Abstract
Jilin Province, as a large agricultural province, has abundant reserve of biomass resources. At the same time Jilin Province is currently suffering from energy shortage. Besides, consumption of conventional fossil fuels has resulted in the exacerbation of global warming and air pollution. Biomass energy as a renewable and substitutive energy, can mitigate the energy crisis and global warming, and improve environmental quality once it is fully utilized. This paper estimated the supply potential of biomass energy and integrated LCA and environmental cost analysis to make evaluation on biomass utilization taking biomass power generation system as example. Acquirable and utilizable amount of biomass energy in Jilin Province is equivalent to 21.26 tce, which can be accounted for 25.6% of total energy consumption in Jilin Province in 2011. Among all biomass energy, 59.1% comes from straw and agricultural residues, followed by 33.8% from livestock manure. According to the LCA results, total environmental impact of biomass power generation system is 0.721, much smaller than 25.321 of thermal power generation system. General cost of biomass power generation is higher, however its environmental cost is much lower than thermal power generation system (396 yuan/104kWh < 1819 yuan/104kWh). The results showed that biomass utilization has better environmental advantages and has the potential for the mitigation of energy crisis in Jilin Province.
Highlights
With the increasingly depletion of conventional and non-renewable energy sources, research on biomass energy, which is a kind of renewable, abundant and environmentally friendly substitutive energy has been a hot issue around the world
The results show that total amount of biomass energy in Jilin Province is 21.26 million tce, among which 59.1% comes from farming, 33.8% comes from animal husbandry, 3.9% comes from forestry and 3.1% comes from city
The total amount of biomass energy can be accounted for 25.6% of total energy consumption of Jilin Province in 2011
Summary
With the increasingly depletion of conventional and non-renewable energy sources, research on biomass energy, which is a kind of renewable, abundant and environmentally friendly substitutive energy has been a hot issue around the world. Reserve of primary energy of Jilin Province only accounts for 0.3% of China and its energy self-sufficiency rate is less than 50% (Zhao, 2011). In 2010, conventional fossil energy accounted for 94.1% of the total energy consumption and new and renewable energy only accounted for 5.9%. Songyuan City is a new petrochemical city located in the west of Jilin Province. It is large commodity grain base and oil base of China whose yield of corn is 4 million ton, accounting for 1/4 of Jilin Province’s total yield. Main processes of the system include feedstock collection, straw combustion, water recycling and purification, and power generation
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