-
公开(公告)号：NO161039B
公开(公告)日：1989-03-20
申请号：NO840862
申请日：1984-03-07
Applicant: BASF AG
Inventor： WAGNER ECKHART , VOLKAMER KLAUS , HEFNER WERNER , WAGNER ULRICH
Abstract: CO2 and/or H2S are removed from gases which contain CO2 and/or H2S by means of an aqueous absorption liquid containing an alkanolamine, by a process wherein the said gas is treated, in an absorption stage, at from 40 DEG to 100 DEG C., with an aqueous absorption liquid containing from 20 to 70% by weight of methyldiethanolamine, the treated gas is taken off at the top of the absorption stage, the aqueous absorption liquid laden with CO2 and/or H2S is taken off at the bottom of this stage and is regenerated by being let down in two or more flash stages, and the final flash stage is operated under reduced pressure and the regenerated absorption liquid is recycled to the absorption stage.
-
公开(公告)号：NO159519C
公开(公告)日：1989-01-11
申请号：NO833565
申请日：1983-09-30
Applicant: BASF AG
Inventor： WAGNER ECKHART , VOLKAMER KLAUS , WAGNER ULRICH
-
公开(公告)号：NO159474B
公开(公告)日：1988-09-26
申请号：NO833566
申请日：1983-09-30
Applicant: BASF AG
Inventor： VOLKAMER KLAUS , WAGNER ECKHART , WAGNER ULRICH
-
公开(公告)号：NO155444B
公开(公告)日：1986-12-22
申请号：NO821058
申请日：1982-03-30
Applicant: BASF AG
Inventor： WAGNER ECKHART , WAGNER ULRICH , VOLKAMER KLAUS , VODRAZKA WOLFGANG
Abstract: A process for removing condensable aliphatic hydrocarbons and acidic gases such as H2S, CO2 and COS from natural gas containing these, wherein the natural gas is initially treated with polyethylene glycol dialkyl ethers, as the solvent, in a first absorption stage to effect absorption of the condensable aliphatic hydrocarbons; the natural gas drawn off from the first absorption stage is then treated with polyethylene glycol dialkyl ethers, as the solvent, under superatmospheric pressure in a second absorption stage, the acidic gases being completely or partly absorbed; the solvent charged with the condensable aliphatic hydrocarbons which is obtained from the first absorption stage is treated with water in an extraction stage, to form a hydrocarbon phase containing the condensable aliphatic hydrocarbons and an aqueous dialkyl ether phase, and the hydrocarbon phase is separated from the aqueous dialkyl ether phase. The solvent charged with acid gases which is obtained from the second absorption stage is regenerated by expansion and/or stripping in a regeneration stage and the regenerated solvent is recycled to the absorption.
-
公开(公告)号：BR8501416A
公开(公告)日：1985-11-26
申请号：BR8501416
申请日：1985-03-28
Applicant: BASF AG
Inventor： VOLKAMER KLAUS , HEFNER WERNER , WAGNER ECKHART , WAGNER ULRICH
IPC: B01D53/14
Abstract: 1. A process for removing CO2 and/or H2 S from a gas containing CO2 and/or H2 S by washing the gas with an aqueous alkanolamine-containing absorption liquid and subsequently regenerating the latter, wherein the aqueous absorption liquid used contains from 3 to 60% by weight of methyldiethanolamine and from 1 to 50% by weight of monoethanolamine, processes with two absorption stages arranged in series, in which regeneration of the laden absorption liquid is carried out using two flash stages and a stripping zone, to the extent they utilize an absorption liquid containing from 0.05 to 1 mole of monoethanolamine per litre, being excluded.
-
Patent Agency Ranking
公开(公告)号：NO833566L
公开(公告)日：1984-04-03
申请号：NO833566
申请日：1983-09-30
Applicant: BASF AG
Inventor： VOLKAMER KLAUS , WAGNER ECKHART , WAGNER ULRICH
-
公开(公告)号：CA1133951A
公开(公告)日：1982-10-19
申请号：CA346105
申请日：1980-02-19
Applicant: BASF AG
Inventor： LINDNER ALFRED , VOLKAMER KLAUS , WAGNER ULRICH
Abstract: O.Z, 0050/033686 of the disclosure: A process for isolating isobutene from C4-hydrocarbon mixtures containing isobutene by reacting the mixture with a primary alcohol in the presence of an acid condensing agent, to form the tertiary ether, separating off the unconverted hydrocarbons and decomposing the tertiary ether in the presence of an acid catalyst at an elevated temperature, wherein a primary C3- or C4-alcohol is used and the temperature at which?the reaction.mixture leaves the etherification stage, in which the tertiary ether is formed, is lower than the mean temperature in the etherification stage.
-
公开(公告)号：NO145433B
公开(公告)日：1981-12-14
申请号：NO761220
申请日：1976-04-08
Applicant: BASF AG
Inventor： WEITZ HANS-MARTIN , WAGNER ULRICH , VOLKAMER KLAUS , SCHUBERT ECKART , BANDERMANN FRIEDHELM
-
公开(公告)号：CA1090098A
公开(公告)日：1980-11-25
申请号：CA264022
申请日：1976-10-21
Applicant: BASF AG
Inventor： APPL MAX , WAGNER ULRICH , HENRICI HANS J , KUESSNER KLAUS , VOLKAMER KLAUS , FUERST ERNST
Abstract: In a process for removing CO2 or H2S or both from gases which contain said constituents by washing the gases with an aqueous solution of a scrubbing liquid and subsequently regenerating the scrubbing liquid, the improvement which comprises: using a scrubbing liquid which contains up to 0.8 mole/l of piperazine as an absorption accelerator and at least one solvent of the group of chemical solvents in an amount of 1.5 to 4.5 moles/l, wherein that chemical solvent is selected from the group consisting of aminocarboxylic acids, potassium hydroxide and alkanolamines. The washing process is used for natural gases, coke-oven gases, gases from the gasification of coal and synthesis gases, of any origin.
-
公开(公告)号：CA1058228A
公开(公告)日：1979-07-10
申请号：CA246510
申请日：1976-02-24
Applicant: BASF AG
Inventor： WEITZ HANS-MARTIN , WAGNER ULRICH , VOLKAMER KLAUS , SCHUBERT ECKART , BANDERMANN FRIEDHELM
Abstract: 1,3-Butadiene is recovered with the aid of a selective solvent from a C4-hydrocarbon mixture containing 1,3-butadiene, hydrocarbons which are more soluble in said selective solvent than 1,3-butadiene, including acetylenes and possibly 1,2-butadiene and C5-hydrocarbons, and hydrocarbons which are less soluble in said selective solvent than 1,3-butadiene. The C4hydrocarbon mixture is separated by the use of one or more extractive distilling zones into 8 distillate containing the less soluble hydrocarbons, a stream consisting of 1,3-butadiene and a stream containing the more soluble hydrocarbons including the higher acetylenes and 1,3-butadiene, the latter stream being subjected to catalytic hydrogenation.
-
-
-
-
-
-
-
-
-
Search Results
63
records
(took 0.047 seconds)
