Patents by Inventor Herald Jachow
Herald Jachow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8580208Abstract: The present invention describes a reactor (1) for continuously preparing hydrogen sulfide H2S from hydrogen and sulfur, comprising a distributor device (15) for distributing gaseous hydrogen in a sulfur melt (9) present at least in a lower part of the reactor. The distributor device (15) is arranged in the sulfur melt (9) and comprises a distributor plate (16) which is arranged in the reactor (1) and has an edge (17) extending downward and, if appropriate, has passage orifices (19). The hydrogen from a hydrogen bubble which forms below the distributor plate (16) is (for example through the passage orifices (19)) distributed in the sulfur melt (9) via the distributor plate (16).Type: GrantFiled: December 9, 2010Date of Patent: November 12, 2013Assignee: BASF SEInventors: Andreas Woelfert, Herald Jachow, Heinz Driess
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Patent number: 8021624Abstract: The invention relates to a reactor (1) and a process for continuously preparing H2S by converting a reactant mixture which comprises essentially gaseous sulfur and hydrogen over a catalyst, comprising a sulfur melt (9) at least in a lower subregion (8) of the reactor (1), into which gaseous hydrogen is introduced. The catalyst is arranged in at least one U-shaped tube (21) which is partly in contact with the sulfur melt (9), the at least one U-shaped tube (21) having at least one entry orifice (23) on a limb (26) above the sulfur melt (9), through which the reactant mixture can enter the U-shaped tube (21) from a reactant region (10) of the reactor (1), having a flow path within the at least one U-shaped tube, along which the reactant mixture can be converted in a reaction region comprising the catalyst (22), and having at least one exit orifice (24) in another limb (27) through which a product can exit into a product region (7).Type: GrantFiled: January 14, 2008Date of Patent: September 20, 2011Assignee: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Drieβ
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Patent number: 7887777Abstract: Hydrogen sulfide H2S is prepared from a crude gas stream containing H2S and polysulfanes (H2Sx). The crude gas stream is passed at temperatures of from 114 to 165° C. through catalytically active material present in a vessel, and sulfur is collected in the bottom of the vessel and recycled to the preparation of H2S. This process may be accomplished in an apparatus including a reactor for reacting sulfur and hydrogen, a cooler for receiving and cooling an H2S-containing crude gas stream passed out of the reactor to between 114 to 165° C., a vessel coupled to the cooler, the vessel including catalytically active material and a bottom for collecting sulfur obtained from the crude gas stream, and a line which is connected to the bottom of the vessel and opens into the cooler or into the reactor, for recycling sulfur.Type: GrantFiled: January 15, 2008Date of Patent: February 15, 2011Assignee: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Drieβ
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Patent number: 7871594Abstract: The present invention describes a reactor (1) for continuously preparing hydrogen sulfide H2S from hydrogen and sulfur, comprising a distributor device (15) for distributing gaseous hydrogen in a sulfur melt (9) present at least in a lower part of the reactor. The distributor device (15) is arranged in the sulfur melt (9) and comprises a distributor plate (16) which is arranged in the reactor (1) and has an edge (17) extending downward and, if appropriate, has passage orifices (19). The hydrogen from a hydrogen bubble which forms below the distributor plate (16) is (for example through the passage orifices (19)) distributed in the sulfur melt (9) via the distributor plate (16).Type: GrantFiled: January 10, 2008Date of Patent: January 18, 2011Assignee: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Drieβ
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Patent number: 7833509Abstract: The invention relates to a process and to an apparatus for preparing hydrogen sulfide H2S by converting a reactant mixture which comprises gaseous sulfur and hydrogen over a solid catalyst. The reactant mixture is converted at a pressure of from 0.5 to 10 bar absolute, a temperature of from 300 to 450° C. and a sulfur excess in a reactor (1). The sulfur excess corresponds to a ratio of excess sulfur to H2S prepared of from 0.2 to 3 kg of sulfur per kg of H2S prepared.Type: GrantFiled: January 14, 2008Date of Patent: November 16, 2010Assignee: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Drieβ
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Publication number: 20100068128Abstract: The invention relates to a reactor (1) and a process for continuously preparing H2S by converting a reactant mixture which comprises essentially gaseous sulfur and hydrogen over a catalyst, comprising a sulfur melt (9) at least in a lower subregion (8) of the reactor (1), into which gaseous hydrogen is introduced. The catalyst is arranged in at least one U-shaped tube (21) which is partly in contact with the sulfur melt (9), the at least one U-shaped tube (21) having at least one entry orifice (23) on a limb (26) above the sulfur melt (9), through which the reactant mixture can enter the U-shaped tube (21) from a reactant region (10) of the reactor (1), having a flow path within the at least one U-shaped tube, along which the reactant mixture can be converted in a reaction region comprising the catalyst (22), and having at least one exit orifice (24) in another limb (27) through which a product can exit into a product region (7).Type: ApplicationFiled: January 14, 2008Publication date: March 18, 2010Applicant: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Driess
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Publication number: 20100015036Abstract: The present invention describes a reactor (1) for continuously preparing hydrogen sulfide H2S from hydrogen and sulfur, comprising a distributor device (15) for distributing gaseous hydrogen in a sulfur melt (9) present at least in a lower part of the reactor. The distributor device (15) is arranged in the sulfur melt (9) and comprises a distributor plate (16) which is arranged in the reactor (1) and has an edge (17) extending downward and, if appropriate, has passage orifices (19). The hydrogen from a hydrogen bubble which forms below the distributor plate (16) is (for example through the passage orifices (19)) distributed in the sulfur melt (9) via the distributor plate (16).Type: ApplicationFiled: January 10, 2008Publication date: January 21, 2010Applicant: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Driess
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Publication number: 20100008839Abstract: The invention relates to a process and to an apparatus for continuously preparing hydrogen sulfide H2S, polysulfanes (H2Sx) being present in an H2S-containing crude gas stream obtained in the preparation. The crude gas stream is passed at temperatures of from 114 to 165° C. through catalytically active material (41) present in a vessel (42), and sulfur obtained here is collected in the bottom (43) of the vessel (42) and recycled to the preparation of H2S. The inventive apparatus comprises a reactor (1) for reacting sulfur and hydrogen, a cooler (40) connected to the reactor (1) for cooling an H2S-containing crude gas stream passed out of the reactor (1) to from 114 to 165° C., a vessel (42) which is connected to the cooler (40), comprises catalytically active material (41) and has a bottom (43) for collecting sulfur obtained from the crude gas stream comprising polysulfanes in the vessel (42) at from 114 to 165° C.Type: ApplicationFiled: January 15, 2008Publication date: January 14, 2010Applicant: BASF SEInventors: Andreas Wölfert, Herald Jachow, Heinz Driess
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Publication number: 20090317322Abstract: The invention relates to a process and to an apparatus for preparing hydrogen sulfide H2S by converting a reactant mixture which comprises gaseous sulfur and hydrogen over a solid catalyst. The reactant mixture is converted at a pressure of from 0.5 to 10 bar absolute, a temperature of from 300 to 450° C. and a sulfur excess in a reactor (1). The sulfur excess corresponds to a ratio of excess sulfur to H2S prepared of from 0.2 to 3 kg of sulfur per kg of H2S prepared.Type: ApplicationFiled: January 14, 2008Publication date: December 24, 2009Applicant: BASE SEInventors: Andreas Wölfert, Herald Jachow, Heinz Driess