Abstract 1,3-BD production process from lignin consisting of four unit operations such as gasification, dimethyl ether (DME) synthesis, n-butene synthesis, and isomerization/dehydrogenation, was simulated. This process could be designed as a renewable energy system that can not only produce 1,3-BD but also self-supply almost all the heat and power for the operation. The balance of payment (BP), which is the income incurred from processing a unit weight of lignin, was employed as the economic efficiency of the process. The effect of the reaction conditions in the DME to n-butene synthesis step (the third step) on the BP was investigated. Since few catalysts have been reported for synthesizing n-butene from DME, realistic reaction conditions and catalytic performance were set. An increase in the DME content of the feed gas and a decrease in the reaction pressure led to an increase in the n-butene yield and a decrease in the power, followed by an increase in the 1,3-BD yield and BP. Considering the expected power selling price after the termination of the Feed-in-Tariff scheme, the 1,3-BD production process could have comparable BPs with gasification power generation as a representative competitive process.

中文翻译：

---

从二甲醚合成正丁烯在木质素生产 1,3-丁二烯中的评价：技术经济分析

摘要 模拟了由气化、二甲醚 (DME) 合成、正丁烯合成和异构化/脱氢四个单元操作组成的木质素 1,3-BD 生产过程。这个过程可以被设计成一个可再生能源系统，它不仅可以生产 1,3-BD，而且可以自给运行所需的几乎所有热量和电力。国际收支 (BP)，即处理单位重量木质素所产生的收入，被用作该过程的经济效率。研究了 DME 到正丁烯合成步骤（第三步）中反应条件对 BP 的影响。由于很少有用于从 DME 合成正丁烯的催化剂的报道，因此设定了现实的反应条件和催化性能。进料气中二甲醚含量的增加和反应压力的降低导致正丁烯产率增加和功率降低，随后1,3-BD产率和BP增加。考虑到上网电价计划终止后的预期电力销售价格，1,3-BD 生产过程可能具有可比的 BP，气化发电作为具有代表性的竞争过程。