Hydrocarbon partial oxidation process
AssigneeThe BOC Group, Inc.
InventorsYongxian Zeng, Ravi Jain, Satish S. Tamhankar, Donald L. MacLean, Narayanan Ramprasad
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Abstract
Partial oxidation of hydrocarbons to produce hydrogen and carbon monoxide is carried out by a cyclical process which includes passing air through a perovskite ceramic substance at elevated temperature, thereby adsorbing oxygen from the air, and subsequently contacting the hot oxygen-containing ceramic substance with a hydrocarbon. During the partial oxidation reaction phase of the process, the sorbed oxygen reacts with the hydrocarbon, thereby producing the desired gas products and regenerating the adsorbent for the next cycle of the process.
Claims45
A process for producing hydrogen and carbon monoxide by the partial oxidation of at least one hydrocarbon comprising the steps:
- (a) passing an oxygen-containing gas at a temperature in the range of about 300 to about 1400° C. through a reaction zone containing an oxygen-selective mixed conductor at an absolute pressure in the range of about 0.5 to about 50 bara, thereby preferentially adsorbing oxygen from said oxygen-containing gas onto said mixed conductor;
- and
- (b) passing said at least one hydrocarbon through said reaction zone at a temperature in the range of about 300 to about 1400° C., thereby contacting said mixed conductor and reacting with said oxygen adsorbed onto said mixed conductor to produce a product gas comprising hydrogen, carbon monoxide or mixtures of these.
Apparatus for the partial oxidation of hydrocarbons comprising:
- (a) a reaction zone containing an oxygen-selective mixed conductor;
- (b) means for introducing oxygen-containing gas into said reaction zone;
- (c) means for introducing hydrocarbon feed into said reaction zone;
- and
- (d) means for removing a product stream from said reaction zone.
Dependencies are inferred from the claim text.