PetroChina builds the first straw-based bio-natural gas pilot base

The daily output of biogas exceeds 2,000 cubic meters, and the main efficiency indicators are leading at home and abroad

　　On June 6, PetroChina's first straw-based biogas pilot base, which was established in Daqing Oilfield, was operating stably, with a daily biogas output of more than 2,000 cubic meters, of which the methane content was higher than 50% and the biogas purity was higher than 95%.
The efficiency is 4 times that of the national standard, and the main efficiency indicators are at the leading level at home and abroad
.

　　According to the "Guiding Opinions on Promoting the Industrialization of Bio-natural Gas" issued by the National Development and Reform Commission, the Energy Administration and ten ministries and commissions in 2019, Daqing Oilfield actively promotes the bio-energy industry in accordance with the requirements of PetroChina to "accelerate the technological development of new energy, new materials and new businesses" The construction, focusing on the development of bio-natural gas, will create a bio-economy pilot area with the characteristics of the group company
.

　　In June 2021, the construction of the 500 cubic meter microbial anaerobic fermentation system and supporting projects in Daqing Oilfield started, and the pilot project was completed in November of that year
.
At the beginning of this year, Daqing Oilfield set up a special working class, developed high-temperature dry continuous anaerobic fermentation technology, built a pilot production line with a tank capacity of 500 cubic meters, cultivated and selected high-temperature anaerobic bacteria for straw-based biological natural gas, and mastered the The regularity between inoculation time and inoculation amount
.
This technology has been recognized by experts from the Ministry of Agriculture and Rural Affairs of the People's Republic of China.
Experts believe that the relevant technical equipment has achieved high-efficiency gas production, which is in line with the future development trend of biomass anaerobic fermentation
.

　　Bio-natural gas is produced by anaerobic fermentation, purification and purification using organic wastes such as crop straw and livestock and poultry manure as raw materials
.
The biogas residue and biogas slurry produced in the fermentation process can be used to produce organic fertilizer and then be applied to the soil, which is green, low-carbon and clean
.
In 2021, Daqing City will have a total of 11.
49 million mu of arable land, accounting for about 5% of the total arable land in Heilongjiang Province
.
Among them, the corn planting area is 7.
09 million mu, and the straw stock is very large
.
Promoting the development of bio-natural gas industry can create considerable economic benefits and reduce environmental pollution
.