Basf Aktiengesellschaft

Basf Se Corporation

Horst Neuhauser

Rainer Becker

Maximilian Vicari

Dirk Grossschmidt

Michael Russ

Christian Weichert

Klemens Massonne

Wolfgang Reif

Kai Rainer Ehrhardt

Michael L Hayes

Johann-Peter Melder

Andreas Henne

Heinz-Josef Kneuper

Peter Renze

Rolf Lebkucher

Mirko Haider

Rolf Hartmuth Fischer

Michael Hesse

Albrecht Harreus

Boris Breitscheidel

Hardo Siegel

Eckehardt Wistuba

Stephan Andreas Schunk

Kaspar Bott

Werner Schnurr

Michael Kroener

Wolfgang Paulus

Oral Aydin

Frank Funke

Eberhard Fuchs

Jochen Wild

Matthias Irgang

Gregor Ley

Gerhard Bauer

Arthur H&ouml;hn

Karl-Heinz Ross

Joachim Wulff-Doring

Klaus Mundinger

Joachim Simon

Lukas Haussling

Ulrich Koehler

Horst Zimmermann

Hans-Jurgen Weyer

Joachim Wulff-D&ouml;ring

Jan Nouwen

Knut Eger

Albrecht Zosel

Thomas-Michael Kahl

Andreas Gieseler

Hans Zapf

Peter Cramers

Daniel Nardin

Dirk Großschmidt

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

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.

Process for preparing amines

Halides are removed from halide-containing nitrile mixtures by

Removal of halides from halide-containing nitrile mixtures

Process for preparing phthalides

Process for purifying phthalide

In a process for the N-alkylation of amines in which alcohols are reacted with alkylamines or dialkylamines in the presence of hydrogen, the reaction takes place on a catalyst based on copper and magnesium silicate and containing, in each case independently, 0 to 2% by weight of BaO, Cr.sub.2 O.sub.3 and/or ZnO. The amines employed are mono- or dimethylamine or mono- or diethylamine, the alcohols employed are .alpha.,.omega.-diols, in particular diethylene glycol or pentanediol. In particular there is reaction of diethylene glycol with monomethylamine and/or monoethylamine to give N-methylmorpholine and/or N-ethylmorpholine.

N-alkylation of amines

In a process for preparing alkylamines by reacting amines and aliphatic aldehydes in the presence of free hydrogen on a fixed bed catalyst in a reactor in which amines and aldehydes are mixed in the catalyst bed after being fed in in separate streams, only the aldehyde stream or only the amine stream is preheated during the feeding in.

Growing community of inventors

Dudenhofen, Germany

Horst Neuhauser