Catalyst for purification of CO2 from chlorinated hydrocarbons
AssigneeSaudi Basic Industries Corporation
InventorsAghaddin Kh. Mammadov, Clark David Rea
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Abstract
A process for the purification of CO2 from chlorinated hydrocarbons and non-chlorinated hydrocarbons, comprising: contacting a CO2 stream with a chromium oxide catalyst, wherein the stream comprises the CO2, and impurities, wherein the impurities comprise the non-chlorinated hydrocarbons and the chlorinated hydrocarbons; forming a purified CO2 stream by interacting the impurities with the chromium oxide catalyst to form additional CO2 and chromium chloride; and regenerating the chromium oxide catalyst by contacting the chromium chloride with an oxygen containing gas stream.
Claims20
A process for the purification of CO2 from chlorinated hydrocarbons and non-chlorinated hydrocarbons, comprising:
- contacting a CO2 stream with a chromium oxide catalyst, wherein the stream comprises the CO2, and impurities, wherein the impurities comprise the non-chlorinated hydrocarbons and the chlorinated hydrocarbons;
- forming a purified CO2 stream by interacting the impurities with the chromium oxide catalyst to form additional CO2 and chromium chloride;
- and
- regenerating the chromium oxide catalyst by contacting the chromium chloride with an oxygen containing gas stream.
A process for the purification of CO2 from chlorinated hydrocarbons and non-chlorinated hydrocarbons, comprising:
- contacting a CO2 stream with a chromium oxide catalyst, wherein the CO2 stream comprises the CO2 and impurities, wherein the impurities comprise the non-chlorinated hydrocarbons and the chlorinated hydrocarbons;
- and
- forming a purified CO2 stream by oxidizing the impurities in the CO2 stream with catalyst oxygen to form additional CO2 and converting the chlorine to chromium chloride;
- and
- regenerating the chromium oxide catalyst by contacting the chromium chloride with an oxygen containing gas stream;
- wherein no oxygen is added to the CO2 stream before or during the contacting and the oxidizing.
A process for the purification of CO2 from chlorinated hydrocarbons and non-chlorinated hydrocarbons, comprising:
- contacting a CO2 stream with a chromium oxide catalyst, wherein the CO2 stream comprises the CO2 and impurities, wherein the impurities comprise the non-chlorinated hydrocarbons and the chlorinated hydrocarbons;
- forming a purified CO2 stream by oxidizing the impurities with catalyst oxygen to form additional CO2 and converting the chlorine to chromium chloride;
- and
- regenerating the chromium oxide catalyst by contacting the chromium chloride with an oxygen containing gas stream;
- wherein the CO2 stream comprises less than or equal to 0.3 ppmv of oxygen based on the total volume of the CO2 stream.
Dependencies are inferred from the claim text.