This paper is to develop a model on synthesis reaction of methanol using material and thermodynamics balance , and to utilize matlab to solve multielement nonlinear equation set on proposed model , so calculate balance composition of reactions , parameters of various materials , various process criteria such as methanol output and consumption according to given operation conditions , thereby can quantitatively analyze the effect of various operation conditions on process criteria , so that direct the actual chemical operation , thus assist to determine the optimal operating conditions of synthesis , consequently could forecast various criteria such as yield and consumption according to given conditions of feeds 摘要通過(guò)物料平衡與勢(shì)力學(xué)平衡對(duì)甲醇合成反應(yīng)過(guò)程進(jìn)行建模,并采用matlab工具對(duì)所建模型進(jìn)行多元非線性方程組的求解,以根據(jù)給定操作條件來(lái)計(jì)算反應(yīng)平衡組成、各股物料參數(shù)、各主要工藝指標(biāo)如甲醇?量、消耗等,并繼而定量分析各種操作條件對(duì)工藝指標(biāo)的影響,以便指導(dǎo)實(shí)際化工生?操作,從而幫助確定最佳的合成操作工況條件,并可以根據(jù)給定的原料條件等參數(shù)預(yù)測(cè)合成?量與消耗等指標(biāo)。