Separation of sulfurous materials
Assignee8 Rivers Capital, LLC
InventorsRodney John Allam, Mohammad Rafati
Life of this patent
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Abstract
The present disclosure relates to systems and methods for separation of sulfurous material(s) from a multi-component feed stream. The systems and methods can comprise contacting the multi-component feed stream with a solvent in a contacting column so that at least a portion of the sulfurous material(s) is transferred from the multi-component feed stream to the solvent. A stream of a substantially purified gas can thus be provided along with a liquid stream comprising at least a majority of the sulfurous material. In particular, the solvent can comprise liquid carbon dioxide, which can be particularly beneficial for removing sulfurous materials from multi-component feed streams.
Claims31
A method for separating a sulfurous material from a multi-component feed stream, the method comprising:
- injecting a multi-component feed stream including at least a sulfurous material and a fuel gas into a contacting column;
- injecting a solvent stream comprising liquid carbon dioxide into the contacting column so that the solvent stream comprising the liquid carbon dioxide contacts the multi-component feed stream;
- withdrawing from the contacting column a bottom product stream containing at least a portion of the sulfurous material from the multi-component feed stream;
- and
- withdrawing from the contacting column an overhead vapor stream containing at least a portion of the fuel gas.
A method for separating a sulfurous material from a multi-component feed stream, the method comprising:
- providing a multi-component feed stream including at least a sulfurous material and a fuel gas at a temperature of about −10° C. to about −55° C.;
- providing a solvent at a temperature of about −10° C. to about −55° C. and a pressure of about 7 bar to about 100 bar, wherein greater than 90% molar of the solvent is in a liquid form;
- injecting the multi-component feed stream and the solvent into a contacting column so that the solvent contacts the multi-component feed stream;
- withdrawing from the contacting column a bottom product stream containing at least a portion of the sulfurous material from the multi-component feed stream;
- and
- withdrawing from the contacting column an overhead vapor stream containing at least a portion of the fuel gas.
Dependencies are inferred from the claim text.