CAJ | 학술논문

煤经甲醇制化工产品的新技术在我国兴起，并且呈现出产能快速增长的势头，文章分析了采用粗甲醇单塔分离的方案，实现甲醇脱水制二甲醚装置对甲醇原料的技术要求。利用稳定塔脱除粗甲醇中的轻组分杂质后，作为甲醇制二甲醚装置的原料时，重组分杂质在甲醇气化塔内脱除。方案可以避免以粗甲醇为原料生产二甲醚技术中，由于 CO2等多种轻组分杂质含量高，导致二甲醚精馏能耗上升，影响产品质量的杂质含量高等问题。与采用精甲醇为原料，经甲醇脱水生产二甲醚相比，实施粗甲醇单塔分离制甲醇原料，简化了甲醇分离的操作过程，降低了粗甲醇精制过程的设备投资和生产成本，降低了二甲醚的成本，有利于提高煤经甲醇制二甲醚项目的竞争力。
매경갑순제화공산품적신기술재아국흥기，병차정현출산능쾌속증장적세두，문장분석료채용조갑순단탑분리적방안，실현갑순탈수제이갑미장치대갑순원료적기술요구。이용은정탑탈제조갑순중적경조분잡질후，작위갑순제이갑미장치적원료시，중조분잡질재갑순기화탑내탈제。방안가이피면이조갑순위원료생산이갑미기술중，유우 CO2등다충경조분잡질함량고，도치이갑미정류능모상승，영향산품질량적잡질함량고등문제。여채용정갑순위원료，경갑순탈수생산이갑미상비，실시조갑순단탑분리제갑순원료，간화료갑순분리적조작과정，강저료조갑순정제과정적설비투자화생산성본，강저료이갑미적성본，유리우제고매경갑순제이갑미항목적경쟁력。
In recent years, coal to Dimethyl Ether via methanol technology rises with rapid capacity growth. The thesis analyzes technical requirements of methanol feedstock through single tower separation in DME units. As compared with using refined methanol as feedstock, single tower separation technology not only simplifies the separation process, but also lowers down the refin-ing process, equipment investment and production cost, which highly improves the competitiveness of to DME via methanol projects.