Method and apparatus for membrane-based, two-stage gas production from solid biomaterials
First Claim
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1. A system for producing a gas comprising:
- a single vessel comprising a multi-stage reactor comprising at least one leach-bed reactor and at least one suspended-growth reactor, said suspended-growth reactor in fluid communication with said leach-bed reactor;
a plurality of tubes, wherein a portion of said tubes divide said leach-bed reactor from said suspended-growth reactor within said single vessel;
an annular space between said tubes dividing said leach-bed reactor from said suspended-growth reactor;
said annular space comprising an area for anaerobic fermentation producing H2CO2, and dissolved fatty acids; and
a gas-specific membrane system disposed above said leach-bed reactor and said suspended-growth reactor and in fluid communication with said multi-stage reactor.
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Abstract
Embodiments of the present invention preferably relate to a method and apparatus for a two-stage membrane-based production of gas, preferably hydrogen gas or the like, from solid biological materials, preferably organic waste materials or the like, comprising anaerobic hydrolysis and fermentation and photofermentation using microorganisms.
29 Citations
7 Claims
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1. A system for producing a gas comprising:
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a single vessel comprising a multi-stage reactor comprising at least one leach-bed reactor and at least one suspended-growth reactor, said suspended-growth reactor in fluid communication with said leach-bed reactor; a plurality of tubes, wherein a portion of said tubes divide said leach-bed reactor from said suspended-growth reactor within said single vessel; an annular space between said tubes dividing said leach-bed reactor from said suspended-growth reactor; said annular space comprising an area for anaerobic fermentation producing H2CO2, and dissolved fatty acids; and a gas-specific membrane system disposed above said leach-bed reactor and said suspended-growth reactor and in fluid communication with said multi-stage reactor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Current AssigneeArrowhead Center, Inc.
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Original AssigneeArrowhead Center, Inc.
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InventorsNirmalakhandan, Nagamany, Deng, Shuguang, Smith, Geoffrey
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Primary Examiner(s)BOWERS, NATHAN ANDREW
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Application NumberUS12/011,121Time in Patent Office1,448 DaysField of Search435/292.5, 435/292.1, 435/289.1, 435/297.1, 435/297.2, 435/299.1, 435/304.1US Class Current435/292.1CPC Class CodesC12M 21/04 for producing gas, e.g. bio...C12M 23/24 Gas permeable partsC12M 23/58 Reaction vessels connected ...Y02E 50/30 Fuel from waste, e.g. synth...
