Process and System for Syngas Treatment
AssigneeAir Products and Chemicals, Inc.
InventorsGowri Krishnamurthy, Charles Roland Higdon, III, Christine Peck Kretz, Carmine Richard Gagliardi, Kevin M. Duffy, Kuo-Kuang Hsu
Life of this patent
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Abstract
A process for the clean-up of a crude syngas stream having widely varying composition and particulate load. The process includes quenching the crude syngas stream with a liquid stream to cool the syngas stream and remove particulates, tars and heavier hydrocarbon compounds. The process further includes co-scrubbing the syngas stream to remove both HCl and NH3 from the syngas stream, removing particulate matter from the syngas stream, and removing sulfur from the syngas stream. A syngas treatment system is also disclosed.
Claims29
A process for treating a syngas stream, the process comprising:
- quenching the crude syngas stream with a liquid stream to cool the syngas stream and remove at least one member selected from the group consisting of particulates, tars, other heavy hydrocarbon compounds and combinations thereof;
- co-scrubbing the syngas stream to remove both HCl and NH3 from the syngas stream;
- removing additional particulate matter from the syngas stream;
- and
- removing sulfur from the syngas stream to form a clean syngas stream.
A process for the clean-up of a crude syngas stream having widely varying composition and particulate load arising from waste gasification, the process comprising:
- providing a crude syngas stream from a waste gasification system;
- quenching the crude syngas stream with a liquid stream to cool the syngas stream and remove at least one member selected from the group consisting of particulates, tars, other heavy hydrocarbon compounds and combinations thereof;
- co-scrubbing the syngas stream to remove both HCl and NH3 from the syngas stream;
- removing additional particulate matter from the syngas stream;
- and
- removing sulfur from the syngas stream to form the clean syngas stream.
A syngas stream treatment system comprising:
- a syngas stream quenching sub-system for quenching a syngas stream syngas;
- a co-scrubbing sub-system for removing HCl and NH3 from the syngas;
- a particulate removal sub-system for removing particulates from the syngas;
- a sulfur removal sub-system for removing sulfur from the syngas;
- and
- wherein the syngas stream quenching sub-system, the co-scrubbing subsystem, the particulate removal sub-system, the sulfur removal sub-system and an optional mercury removal system are operably arranged to remove HCl, NH3, particulates, sulfur, and mercury from the crude syngas stream to form a clean syngas stream.
Dependencies are inferred from the claim text.