The Effect of Reaction Conditions on Carbon Sequestration Properties During Biomass Hydrothermal Carbonization Processing
GUO Shu-qing
HAN Yang-yang
DONG Xiang-yuan
WU Teng-fei
WU Ting-ting
WANG Zhe-zhe
Abstract：To investigate the effect of reaction conditions and biomass species on the hydrothermal carbonization (HTC) processing, the hydrothermal experiments were carried out in an autoclave using wheat straw (WS), lawn grass (LG), and phoenix tree leaves (PTL), as raw materials.The reaction temperatures, the residence times, and the ratio of water and biomass were set as 160 ~ 240 ℃, 30~180 min, and 10~50, respectively.The micro-structure and carbonization characteristics of the three types of biomass were analyzed by using X-ray Diffraction (XRD).The results show that the reaction temperature has important effect on carbon sequestration ratio.For the purpose of carbon sequestration (CS), the reaction temperature of LG, WS and PTL could be selected at 200 ℃, 220 ℃ and 240 ℃ respectively.The residence time and the ratio of water and biomass have relatively weak influence on CS ratio.The residence time should be no more than 120min and the ration of water and biomass is no more than 30 for the three types of biomass.The ratio of carbon sequestration for the three biomass is also different.During the processing of hydrothermal carbonization, the carbon sequestration capacity of solid products from the lawn grass, wheat straw and phoenix tree leaves increase in turn.Moreover, the parts of the solid products from WS and PTL have better carbonization degree.
Keywords：biomasshydrothermal carbonizationcarbon sequestrationcarbonization
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )