生物质合成甲醇的热力学性质研究

THERMODYNAMIC INVESTIGATION OF METHANOL SYNTHESIS FROM BIOMASS

采用热化学方法,将玉米秸秆裂解为生物质燃气,制备出甲醇合成气;在C301铜基催化剂的作用下,在直流流动等温积分反应器中,对玉米秸秆合成气催化合成甲醇进行了试验研究。运用SHBWR状态方程,计算了加压下秸秆合成气合成甲醇反应体系的密度及状态方程参数;在一定温度和压力条件下,计算了不同组成秸秆合成气合成甲醇反应体系的总反应热△H_(T,P)、平衡常数K_(f_1)、K_(f_2)、K_(p_1)、K_(p_2)及平衡体系各组分的浓度,为生物质(秸秆)气催化合成甲醇工业设备的设计提供了基础研究数据。

Cornstalk is cracked into biomass gases with thermochemical method to prepare the syngas. The syngas is used for catalyzed synthesis of methanol using Cu-based catalyst C310 in tubular-flow integral and isothermal reactor. The den- sities and state equation parameters of methanol reacting system were calculated by SHBWR state equation under 5 MPa pressure. The total reaction heat △HT, p, equilibrium constants Kf1 , Kf2 , KP1 , KP2 and the concentrations of each part of the equilibrium system were calculated for methanol synthesize. The calculation of all the above-mentioned properties provides basic data for the design of the industrial equipments in which catalyzed synthesis of methanol from biomass （cornstalk） gases is operated.