Basf Se Corporation

Other

Michael L Hayes

Kai Rainer Ehrhardt

Maximilian Vicari

Horst Neuhauser

Dirk Grossschmidt

Michael Russ

Christian Weichert

Raymond Poche

William R Scullin

Peter Renze

Mirko Haider

Hans Zapf

Michael Bachtler

Christopher P Witte

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

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 and apparatus for preparing acetylene and synthesis gas

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.

Process for preparing acetylene by partial oxidation of hydrocarbons

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.

Process for the manufacture of acetylene by partial oxidation of hydrocarbons

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.

Method for producing acetylene

An improved frame height gauge for race cars includes a substantially hollow housing having an open top end. A spring urges a stop member pivotally mounted within the housing to an extended position in which the stop member projects through the top opening. In use, an individual slides the gauge beneath a frame portion of a race car at a location to be measured, causing the stop member to contact a portion of the race car frame, depressing the stop member against the bias of the spring into the housing to a depressed position in which the distance from a bottom surface of the housing resting on the ground or a floor to the uppermost extending portion of the stop member corresponds to the car frame height at the particular location. The stop member and housing include cooperating detent members operative to selectively retain and release the stop member from the depressed condition, allowing a user to remove the gauge from beneath the car, while still retaining an indication of the measured frame height on a scale inscribed or imprinted on the housing.

Gauge especially adapted for measuring the frame height of race cars and method of using the same

A restraint comprises a multiplicity of flexible bubbles which are encased in an air-tight envelope of film material. The bubbles are soft, having a Shore A Durometer rating of 10 or less. When air inside the envelope is withdrawn, the restraint molds to the shape of the animate or inanimate object which it surrounds. The restraint becomes surprising rigid but remains soft and pliable. Another embodiment of the invention is particularly designed as an infant carrier.

Growing community of inventors

Gonzales, LA, United States of America

Michael L Hayes