Biomass-solar thermal chemical utilization system capable of realizing multi-product output

Abstract

The invention discloses a biomass-solar thermal chemical utilization system capable of realizing multi-product output. The system comprises a slot-type medium temperature solar pyrolysis absorption reactor, a coke separator, a waste heat recoverer, a tar condensation purifier, a high-temperature solar fluidized bed gasification reactor, an oil storage tank, a cyclone separator, a heliostats field and a hyperboloid reflector. By the aid of the system, high-temperature concentrating solar power is utilized to drive biomass to be subjected to pyrolysis and gasification reaction sequentially and independently according to the principle of 'parallel temperature', medium-temperature thermal energy at the temperature below 450 DEG C obtained by a parabolic slot-type equal line-focusing solar thermal collection device is utilized fully to drive the biomass to be subjected to pyrolytic reaction, carbon residue, tar and the like generated by reaction are subjected to gasification by utilizing high-temperature thermal energy at the temperature over 800 DEG C generated by a high-temperature solar concentrating thermal collection device, the concentrating and thermal collection process of the system is optimized, gasification efficiency of the biomass is improved, and tar content in gasification syngas is lowered.

Description

technical field [0001] The invention relates to the technical field of complementary utilization of multiple renewable energies, in particular to a biomass-solar thermochemical utilization system that realizes multi-product output, so as to realize high-efficiency gasification reaction of biomass driven by solar energy. Background technique [0002] Energy is the basis of economic and social development. In recent years, the consumption of fossil fuels such as coal, oil and natural gas has increased sharply, which has also caused serious environmental pollution. In order to meet the needs of future development, it is necessary to vigorously develop and utilize renewable energy such as solar energy, wind energy and biomass. [0003] China's total primary energy production increased from 1.35 billion tons of standard coal in 2000 to 3.4 billion tons of standard coal in 2013, and its annual primary energy consumption also increased from 1.46 billion tons of standard coal in 200...

AI Technical Summary

Problems solved by technology

[0006] Traditional solar thermal power generation technology usually uses heat transfer oil or molten salt as the heat transfer medium, and the temperature of the generated steam is generally about 370°C and 550°C respectively. It is difficult to improve the overall performance of the solar thermal power generation system by using lower temperature steam. Moreover, solar energy also has the characteristics of intermittent and periodic changes. How to realize the continuous and stable operation of power generation devices is still one of the difficulties in this type of power generation technology.

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