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概述了近年来对二甲苯的市场需求、对芳烃抽提、甲苯歧化与烷基化转移、二甲苯异构分离等国内外芳烃生产技术进展并对其进行分析。新技术甲醇甲苯制PX技术(MTPX),最大的优势是甲苯的利用率高、几乎没有廉价的副产物碳九、碳十等产品,并且PX的纯度将会超过90%,效益优势比较明显,通过进一步研究,可以作为将来芳烃的转化关键技术。
The market demand for para-xylene, the progress of aromatics extraction, toluene disproportionation and alkylation transfer, xylene isomerization separation and other domestic and foreign aromatics production technologies are summarized and analyzed. New Technology Methanol Toluene PX technology (MTPX), the biggest advantage is the high utilization of toluene, almost no cheap by-products of carbon nine, carbon ten and other products, and the purity of PX will exceed 90%, the benefits of more obvious advantages, Through further research, it can be used as a key technology for the conversion of aromatic hydrocarbons in the future.