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US 2009/0023970 A1Published application
Method for producing acetylene
AssigneeBASF SE
InventorsMichael Bachtles, Kai Rainer Ehrhardt, Christopher P. Witte, Michael L. Hayes
Life of this patent
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Abstract
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.
Claims14
1:
- A 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.
2:
- The process according to claim 1, wherein the liquid sprayed in is water.
3:
- The process according to claim 1, wherein the liquid sprayed in is oil.
4:
- The process according to claim 1, wherein the liquid sprayed in is a solvent.
5:
- The process according to claim 4, wherein, after the compression of the material stream, the solvent is used for the separation thereof.
6:
- The process according to claim 1, wherein one or more one-stage or multistage screw compressors are used as the compressor.
7:
- The process according to claim 1, wherein the compression ratio is at least 1:2.
8:
- The process according to claim 1, wherein the compression ratio is preferably at least 1:3.
9:
- The process according to claim 2, wherein the water emerging from the compressor has a soot content of from 0.05 to 5% by weight.
10:
- The process according to claim 9, wherein the water emerging from the compressor has a soot content of from 0.1 to 1.5% by weight.
11:
- The process according to claim 9, wherein the water emerging from the compressor has a soot content of from 0.15 to 0.8% by weight.
12:
- The process according to claim 1, wherein the soot-free liquid seals the compressor from the environment.
13:
- The process according to claim 1, wherein soot deposits on the intake screen upstream of the compressor and/or on the intake muffler upstream of the compressor are prevented by continuous or discontinuous moistening with the liquid.
14:
- The process according to claim 13, wherein the liquid is sprayed continuously onto the intake screen using a solid-cone nozzle.