Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst
AssigneeSaudi Arabian Oil Company
InventorMohammad S. Al-Qahtani
Life of this patent
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Abstract
A feed stream is flowed to a catalytic reactor. The catalytic reactor includes a non-thermal plasma and a catalyst. The feed stream includes hydrogen sulfide and carbon dioxide. The feed stream is contacted with the catalyst in the presence of the non-thermal plasma at a reaction temperature, thereby converting the hydrogen sulfide and the carbon dioxide in the feed stream to produce a product. The product includes a hydrocarbon and sulfur. The product is separated into a product stream and a sulfur stream. The product stream includes the hydrocarbon from the product. The sulfur stream includes the sulfur from the product.
Claims19
A method comprising:
- flowing a feed stream to a catalytic reactor comprising a non-thermal plasma and a catalyst, the feed stream comprising hydrogen sulfide and carbon dioxide, the catalyst comprising a zeolite-based catalyst;
- contacting the feed stream with the catalyst in the presence of the non-thermal plasma at a reaction temperature that is in a range of from about 20 degrees Celsius (° C.) to about 900° C., thereby converting the hydrogen sulfide and the carbon dioxide in the feed stream to produce a product comprising a hydrocarbon and sulfur, the hydrocarbon having more carbon atoms than ethane;
- and
- separating the product into a product stream comprising the hydrocarbon and a sulfur stream comprising the sulfur.
A method comprising:
- flowing a first feed stream to a first catalytic reactor comprising a first non-thermal plasma and a first catalyst, the first feed stream comprising hydrogen sulfide and carbon dioxide;
- contacting the first feed stream with the first catalyst in the presence of the first non-thermal plasma at a first reaction temperature that is in a range of from about 20 degrees Celsius (° C.) to about 900° ° C., thereby converting the hydrogen sulfide and the carbon dioxide in the first feed stream to produce a first intermediate product comprising hydrogen, carbon monoxide, water, and sulfur;
- separating the first intermediate product into a second intermediate product comprising the hydrogen, the carbon monoxide, and the water and a first sulfur stream comprising at least a portion of the sulfur from the first intermediate product;
- separating the second intermediate product into a second feed stream comprising the hydrogen, the carbon monoxide, and the water and a second sulfur stream comprising at least a portion of the sulfur from the second intermediate product;
- flowing the second feed stream to a second catalytic reactor comprising a second non-thermal plasma and a second catalyst, the second catalyst comprising a zeolite-based catalyst;
- and
- contacting the second feed stream with the second catalyst in the presence of the second non-thermal plasma at a second reaction temperature that is in a range of from about 20° C. to about 900° C., thereby converting the hydrogen and the carbon monoxide in the second feed stream to produce a product comprising a hydrocarbon having more carbon atoms than ethane.
Dependencies are inferred from the claim text.