摘要:
This invention relates to a process for making methanol and ethanol from carbon dioxide and hydrogen. The process includes contacting a mixture of carbon dioxide and hydrogen with a catalyst system containing a ruthenium compound — and optionally, a chloride or bromide-containing compound — dispersed in a low-melting tetraorganophosphonium chloride or bromide salt under conditions effective to produce methanol and ethanol. The invention also relates to a process for making methanol and ethanol from carbon monoxide and water using the same catalyst system.
摘要:
Methods for producing alcohols from CO or CO2 and H2 utilizing a palladium- zinc on alumina catalyst are described. Methods of synthesizing alcohols over various catalysts in microchannels are also described. Ethanol, higher alcohols, and other C2+ oxygenates can produced utilizing Rh-Mn or a Fisher-Tropsch catalyst.
摘要:
The present invention relates to processes for the reduction by hydrogenation, using molecular H 2 , of a C 5 -C 20 substrate containing one or two aldehydes functional groups into the corresponding alcohols or diol, characterized in that said process is carried out in the presence of - at least one catalyst or pre-catalyst in the form of a ruthenium complex having a coordination sphere of the N 1 P 3 O 2 , wherein the coordinating atom N and one coordinating atom P are provided by a first bidentate ligand, and the two other coordinating atoms P 2 are provided by a second bidentate ligand and the coordinating atoms O 2 are provided by two non- linear carboxylate ligands; and - optionally of an acidic additive.
摘要翻译:本发明涉及使用分子H 2将含有一个或两个醛官能团的C 5 -C 20底物氢化成相应的醇或二醇的还原方法,其特征在于所述方法在存在 - 至少一种钌配合物形式的具有N 1 P 3 O 2配位球的催化剂或预催化剂,其中配位原子N和一个配位原子P由第一双齿配位体提供,另外两个配位原子 配位原子P 2由第二双齿配位体提供,并且配位原子O 2由两个非直链羧酸根配体提供; 和 - 任选的酸性添加剂。
摘要:
Use a transition metal-containing, Keggin-type heteropoly compound as a catalyst to convert synthesis gas to an alcohol, especially a C 1 - C 6 alcohol.
摘要:
For the reaction of CO and H₂ to produce hydro carbons and alcohols, catalysts prepared by depositing carbonyls of molybdenum or tungsten and rhodium or ruthenium on alumina support and decomposing and oxidizing the carbonyls to oxides of the metals on the support.
摘要:
Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceeding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.
摘要:
The present invention relates to an apparatus for producing alcohols from olefins, comprising: a hydroformylation reactor wherein aldehydes are produced from olefins; a catalyst/aldehydes separator; a hydrogenation reactor wherein the aldehydes are hydrogenated to produce alcohols; and a distillation column. The hydroformylation reactor is equipped with a distributor plate, which has a broad contact surface for providing sufficient reaction area for reactants such as olefins and synthesis gas, and allows the reaction mixture to circulate and mix sufficiently, which contribute to excellent efficiency in terms of production of aldehydes. In addition, the hydrogenation reactor suppresses sub-reactions to improve the production yield of alcohols.
摘要:
Disclosed are catalysts comprising copper chromite, ruthenium and at least one promoter selected from alkali metals, alkaline earth metals, rare earth elements having hydrogenation activity. The combination of copper chromite with ruthenium and the alkali, alkaline earth, and/or rare earth elements enhances catalyst activity more than the addition of either type of promoter alone. The catalysts are useful for the preparation of methanol from carbon monoxide and hydrogen and for the hydrogenation of carbonyl compounds such as, for example, aldehydes, ketones, and esters, to their corresponding alcohols. The catalysts may be used for the preparation of cyclohexanedimethanols from dialkyl cyclohexanedicarboxylates or of ethylene glycol from alkyl glycolates.