Title:
DEVICE AND METHOD FOR BIOLOGICAL DESULFURIZATION OF BIOGAS
Document Type and Number:
WIPO Patent Application WO/2014/002926
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a device and method for biological desulfurization of biogas with which efficiently treating high-load hydrogen sulfide and converting the treated hydrogen sulfide to sulfuric acid eliminates in-device blockage, eliminates steps such as cleaning, and enables low-cost treatment. The present invention is a biological desulfurization device characterized in that: provided are a biogas inflow line (5) for allowing biogas to flow in from an end of a biological desulfurization column (1), a treated gas outflow line (7) for discharging treated gas to a subsequent stage of a packed bed (1a) which is another end of the biological desulfurization column and bears microorganisms, and a circulated gas line (8) for circulating some of the treated gas to the end of the biological desulfurization column where the biogas flows in; and, in an arithmetic unit (11), a hydrogen sulfide load quantity is calculated from measurement values of a hydrogen sulfide concentration meter (3) and a gas flowmeter (4) provided to the biogas inflow line (2), a circulated gas amount regulatory mechanism (9) being actuated according to the results thereof to adjust the amount of circulated gas passing through the circulated gas line (8).
Inventors:
TANAKA TOSHIHIRO (JP)
MINAMI DAISUKE (JP)
ODAGIRI TADASHI (JP)
MINAMI DAISUKE (JP)
ODAGIRI TADASHI (JP)
Application Number:
PCT/JP2013/067186
Publication Date:
January 03, 2014
Filing Date:
June 24, 2013
Export Citation:
Assignee:
EBARA JITSUGYO CO LTD (JP)
International Classes:
C10L3/10; B01D53/18; C02F11/04
Foreign References:
JP2006143780A | 2006-06-08 | |||
JP2010022965A | 2010-02-04 | |||
JPH10128042A | 1998-05-19 |
Attorney, Agent or Firm:
TAMURA Chikashi et al. (JP)
Tamura 爾 (JP)
Tamura 爾 (JP)
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