Review on high value utilization of biomass

Starting from biomass gasification, catalytic pyrolysis and preparation of functional carbon materials, the effects of process technology, types of raw materials and catalysts on low-carbon biomass based hydrogen rich syngas, chemicals and products of carbon based materials were reviewed. The regulation mechanism of biomass thermochemical conversion and high-value utilization was established. Combined with pyrolysis polygeneration process, the comprehensive utilization of all components of biomass was prospected. Combined with the pyrolysis polygeneration process, the comprehensive utilization of all components of biomass was prospected. Biomass pyrolysis polygeneration technology could cooperate to prepare carbon, gas and oil products. It is an important way for the comprehensive utilization of biomass, but the product quality can still be greatly improved. The three components of biomass have different target product orientation. The separation of three components by pretreatment can improve the product quality, but the cost is high and the technology is not mature. It is necessary to deeply explore the pretreatment process and optimize the pretreatment process. The composite catalyst/adsorbent plays a significant role in tar conversion, CO2 in-situ capture and increasing H2 yield. The catalyst and activator show good catalytic deoxidation and activation pore enlargement effects for biomass pyrolysis. However, the disadvantages of conventional catalysts such as low efficiency, instability and easy deactivation restrict the development of industrialization. It is necessary to strengthen the development of new efficient, stable and green catalysts and strengthen the collaborative optimization of reaction parameters and catalysts. © 2022 Huazhong University of Science and Technology. All rights reserved.