Largest in China Methanol Project with Coproduction of LNG Comes on Stream in Xiaoyi

Largest in China Methanol Project with Coproduction of LNG Comes on Stream in Xiaoyi

The phase I project rated at 0.6 Mt/a of methanol with coproduction of 0.4 billion m3of LNG owned by the Pengfei Group has been put on stream in the 10-million-ton class new coal chemical park of the Xiaoyi city. It is learned that this is the largest in China methanol production project with coproduction of LNG manufactured according to the same technical route.

This project propped up by the surplus coke oven gas formed in the course of high-temperature coking for manufacture of 5.0 Mt/a coke from the Pengfei Group will first separate the LNG gas through subjecting coke oven gas to compression, purification, decarburization, and cryogenic liquefaction at -170 ℃. The remaining hydrogen, CO and CO2from the decarburization unit after compression and mixing are converted in the methanol synthesis system to the product—methanol. This process technology has made changes in the traditional methanol process fow diagram with coproduction of synthetic ammonia. When the total investment cost remains unchanged, the profts of the new process fow diagram will be increased more than twofold.