(因此补偿阴离子电荷的总数)。 通过使用与金属离子配位的氨之间的复合键的电磁照射,通过光子激活而非热释放氨
摘要:
A process and reactor for the production of acetic acid comprising the steps of: passing a feed stream containing ethanol and water together with a predetermined feed rate of an oxygen containing atmosphere in presence of one or more catalysts being active in simultaneous non-oxidative and oxidative conversion of ethanol to a product stream with acetic acid; recovering from the product stream a stream of acetic acid; optionally recovering reactive derivatives of acetic acid and recycling these to step (a).
摘要:
A process for the catalytic alkylation of monocyclic aromatic compounds in a hydrocarbon process stream comprising contacting the monocyclic aromatic compound-containing hydrocarbon process stream with an alkylation agent under alkylation conditions with a mesoporous zeotype catalyst having an intracrystalline, non-crystallographic mesopore system and a mesopore volume of the zeotype crystals above 0.25 ml/g.
摘要:
Disclosed is a method for the selective catalytic reduction of NOx in waste/exhaust gas by using ammonia provides by heating one or more salts of formula Ma(NH3)nXz, wherein M represents one or more cations selected from alkaline earth metals and transition metals, X represents one or more anions, a represents the number of cations per salt molecule, z represents the number of anions per salt molecule, and n is a number of from 2 to 12, the one or more salts having been compressed to a bulk density above 70% of the skeleton density before use thereof.
摘要:
A process and reactor for the production of acetic acid comprising the steps of: passing a feed stream containing ethanol and water together with a predetermined feed rate of an oxygen containing atmosphere in presence of one or more catalysts being active in simultaneous non-oxidative and oxidative conversion of ethanol to a product stream with acetic acid; recovering from the product stream a stream of acetic acid; optionally recovering reactive derivatives of acetic acid and recycling these to step (a).
摘要:
A solid ammonia storage and delivery material comprising an ammonia absorbing/desorbing solid material, said storage and delivery material having been compacted to a density above 50% of the theoretic skeleton density provides a solid ammonia storage material which is easy to produce and handle and has a very high density of stored ammonia which is readily released under controlled conditions even though the porosity of the material is very low, and which storage material is safe for storage and transport of ammonia without special safety measures.