Patent application number | Description | Published |
20140018588 | ISOMERIZATION PROCESS FOR HYDROCARBONS WITH RECYCLING OF HYDROGEN HALIDES - The present invention relates to a process for isomerizing at least one hydrocarbon in the presence of an acidic ionic liquid and at least one hydrogen halide (HX) in an apparatus (V | 01-16-2014 |
20140018595 | PROCESS FOR REMOVING HYDROGEN HALIDES IN A RECTIFYING COLUMN WITH A PARTIAL CONDENSER - The present invention relates to a process for treating an output from a chemical reaction, wherein the chemical reaction is performed in the presence of an ionic liquid. The chemical reaction is preferably an isomerization. In a rectifying column with a partial condenser, the hydrogen halide is drawn off from a mixture which originates from the chemical reaction and comprises at least one organic compound, preferably at least one hydrocarbon, and at least one hydrogen halide. | 01-16-2014 |
20140024875 | PROCESS FOR TREATING AN OUTPUT FROM A HYDROCARBON CONVERSION WITH REMOVAL OF HYDROGEN HALIDES AND SUBSEQUENT WASH - The present invention relates to a process for treating an output from a hydrocarbon conversion, wherein the hydrocarbon conversion is performed in the presence of an acidic ionic liquid. The hydrocarbon conversion is preferably an isomerization. First of all, the hydrogen halide is drawn off in an apparatus from a mixture which originates from the hydrocarbon conversion and comprises at least one hydrocarbon and at least one hydrogen halide, and then the mixture depleted of hydrogen halide is subjected to a wash. | 01-23-2014 |
20140114099 | PROCESS FOR PREPARING CYCLOHEXANE WITH STARTING MATERIALS ORIGINATING FROM A STEAMCRACKING PROCESS - The present invention relates to a process for preparing cyclohexane by isomerizing a hydrocarbon mixture (HM | 04-24-2014 |
20140114103 | PROCESS FOR PREPARING CYCLOHEXANE COMPRISING A PRIOR REMOVAL OF DIMETHYLPENTANES - The present invention relates to a process for preparing cyclohexane from benzene and/or methylcyclopentane (MCP) by hydrogenation or isomerization. Prior to the cyclohexane preparation, the dimethylpentanes (DMP) are removed in a distillation apparatus (D1) from a hydrocarbon mixture (HM1) comprising not only benzene and/or MCP but also DMP. If cyclohexane is already present in the hydrocarbon mixture (HM1), this cyclohexane is first removed together with DMP from benzene and/or MCP. This cyclohexane already present can be separated again from DMP in a downstream distillation step and recycled into the process for cyclohexane preparation. | 04-24-2014 |
20140128648 | HYDROCARBON CONVERSION PROCESS IN THE PRESENCE OF AN ACIDIC IONIC LIQUID WITH UPSTREAM HYDROGENATION - The present invention relates to a process for hydrocarbon conversion in the presence of an acidic ionic liquid. The hydrocarbon conversion is preferably an isomerization, especially an isomerization of methylcyclopentane (MOP) to cyclohexane. Prior to the hydrocarbon conversion, a hydrogenation is performed, preference being given to hydrogenating benzene to cyclohexane. The cyclohexane obtained in the hydrogenation and/or isomerization is preferably isolated from the process. In a preferred embodiment of the present invention, the hydrogenation is followed and the hydrocarbon conversion, especially the isomerization, is preceded by distillative removal of low boilers, especially C | 05-08-2014 |
Patent application number | Description | Published |
20100192770 | CYCLIC-AMINE-COMPRISING ABSORPTION MEDIUM FOR REMOVING ACID GASES - An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low CO | 08-05-2010 |
20100319540 | REMOVAL OF ACID GASES BY MEANS OF AN ABSORBENT COMPRISING A STRIPPING AID - A process for removing acid gases from a fluid stream in which a) the fluid stream is treated with an absorption liquid which comprises at least one amine, a stripping aid, and water, wherein the stripping aid is selected from water-miscible liquids, the boiling temperature of which at atmospheric pressure is lower than that of water, b) the treated fluid stream is treated with a liquid aqueous phase in order to convert entrained stripping aid at least in part to the aqueous phase, c) the loaded aqueous phase is heated in order to expel the stripping aid at least in part, and d) the regenerated aqueous phase is cooled and at least in part recycled to step b). The stripping aid promotes the regeneration of the absorbent by stripping. Emissions of the stripping aid via the treated fluid stream are avoided by the treated fluid stream being scrubbed with a liquid aqueous phase. | 12-23-2010 |
20110094381 | ABSORPTION MEDIUM AND METHOD FOR REMOVING SOUR GASES FROM FLUID STREAMS, IN PARTICULAR FROM FLUE GASES - Absorption medium for acid gases comprising an oligoamine (A) of the general formula (I) | 04-28-2011 |
20110135549 | ABSORPTION MEDIUM AND METHOD FOR REMOVING SOUR GASES FROM FLUID STREAMS, IN PARTICULAR FROM FLUE GASES - Absorption medium for acid gases comprising an oligoamine (A) of the general formula (I) | 06-09-2011 |
20140079613 | CYCLIC-AMINE-COMPRISNG ABSORPTION MEDIUM FOR REMOVING ACID GASES - An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low CO | 03-20-2014 |