Title:
METHOD AND SYSTEM FOR PRODUCING AND SUPPLYING BIOGAS USING MIXED MICROALGAE
Document Type and Number:
WIPO Patent Application WO/2012/077250
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a method and a system for supplying a biogas, each of which is equipped with microalgae culturing facilities and methane fermentation facilities and appropriately supplies a gas in response to the demand of a biogas user by efficiently producing the biogas under controlled conditions. The objective is achieved by providing: a biogas supply system which is equipped with first and second mixed microalgae culture tanks (1, 2) that are provided with a nutrient source supply means or a carbon dioxide supply means, a concentrated liquid tank (7) for concentrating and storing a microalgae culture solution from the microalgae culture tanks by means of a concentration device, a methane fermentation tank (8) to which the concentrated microalgae culture solution is supplied from the concentrated liquid tank for carrying out methane fermentation, and a biogas holder (15) for storing a methane gas that is generated in the methane fermentation tank; and a method for producing and supplying a biogas using the biogas supply system. According to these method and system for producing and supplying a biogas, a uniform kind of bio starting material for methane fermentation is efficiently prepared by culture of microalgae, and methane fermentation can be carried out under uniform and efficient conditions by using the bio starting material for methane fermentation under homogeneous concentration conditions. Consequently, the biogas can be supplied under controlled conditions through the system.
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Inventors:
NODA JUICHIRO (JP)
ONO YOICHI (CN)
KUMON YOSHIMICHI (CN)
ONO YOICHI (CN)
KUMON YOSHIMICHI (CN)
Application Number:
PCT/JP2011/003388
Publication Date:
June 14, 2012
Filing Date:
June 14, 2011
Export Citation:
Assignee:
NODA JUICHIRO (JP)
LOCH ENERGY LTD (CN)
ONO YOICHI (CN)
KUMON YOSHIMICHI (CN)
LOCH ENERGY LTD (CN)
ONO YOICHI (CN)
KUMON YOSHIMICHI (CN)
International Classes:
C12M1/113; C10L3/06; C12M1/00; C12P5/00; C02F11/04
Domestic Patent References:
| WO2007108509A1 | 2007-09-27 |
Foreign References:
| JP2001527394A | 2001-12-25 | |||
| JPS58101685A | 1983-06-16 | |||
| JPS5329982A | 1978-03-20 |
Attorney, Agent or Firm:
HIROTA, Masanori (JP)
Masaki Hirota (JP)
Masaki Hirota (JP)
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Claims: