Title:
TEST DEVICE AND METHOD FOR INCREASING PRODUCTION OF COALBED METHANE BY REDUCING NANOBUBBLES ON COAL SURFACE
Document Type and Number:
WIPO Patent Application WO/2023/016099
Kind Code:
A1
Abstract:
A test device for increasing production of coalbed methane by reducing nanobubbles on a coal surface. The test device comprises: a box body (1) internally provided with a fermentation chamber for accommodating coal and bacterial liquid, so as to make the coal and the bacterial liquid ferment in the fermentation chamber; a pressure regulating mechanism acting on the fermentation chamber and used for regulating the pressure inside the fermentation chamber, so as to make nanobubbles generated on a coal surface expand and burst under the action of negative pressure; and a bubble monitoring module (4) arranged directly opposite the fermentation chamber and used for monitoring a dynamic state of the nanobubbles on the coal surface in real time. According to the device, negative pressure is generated during the process of coal biological fermentation, the expansion and bursting of nanobubbles on the coal surface under the action of negative pressure is prompted, the nanobubbles are observed in real time, and the processes of nucleation, growth, coalescence and bursting of the nanobubbles are dynamically analyzed, so as to evaluate the effects of coal biological gas production.
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Inventors:
GUO HONGYU (CN)
XIA DAPING (CN)
DENG ZE (CN)
TIAN JIXIAN (CN)
LI GUOFU (CN)
ZHANG WEI (CN)
CHEN LINYONG (CN)
ZHAO SHUFENG (CN)
XU QIANG (CN)
XIA DAPING (CN)
DENG ZE (CN)
TIAN JIXIAN (CN)
LI GUOFU (CN)
ZHANG WEI (CN)
CHEN LINYONG (CN)
ZHAO SHUFENG (CN)
XU QIANG (CN)
Application Number:
PCT/CN2022/100603
Publication Date:
February 16, 2023
Filing Date:
June 23, 2022
Export Citation:
Assignee:
UNIV HENAN POLYTECHNIC (CN)
International Classes:
C12M1/38; C09K8/582; C12M1/00; C12M1/02; C12M1/04; C12M1/12; C12M1/34; C12M1/36
Domestic Patent References:
| WO2021228428A1 | 2021-11-18 |
Foreign References:
| CN113881559A | 2022-01-04 | |||
| CN205538905U | 2016-08-31 | |||
| CN215828796U | 2022-02-15 | |||
| CN105807002A | 2016-07-27 | |||
| CN113652335A | 2021-11-16 | |||
| CN107358858A | 2017-11-17 |
Attorney, Agent or Firm:
BEIJING HECHUANG ZHIXIN PATENT AGENCY CO., LTD (CN)
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