Abstract:
Method of removing metal carbonyls from a gaseous stream comprising contacting the metal carbonyl containing gaseous stream at elevated temperature with a particulate sorbent comprising modified copper aluminum spinel, wherein the copper aluminium spinel has been modified by a thermal treatment in a reducing atmosphere and a particulate sorbent for use in a method comprising a copper aluminium spinel being modified by thermal treatment in a reducing atmosphere at a temperature of between 250 and 500° C.
Abstract:
Process for the preparation of synthesis gas from an essentially dry hydrocarbon feedstock (1) comprising olefins, hydrogen and carbon monoxide, the process comprising the steps: (a) selectively hydrogenating the olefins in the hydrocarbon feedstock at a temperature between 60 to 190° C. (2) to obtain a hydrogenated hydrocarbon feedstock comprising hydrogen, carbon monoxide and saturated hydrocarbons (3; (b) adding steam (4) to the hydrogenated hydrocarbon feedstock; (c) performing a water gas shift reaction in the presence of steam on the hydrogenated hydrocarbon feedstock (6) to obtain a shifted, hydrogenated hydrocarbon mixture; (d) converting the shifted, hydrogenated hydrocarbon mixture (8) to obtain a synthesis gas.
Abstract:
Process for enriching a synthesis gas in hydrogen by conversion of carbon monoxide and steam over a catalyst containing oxides of zinc and aluminum together with one or more promoters.
Abstract:
A compression ignition fuel composition comprising diethyl ether (DEE) and water, in amounts that correspond to the reaction product of dehydration of anhydrous or hydrous ethanol (EtOH) with water content between 0 and 30 wt %, and further characterized by: a) a diethyl ether content in wt % that is larger than or equal to 50, and a water content in wt % that is lower than or equal to 50 minus concentration of ethanol in wt % for mixtures containing 0 to 20 wt % ethanol; or b) a diethyl ether content in wt % that is larger than or equal to 54 minus 0.2 times the ethanol concentration in wt %, and a water content in wt % that is lower than or equal to 46 minus the 0.8 times concentration of ethanol in wt % for mixtures containing 20 to 30 wt % ethanol; or c) a diethyl ether content in wt % that is larger than or equal to 61.5 minus 0.45 times the ethanol concentration in wt %, and a water content in wt % that is lower than or equal to 38.5 minus the 0.55 times concentration of ethanol in wt % for mixtures containing 30 to 70 wt % ethanol.
Abstract:
Process for the co-production of methanol and ammonia from a hydrocarbon feed without venting to the atmosphere carbon dioxide captured from the methanol or ammonia synthesis gas and without using expensive air separation units, water gas shift and carbon dioxide removal steps.
Abstract:
Process for the production of ammonia from a hydrocarbon feedstock all steam produced in the waste heat boilers of the reforming and ammonia section of the plant is superheated in one or more steam superheaters located downstream the ammonia converter in the ammonia section of the plant. There is no need for steam superheater (s) in the reforming section of the plant to cool the synthesis gas. A steam superheater for use in the process is also provided. The superheater comprises two compartments in which the first and second compartments are connected in series with respect to the steam flow and in parallel with respect to the process gas flow.
Abstract:
A process for the preparation of hydrocarbon products including the steps of (a) providing a stream containing oxygenates; (b) mixing the stream with a recycle stream to form a gasoline feed stream; (c) contacting the gasoline feed stream with one or more gasoline synthesis catalysts to obtain an effluent stream with higher hydrocarbons boiling in the gasoline range; (d) withdrawing from step (c) the effluent stream; and (e) splitting a part of the effluent stream to form the recycle stream which is optionally further reduced in content of water or enriched in hydrogen, then pressurized and recycled to step (b).
Abstract:
Catalyst for use in the high temperature shift reaction comprising in its active form a mixture of zinc alumina spinel and zinc oxide in combination with an alkali metal selected from the group consisting of Na, K, Rb, Cs and mixtures thereof.
Abstract:
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.
Abstract:
Process for the catalytic hydrotreating of a hydrocarbon feed stock containing silicon compounds comprising the steps of contacting the feed stock in presence of hydrogen with a first hydrotreating catalyst being arranged in at least two reactors being connected in series at an outlet temperature of up to 410° C. to reduce content of the silicon compounds in the feed stock; cooling of the feed stock such treated to a temperature of between 280° and 350° C.; and contacting the cooled feed stock with a second hydrotreating catalyst at conditions being effective in reduction of sulphur compound and nitrogen compound concentration.