A new meta-xylene process goes commercial
Article Abstract:
Sulzer Chemtech has developed a process for recovering meta-xylenes from mixed xylenes, which uses a combination of distillation and melt crystallization. The novel method uses a stream of mixed xylenes with a 60 to 70% meta content, such as raffinate from a para-xylene plant, which is first distilled to eliminate the ethylbenzene content. The mixed xylene stream is distilled further to remove light hydrocarbons and ortho-xylene, increasing the meta-xylene content of the stream to about 95 wt%.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 2000
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Heavy oil process can cut costs by up to 70%
Article Abstract:
Synergy Technologies has developed a new process for upgrading crude oils with 7 to 15 API gravity to 30-plus API gravity using a 1/2-bbl/d pilot unit. Its CPJ process exposes preheated heavy oil to steam for a few milliseconds in the reactor, which cracks the large molecules cleanly, with minimal gas production and carbon formation of coking and hydrocracking. Synergy says the CPI process is 70% cheaper than existing coker-hydrocracking methods since it does not use hydrogen or high pressure.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 2000
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