Analysis, Synthesis, and Design of a One-Step Dimethyl Ether Production via a Thermodynamic Approach
出版日期:2013-01-01 00:00:00
著者:Chen, Hsi-Jen; Fan, Chei-Wei; Yu, Chiou-Shia
單位:淡江大學化學工程與材料工程學系
出版者:Amsterdam: Elsevier
著錄名稱、卷期、頁數:Applied Energy 101, pp.449–456
摘要:In this work, we have developed a direct one-step process design on an oxygenate production, namely, dimethyl ether (DME). DME can be used as a cetane-number booster for diesel, in addition to being capable of a substitute for liquefied petroleum gas (LPG). In order to analyze the independent chemical reactions involved in the reactor, it is necessary to carry out a study of the chemical reaction stoichiometry. And with a specific syngas feed, the following reactions are found: (1) CO2 + H2 = H2O + CO, (2) CO + 2H2 = CH3OH, and (3) 3CO + 3H2 = (CH3)2O + CO2. To gain an insight into the reactor design, we have also utilized the concept of thermodynamics, including equilibrium-constant method and the minimization of Gibbs free energy. Additionally, we have also united the pinch technology with the base-case design for heat exchanger network synthesis in order to compare the energy consumption and capital costs of the process with/without heat integration. Two kinds of software were used in the research—Aspen Plus and SuperTarget. The former was used for the process synthesis, design, and simulation; the latter was used to carry out the pinch analysis and the synthesis of heat exchanger network.
語言:en
ISSN:0306-2619
期刊性質:國外
收錄於:SCI
通訊作者:Chen, Hsi-Jen
審稿制度:是
國別:NLD
出版型式:電子版