Abstract: In one embodiment, a process for the purification of CO2 from chlorinated and non-chlorinated hydrocarbons, comprising: contacting a CO2 stream with a metal oxide catalyst, wherein the stream comprises the CO2 and impurities comprising the non-chlorinated hydrocarbons and the chlorinated hydrocarbons; interacting the impurities with the catalyst to form additional CO2 and metal chloride; and regenerating the catalyst by contacting the metal chloride with an oxygen containing gas stream.

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.

Abstract: In an embodiment: a method of making syngas in a metal reactor can comprise introducing carbon dioxide and hydrogen to the metal reactor in the presence of a catalyst to form the syngas, wherein the metal reactor comprises nickel and wherein the carbon dioxide and the hydrogen are in physical contact with a wall of the metal reactor; and passivating the nickel with a sulfur containing compound.

Abstract: In an embodiment, a process of making C2+ hydrocarbons comprises contacting a feed comprising a methane steam reforming gas and an additional carbon dioxide with a manganese oxide-copper oxide catalyst to produce a product syngas in a contacting zone under isothermal conditions at a temperature of 620 to 650° C.; and converting the product syngas to C2+ hydrocarbons in the presence of a Fischer-Tropsch catalyst; wherein the methane steam reforming gas has an initial H2:CO volume ratio greater than 3; wherein the product syngas has a H2:CO volume ratio of 1.5 to 3; and wherein the contacting further comprises removing water.

Abstract: In an embodiment, a process of making C2+ hydrocarbons comprises contacting a feed comprising a methane steam reforming gas and an additional carbon dioxide with a manganese oxide-copper oxide catalyst to produce a product syngas in a contacting zone under isothermal conditions at a temperature of 620 to 650° C.; and converting the product syngas to C2+ hydrocarbons in the presence of a Fischer-Tropsch catalyst; wherein the methane steam reforming gas has an initial H2:CO volume ratio greater than 3; wherein the product syngas has a H2:CO volume ratio of 1.5 to 3; and wherein the contacting further comprises removing water.

Abstract: In an embodiment: a method of making syngas in a metal reactor can comprise introducing carbon dioxide and hydrogen to the metal reactor in the presence of a catalyst to form the syngas, wherein the metal reactor comprises nickel and wherein the carbon dioxide and the hydrogen are in physical contact with a wall of the metal reactor; and passivating the nickel with a sulfur containing compound.

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.

Abstract: In one embodiment, a process for the purification of CO2 from chlorinated and non-chlorinated hydrocarbons, comprising: contacting a CO2 stream with a metal oxide catalyst, wherein the stream comprises the CO2 and impurities comprising the non-chlorinated hydrocarbons and the chlorinated hydrocarbons; interacting the impurities with the catalyst to form additional CO2 and metal chloride; and regenerating the catalyst by contacting the metal chloride with an oxygen containing gas stream.