Systems and methods to produced branched aliphatic alcohols are described. Systems may include a dehydrogenation-isomerization unit, an olefin dimerization unit, an olefin isomerization unit, a hydroformylation unit, a dehydrogenation unit, a hydrogenation unit and/or combinations thereof. Methods for producing branched aliphatic alcohols may include isomerization of olefins in a process stream. The isomerized olefins may be hydroformylated to produce aliphatic alcohols. After hydroformylation of the aliphatic alcohols, unreacted components from the hydroformylation process may be separated from the aliphatic alcohols products. The unreacted components from the hydroformylation process may be recycled back into the main process stream or sent to other processing units. Addition of multiple streams to the units may be performed to control reaction conditions in the units.
A hydroformylation process comprising reacting a compound having at least one olefinic carbon-to-carbon bond with hydrogen and carbon monoxide in the presence of a cobalt catalyst, the hydroformylation process being carried out in one or more reactors, at least one of which comprises a gas cap region and a liquid-containing region while in use, characterized in that a sulphur-containing additive is present on the inside walls of the gas cap region of the at least one-reactor which comprises a gas cap region and a liquid-containing region. The sulphur-containing additive suppresses the formation of methane during the hydroformylation process.
Processes for the preparation of saturated alcohol derivatives and their use in detergent: plasticizer: and synthetic lubricant formulations
申请人:MOBIL OIL CORPORATION
公开号:EP0402051A2
公开(公告)日:1990-12-12
This invention relates to processes for making biodegradable surfactant. The process comprises several steps including an optional step. The first step is directed to reacting olefins with ZSM-23 catalyst to form oligomers having the formula (C₃)x, (C₄)x or mixtures thereof. Second, the oligomer is hydroformylated to form a saturated alcohol, for example, tridecanol. Next, the saturated alcohol is ethoxylated. Thereafter a nonionic biodegradable surfactant is recovered. This surfactant can be used in detergent formulations. A process is also taught for making esters which can be used as lubricants or plasticizers. A specific hydroformylation process is taught which utilizes modified cobalt carbonyl catalyst. Also, a specific ethoxylation process is taught. Products formed according to the latter two processes as well as their uses are also taught.
A process for preparing a branched olefin, a method of using the branched olefin for making a surfactant, and a surfactant
申请人:SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
公开号:EP1767512A2
公开(公告)日:2007-03-28
A process for preparing branched olefins, which process comprises dehydrogenating an isoparaffinic composition comprising 0.5% or less quaternary aliphatic carbon atoms over a suitable catalyst, which isoparaffinic composition comprises paraffins having a carbon number in the range of from 7 to 35, of which paraffins at least a portion of the molecules is branched, the average number of branches per paraffin molecule being from 0.7 to 2.5 and the branching comprising methyl and optionally ethyl branches, which isoparaffinic composition has been obtained by hydroisomerisation of a paraffinic wax, said branched olefins having a quaternary carbon content of 0.5% or less.
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines Treibstoffes für Verbrennungsmotoren, welches eine Fischer-Tropsch-Synthese und eine Hydroformylierung kombiniert. Die Erfindung betrifft ebenfalls einen durch das Verfahren erhältlichen Treibstoff sowie die Verwendung eines Stoffgemisches als Treibstoff für Verbrennungsmotoren. Das Produktgemisch aus der Fischer-Tropsch-Synthese weist einen Anteil von Olefinen mit 5 bis 10 Kohlenstoffatomen von ≥ 10 Gewichts-% bis ≤ 45 Gewichts-% auf. Nach Hydroformylierung/Reduktion wird ein Alkanole mit 6 bis 11 Kohlenstoffatomen enthaltender Treibstoff für Verbrennungsmotoren erhalten.