Basf Se Corporation

Basf Aktiengesellschaft

Linde Aktiengesellschaft

Maximilian Vicari

Dirk Grossschmidt

Heinz Auer

Hans Hammer

Hans Hasse

Horst Neuhauser

Bernd Bessling

Friedrich Sauer

Till Adrian

Peter Renze

Kai Rainer Ehrhardt

Ekkehard Schwab

Marc Walter

Matthias Kern

Thomas Heidemann

Torsten Katz

Peter Polanek

Johann-Peter Melder

Andreas Kramer

Werner Schnurr

Juergen Michel

Christian Weichert

Michael Russ

Michael L Hayes

Gerhard Wagner

Thomas Geiger

Mirko Haider

Hans Zapf

Stephan Dilling

Susanne Britzius

Klemens Flick

Michael Schulz

Udo Rheude

Werner Aquila

Wolfgang Reif

Joachim Thiel

Joachim Wulff-Doring

Regina Benfer

Gerrit Waters

Hans-Joachim Muller

Ulrike Wenning

Jan Pablo Josch

Martin Rudloff

Karl Fischer

Gerald Meyer

Lucia Königsmann

Heinz Boelt

Philipp Grüne

Hendrik Reyneke

Lucia Koenigsmann

Christine Toegel

Piotr Makarczyk

Jens Denecke

Germain Kons

Andre Biegner

Christopher Alec Anderlohr

Sven Reining

Ronald Drews

Dirk Groβschmidt

Siegmar Maassen

Jochen Kellenbenz

Andreas Joa

G&uuml;nter Wegner

Ravindra Aglave

Gergor Bloch

J&ouml;rg Niekerken

Lilian Kara-Hippen

Jürgen Dahlhaus

Gregor Bloch

Jürgen Michel

Dirk Großschmidt

A process for preparing methanol from carbon dioxide and hydrogen in a methanol synthesis unit and working up the reaction mixture obtained stepwise to isolate the methanol, wherein the carbon dioxide, carbon monoxide, dimethyl ether and methane components of value from the streams separated off in the isolation of the methanol from the methanol reaction stream are combusted with an oxygenous gas, and the carbon dioxide in the resultant flue gas is separated off in a carbon dioxide recovery unit and recycled to the methanol synthesis unit.

Process for preparing methanol from carbon dioxide and hydrogen with quantitative carbon dioxide utilization

A process for producing acetylene and syngas by partial oxidation of hydrocarbons with oxygen, involving: separately preheating a hydrocarbon and a oxygen-comprising input stream; mixing in a mass flow ratio of the oxygen-comprising to hydrocarbon stream at an oxygen number no more than 0.31; feeding the streams via a burner block to a combustion chamber and therein partially oxidizing the hydrocarbon(s) to a cracking gas; quenching the cracking gas to 80 to 90&#xb0; C. downstream by injecting an aqueous quench medium to obtain a process water stream-and a product gas stream-; cooling the product gas stream-in a cooling column by direct heat exchange with cooling water to obtain a process water stream-as bottoms, a product gas stream-as uppers, and a sidestream; and depleting the sidestream of soot in an electrofilter to generate therein a process water stream-combined with water streams-to afford the process water stream-

Method for producing acetylene and syngas

A process for preparing methanol from a carbon-containing feedstock by producing synthesis gas therefrom in a synthesis gas production unit, converting the synthesis gas to methanol in a methanol synthesis unit and working up the reaction mixture obtained stepwise to isolate the methanol, wherein the carbon monoxide, carbon dioxide, dimethyl ether and methane components of value from the streams separated off in the isolation of the methanol are combusted with an oxygenous gas, and the carbon dioxide in the resultant flue gas is separated off in a carbon dioxide recovery unit and recycled to the synthesis gas production unit and/or to the methanol synthesis unit.

Method for producing methanol from synthesis gas without the emission of carbon dioxide

An apparatus () for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen is proposed, comprising a mixing unit (), a mixing section and a mixing diffuser (). The mixing unit () has a feed orifice () for supply of a hydrocarbonaceous stream, a feed orifice () for supply of an oxygenous stream, a swirl register and a distributor plate (). The distributor plate () is disposed between the mixing section () and the feed orifice () for supply of a hydrocarbonaceous stream. The distributor plate () has orifices (). The swirl register () is disposed between the feed orifice () for supply of an oxygenous stream and the mixing section (). The mixing diffuser () is connected to the mixing section (). There is a further proposal of a process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen.

Apparatus and process for preparing acetylene and synthesis gas

The invention relates to a process for preparing butadiene from n-butenes, comprising the steps of:

Process for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation

An apparatus () for the preparation of acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen is proposed. The apparatus () comprises a reactor (), wherein the reactor () comprises a burner block () with a furnace chamber for the preparation of a composition C1 comprising at least acetylene and substituted acetylene, a first scrubber () which is constructed for adding a solvent to the composition C1 to obtain a composition C2, a second scrubber () which is constructed for adding the solvent to the composition C2 to obtain a composition C3, a first stripper () which is constructed for stripping the composition C3 to obtain a composition C4 comprising the substituted acetylene, acetylene and the solvent and for separating off the acetylene, a first column () which is constructed for partial degassing of the composition C4 under a pressure of from 1.0 bar to 1.5 bar to obtain a composition C5 and a first amount A1 of the solvent, a second stripper () to which the composition C5 can be fed for stripping a composition C9 to obtain a second amount A2 of the solvent and a composition C6, a third stripper () which is constructed for stripping the solvent from the first scrubber () to obtain a composition C9, wherein the third striper () is connected to the second stripper () for feeding the composition C9 to the second stripper (), an apparatus () for adding a diluting gas to the composition C5, which is arranged between the first column () and the second stripper (), a second column () which is constructed for adding water to the composition C6 to obtain a composition C7 comprising a third amount A3 of the solvent and water and to obtain a composition C8 comprising the substituted acetylene, and a mixing condenser () which is constructed for adding water to the composition C8 to obtain a composition C11 comprising the substituted acetylene. A process for the preparation of acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen is further proposed.

Apparatus and process for the preparation of acetylene and synthesis gas

An apparatus () for preparation of acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen is proposed, comprising a reactor (). The reactor () has a burner block () with a firing space for acetylene preparation, a secondary space () formed within the burner block (), and an annular space () surrounding the secondary space (). The burner block () has holes () for supply of a stream of a mixture of hydrocarbons and oxygen to the firing space and holes () for supply of a stream of auxiliary oxygen to the firing space. The holes () for supply of a stream of auxiliary oxygen to the firing space are connected to the secondary space (). The secondary space () is connected to the annular space (). There is a further proposal of a process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen.

The invention relates to a continuous method for producing acetylenes and syngas by partially oxidizing hydrocarbons with oxygen. A first feed stream () containing one or more hydrocarbons and a second feed stream () containing oxygen are &#x2014;mixed in a ratio of the mass flows of the second feed stream () to the first feed stream () corresponding to an oxygen number of less than or equal to 0.31, said streams being heated separately from each other, &#x2014;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, &#x2014;thereby obtaining a first cracked gas stream I. The invention is characterized in that &#x2014;the first cracked gas stream Iis precooled to a temperature ranging from 100 to 1000&#xb0; C. in a prequench region (H), thereby obtaining a second cracked gas stream II, &#x2014;50 to 90% of the solids contained in the second cracked gas stream IIare separated therefrom in a solid-gas separating device (A), thereby obtaining a solid stream Iand a third cracked gas stream III, &#x2014;the third cracked gas stream IIIis cooled to 80 to 90&#xb0; C. by injecting water in a total quench region (B), thereby obtaining a fourth cracked gas stream IVand a first process water stream I, &#x2014;the fourth cracked gas stream IVundergoes a fine separation of solids in one or more scrubbing devices (C, D), thereby obtaining one or more process water streams II, IIIand a product gas stream VI, &#x2014;the process water streams I, II, IIIare merged into a combined process water stream IV, &#x2014;the combined process water stream IVis partly recirculated, as stream V, into the total quench region (B) and otherwise undergoes a cleaning process, as stream VI, by means of a partial evaporation process, thereby obtaining a cleaned process water stream VII, &#x2014;which is cooled by a recooling device (F), partially recycled, as stream VIII, into the method, and otherwise discharged, as stream IX.

Method for producing acetylenes and syngas

A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, is disclosed. The process consists of separately preheating and then mixing a first input stream containing a hydrocarbon and a second input stream containing oxygen, supplying the first input stream and the second input stream via a burner block to a firing space, quenching a cracking gas obtained to produce a process water stream and a product gas stream, cooling the product gas stream in a cooling column by direct heat exchange with cooling water, depleting soot in an electrostatic filter, combining all process water streams and passing through soot channels, subjecting the combined process water stream to a cleaning operation by partial vaporization in a one-stage flash vessel to obtain a cleaned process water stream, and recycling the cleaned process water stream into the process.

Process for preparing acetylene and synthesis gas

The invention proposes a method for producing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, wherein a first feedstock (), containing one or more hydrocarbons, and a second feedstock (), containing oxygen, &#x2014;are preheated separately from one another, &#x2014;are fed via a burner block (B) to a combustion chamber (F), in which the partial oxidation of the hydrocarbons takes place, &#x2014;obtaining a cracked gas, which is quenched by injecting a quench oil downstream of the furnace body at 200&#xb0; C. to 250&#xb0; C., wherein &#x2014;a flow of product gas Ig is obtained, which &#x2014;is cooled in a burner column (BK) with further quench oil, obtaining &#x2014;a flow of product gas IIg cooled to 60&#xb0; C. to 90&#xb0; C., which &#x2014;is guided into a final cooler (SK), in which a flow of product gas IIIg, cooled to 20&#xb0; C. to 50&#xb0; C., is obtained by direct thermal exchange with water, as well as a flow of process water I liq &#x2014;which is characterized in that the flow of process water I liq is subjected to purification by partial evaporation in a single-stage expansion chamber, wherein the flow of process water I liq is vaporized to a proportion of 0.01 percent by weight to 10 percent by weight, relative to the total weight of same, obtaining a purified flow of process water II liq which is removed in the waste water.

Method for producing acetylene and synthesis gas

A process is proposed for preparing acetylene by the Sachsse-Bartholom&#xe9; process by combustion of a natural gas/oxygen mixture in one or more burners to obtain a cracking gas which is cooled in two or more stages in burner columns, each burner having one or more burner columns assigned thereto, and said cracking gas being quenched with pyrolysis oil in the first cooling stage, to obtain a low boiler fraction comprising benzene, toluene and xylene from the one or more burner columns, which is cooled with direct cooling water and separated in a phase separator into an aqueous phase and an organic phase which comprises benzene, toluene and xylene and is fully or partly introduced to the top of the one or more burner columns as a return stream, wherein the organic phase comprising benzene, toluene and xylene from the phase separator, prior to full or partial recycling to the top of the one or more burner columns, is supplied to a selective hydrogenation over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as support, comprising 0.05 to 5% by weight of platinum group metal, based on the total weight of the catalyst, and wherein the selective hydrogenation is performed at a pressure in the range from 10 to 70 bar gauge and a temperature in the range from 0 to 100&#xb0; C.

Process for preparing acetylene by the Sachsse-Bartholom&#xe9; process

A process for partial oxidation of hydrocarbons in a reactor, in which a stream comprising the hydrocarbon and a stream comprising the oxygen are fed to the reactor, wherein both streams fed to the reactor are conducted within the reactor separately through in each case one or more spatially separate lines, these lines having turbulence generators in their interior, owing to which, as a result of the imposed deflection of the flow direction downstream of turbulence generators, a highly turbulent flow field forms, and the streams are then mixed in a mixing zone after exiting from the lines and then converted in a reaction zone.

Process and apparatus for thermal partial oxidation of hydrocarbons

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 cm.

Process and apparatus for preparing acetylene and synthesis gas

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&#xb0; 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.

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&#xb0; C., and from 0.05 to 5% by weight, based on the overall catalyst, of platinum group metal is present on the support.

Process for hydrogenating butadiyne

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Limburgerhof, Germany

Maximilian Vicari