Patents by Inventor Kai Rainer Ehrhardt
Kai Rainer Ehrhardt 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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Publication number: 20240075423Abstract: The present invention relates a process for separating H2, preferably both H2 and CH4, from a gas mixture comprising H2 and CH4 by means of a series of selective membrane units that avoids compressors and vacuums as well as an apparatus for carrying out said separation.Type: ApplicationFiled: November 26, 2021Publication date: March 7, 2024Inventors: Paul-Vinzent STROBEL, Emiel Jan KAPPERT, Kai Rainer EHRHARDT, Juergen Jose VARGAS SCHMITZ, Martin GALL
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Patent number: 9580312Abstract: The invention relates to a continuous method for producing acetylenes and syngas by partially oxidizing hydrocarbons with oxygen. A first feed stream (1) containing one or more hydrocarbons and a second feed stream (2) containing oxygen are —mixed in a ratio of the mass flows of the second feed stream (2) to the first feed stream (1) corresponding to an oxygen number of less than or equal to 0.31, said streams being heated separately from each other, —and fed to a combustion chamber (FR) via a burner block (BR), the partial oxidation of the hydrocarbons being carried out in said combustion chamber, —thereby obtaining a first cracked gas stream Ig. The invention is characterized in that —the first cracked gas stream Ig is precooled to a temperature ranging from 100 to 1000° C.Type: GrantFiled: January 15, 2014Date of Patent: February 28, 2017Assignee: BASF SEInventors: Maximilian Vicari, Christian Weichert, Dirk Grossschmidt, Michael Russ, Kai Rainer Ehrhardt, Horst Neuhauser, Michael L. Hayes
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Publication number: 20150336858Abstract: The invention relates to a continuous method for producing acetylenes and syngas by partially oxidizing hydrocarbons with oxygen. A first feed stream (1) containing one or more hydrocarbons and a second feed stream (2) containing oxygen are mixed in a ratio of the mass flows of the second feed stream (2) to the first feed stream (1) corresponding to an oxygen number of less than or equal to 0.31, said streams being heated separately from each other, and fed to a combustion chamber (FR) via a burner block (BR), the partial oxidation of the hydrocarbons being carried out in said combustion chamber, thereby obtaining a first cracked gas stream Ig. The invention is characterized in that the first cracked gas stream Ig is precooled to a temperature ranging from 100 to 1000° C.Type: ApplicationFiled: January 15, 2014Publication date: November 26, 2015Applicant: BASF SEInventors: Maximilian VICARI, Christian WEICHERT, Dirk GROSSSCHMIDT, Michael RUSS, Kai Rainer EHRHARDT, Horst NEUHAUSER, Michael L. HAYES
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Patent number: 8597546Abstract: The present invention provides a process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the starting gases comprising a hydrocarbon-containing stream and an oxygen-containing stream and then mixing them in a mixing zone and, after they have flowed through the burner block, reacting them in the firing space and then cooling the products rapidly, wherein the surface on the firing space side of the burner block is covered with a purge gas stream and this purge gas stream is introduced through the burner block by means of several bores, where the averaged ratio of effective surface area of the burner block to number of these bores in the burner block for the purge gas stream is within a range from 5 to 100 cm2.Type: GrantFiled: November 9, 2011Date of Patent: December 3, 2013Assignee: BASF SEInventors: Michael Russ, Dirk Grossschmidt, Peter Renze, Maximilian Vicari, Horst Neuhauser, Kai Rainer Ehrhardt, Christian Weichert
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Patent number: 8506924Abstract: A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the hydrocarbon gas and oxygen gas, and then reacting the gases and cooling the products rapidly. The reactor wall is blanketed with a purge gas stream, introduced through a plurality of feed lines. These feed lines deliver purge gas in a vector direction within a 10° angle of the main flow direction of the reactive gas stream. The purge gas is delivered at multiple stages relative to the main flow direction of the reactive gas stream, and the free cross section of the firing space available to the reactive gas stream, at the height of the feed lines of the purge gas stream, is approximately constant.Type: GrantFiled: November 9, 2011Date of Patent: August 13, 2013Assignee: BASF SEInventors: Dirk Grossschmidt, Michael Russ, Peter Renze, Maximilian Vicari, Christian Weichert, Kai Rainer Ehrhardt, Horst Neuhauser, Hans Zapf, Michael L. Hayes
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Patent number: 8487150Abstract: In the process for hydrogenating butadiyne over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as a support, the hydrogenation is performed at a pressure in the range from 1 to 40 bar and a temperature in the range from 0 to 100° C., and from 0.05 to 5% by weight, based on the overall catalyst, of platinum group metal is present on the support.Type: GrantFiled: June 16, 2009Date of Patent: July 16, 2013Assignee: BASF SEInventors: Lucia Koenigsmann, Ekkehard Schwab, Piotr Makarczyk, Kai Rainer Ehrhardt, Maximilian Vicari, Thomas Heidemann, Dirk Grossschmidt, Gerrit Waters
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Publication number: 20120119150Abstract: A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the hydrocarbon gas and oxygen gas, and then reacting the gases and cooling the products rapidly. The reactor wall is blanketed with a purge gas stream, introduced through a plurality of feed lines. These feed lines deliver purge gas in a vector direction within a 10° angle of the main flow direction of the reactive gas stream. The purge gas is delivered at multiple stages relative to the main flow direction of the reactive gas stream, and the free cross section of the firing space available to the reactive gas stream, at the height of the feed lines of the purge gas stream, is approximately constant.Type: ApplicationFiled: November 9, 2011Publication date: May 17, 2012Applicant: BASF SEInventors: Dirk GROßSCHMIDT, Michael Russ, Peter Renze, Maximilian Vicari, Christian Weichert, Kai Rainer Ehrhardt, Horst Neuhauser, Hans Zapf, Michael L. Hayes
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Publication number: 20120119149Abstract: The present invention provides a process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the starting gases comprising a hydrocarbon-containing stream and an oxygen-containing stream and then mixing them in a mixing zone and, after they have flowed through the burner block, reacting them in the firing space and then cooling the products rapidly, wherein the surface on the firing space side of the burner block is covered with a purge gas stream and this purge gas stream is introduced through the burner block by means of several bores, where the averaged ratio of effective surface area of the burner block to number of these bores in the burner block for the purge gas stream is within a range from 5 to 100 cm2.Type: ApplicationFiled: November 9, 2011Publication date: May 17, 2012Applicant: BASF SEInventors: Michael RUSS, Dirk Grossschmidt, Peter Renze, Maximilian Vicari, Horst Neuhauser, Kai Rainer Ehrhardt, Christian Weichert
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Patent number: 8173853Abstract: A process is proposed for continuously operating a plant for preparing acetylene from hydrocarbons by partial oxidation, cleavage in an arc or pyrolysis of hydrocarbons to obtain a reaction gas mixture which is conducted through one or more compressors, the pressure of the reaction gas mixture on the suction side of the compressor being controlled within a predefined range by means of a conventional controller, which comprises additionally using a higher-level model-supported predictive controller which reacts to abrupt changes in the mass flow rate of the reaction gas mixture.Type: GrantFiled: April 4, 2007Date of Patent: May 8, 2012Assignee: BASF SEInventors: Kai Rainer Ehrhardt, Raymond Poche, William R. Scullin, Michael L. Hayes
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Patent number: 8017823Abstract: A process is proposed for continuously operating a plant for preparing acetylene from hydrocarbons by partial oxidation, cleavage in an arc or pyrolysis of hydrocarbons to obtain a reaction gas mixture which is conducted through one or more compressors, the pressure of the reaction gas mixture on the suction side of the compressor being controlled within a predefined range by means of a conventional controller, which comprises additionally using a high-level model-supported predictive controller which reacts to abrupt changes in the mass flow rate of the reaction gas mixture.Type: GrantFiled: April 11, 2006Date of Patent: September 13, 2011Assignee: BASF, SEInventors: Kai Rainer Ehrhardt, Raymond Poche, William R. Scullin, Michael L. Hayes
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Patent number: 7956228Abstract: A process for the preparation of acetylene and synthesis gas by partial thermal oxidation in a reactor which has a burner having passages, wherein the starting materials to be reacted are rapidly and completely mixed only immediately before the flame reaction zone in the passages of the burner, a mean flow rate which exceeds the flame propagation velocities under the given reaction conditions being established in the mixing zone within the passages.Type: GrantFiled: April 21, 2006Date of Patent: June 7, 2011Assignee: BASF AktiengesellschaftInventors: Bernd Bartenbach, Kai Rainer Ehrhardt, Arne Hoffmann, Frank Kleine Jaeger
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Patent number: 7928275Abstract: Process for the preparation of acetylene from hydrocarbons by partial oxidation, arc cleavage or pyrolysis, the material stream comprising the acetylene and soot obtained being fed to a compressor, wherein a liquid which takes up the major part of the soot present in the material stream is sprayed into the compressor.Type: GrantFiled: February 13, 2007Date of Patent: April 19, 2011Assignee: BASF SEInventors: Michael Bachtler, Kai Rainer Ehrhardt, Christopher P Witte, Michael L. Hayes
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Patent number: 7794513Abstract: The invention relates to a process for the scale-up of a reactor (1) having a supply of a reaction mixture via channels (2) of a burner block (3) to a reaction chamber (4), a high temperature reaction having a short residence time taking place in the reaction chamber (4) and the reaction mixture subsequently being rapidly cooled in a quench area (5). For a throughput enlargement the internal diameter of the reactor (1) is enlarged, the transition of the reaction chamber (4) to the quench area (5) being designed in the form of a gap, which is restricted to a width in the range from 2 to 200 mm.Type: GrantFiled: March 23, 2004Date of Patent: September 14, 2010Assignee: BASF SEInventors: Bernd Bartenbach, Kai Rainer Ehrhardt
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Publication number: 20100016646Abstract: In the process for hydrogenating butadiyne over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as a support, the hydrogenation is performed at a pressure in the range from 1 to 40 bar and a temperature in the range from 0 to 100° C., and from 0.05 to 5% by weight, based on the overall catalyst, of platinum group metal is present on the support.Type: ApplicationFiled: June 16, 2009Publication date: January 21, 2010Applicant: BASF SEInventors: Lucia KOENIGSMANN, Ekkehard Schwab, Piotr Makarczyk, Kai Rainer Ehrhardt, Maximilian Vicari, Thomas Heidemann, Dirk Grossschmidt, Gerrit Waters
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Publication number: 20090306447Abstract: A process is proposed for continuously operating a plant for preparing acetylene from hydrocarbons by partial oxidation, cleavage in an arc or pyrolysis of hydrocarbons to obtain a reaction gas mixture which is conducted through one or more compressors, the pressure of the reaction gas mixture on the suction side of the compressor being controlled within a predefined range by means of a conventional controller, which comprises additionally using a higher-level model-supported predictive controller which reacts to abrupt changes in the mass flow rate of the reaction gas mixture.Type: ApplicationFiled: April 4, 2007Publication date: December 10, 2009Applicant: BASF SEInventors: Kai Rainer Ehrhardt, Raymond Poche, William R. Scullin, Michael L. Hayes
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Publication number: 20090152499Abstract: Methods comprising: (a) providing a starting mixture comprising at least one hydrocarbon and at least one oxygen source, wherein the starting mixture has a fuel number of at least 4; (b) heating the starting mixture to a temperature of not more than 1400° C. and subjecting it to a single-stage, autothermal, uncatalyzed reaction to form a reaction gas; and (c) subjecting the reaction gas to rapid cooling to form at least one olefin and synthesis gas are described.Type: ApplicationFiled: April 21, 2005Publication date: June 18, 2009Applicant: BASF AktiengesellschaftInventors: Bernd Bartenbach, Julian Prölß, Petra Schmitz-Bäder, Christian Weichert, Kai Rainer Ehrhardt
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Publication number: 20090023970Abstract: Process for the preparation of acetylene from hydrocarbons by partial oxidation, arc cleavage or pyrolysis, the material stream comprising the acetylene and soot obtained being fed to a compressor, wherein a liquid which takes up the major part of the soot present in the material stream is sprayed into the compressor.Type: ApplicationFiled: February 13, 2007Publication date: January 22, 2009Applicant: BASF SEInventors: Michael Bachtles, Kai Rainer Ehrhardt, Christopher P. Witte, Michael L. Hayes
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Publication number: 20080188698Abstract: A process for the preparation of acetylene and synthesis gas by partial thermal oxidation in a reactor which has a burner having passages, wherein the starting materials to be reacted are rapidly and completely mixed only immediately before the flame reaction zone in the passages of the burner, a mean flow rate which exceeds the flame propagation velocities under the given reaction conditions being established in the mixing zone within the passages.Type: ApplicationFiled: April 21, 2006Publication date: August 7, 2008Applicant: BASF AktiengesellschaftInventors: Bernd Bartenbach, Kai Rainer Ehrhardt, Arne Hoffmann, Frank Kleine Jager
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Patent number: 7294325Abstract: A process is described for preparing hydrogen cyanide by autothermal noncatalytic oxidation of one or more nitrogenous hydrocarbons or a nitrogenous hydrocarbon mixture in which the nitrogenous hydrocarbons, an oxygen-containing gas, with or without ammonia, with or without water, with or without a gas containing nitrogen oxides and with or without other essentially inert feed gas constituents are introduced into a flame reaction zone, react in the flame reaction zone and a post-reaction zone at a temperature of from 1000 to 1800° C. for a reaction time of 0.03 to 0.3 s to form a cleavage gas which comprises at least the constituents hydrogen cyanide, carbon oxides, hydrogen, water, ammonia, nitrogen, light hydrocarbons with or without other cleavage gas constituents, the atomic C/N ratio in the reaction zones being from 1 to 7 and the atomic air ratio ?ato being <0.6, the cleavage gas being cooled and separated.Type: GrantFiled: July 24, 2003Date of Patent: November 13, 2007Assignee: BASF AktiengesellschaftInventors: Kai Rainer Ehrhardt, Mayke Mueller-Eversbusch, Dieter Stapf
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Publication number: 20040205996Abstract: The invention relates to a process for the scale-up of a reactor (1) having a supply of a reaction mixture via channels (2) of a burner block (3) to a reaction chamber (4), a high temperature reaction having a short residence time taking place in the reaction chamber (4) and the reaction mixture subsequently being rapidly cooled in a quench area (5). For a throughput enlargement the internal diameter of the reactor (1) is enlarged, the transition of the reaction chamber (4) to the quench area (5) being designed in the form of a gap, which is restricted to a width in the range from 2 to 200 mm.Type: ApplicationFiled: March 23, 2004Publication date: October 21, 2004Inventors: Bernd Bartenbach, Kai Rainer Ehrhardt