Wison's Coal-Chemical Phase II Plant Successfully Passed 168h Full Load Operation Test

Sept. 15, 2009, 14:00. The Phase II coal-chemical plant of Wison (Nanjing) Chemical Co., Ltd. successfully passed the 168-hour full load performance test and was officially put into commercial operation, following its successful production of carbon monoxide with a purity of 99.1% at 7:00, Sept. 8.
 

The oxygen needed in the coal gasification process of the plant comes from an Air Products and Chemicals facility in the park. Most of the plant’s products are supplied directly to neighboring enterprises in the park, such as Celanese, BASF-YPC, Ling Tian Fine Chemical, Bluestar New Chemical Materials etc., for downstream chemicals production. The waste water, gas and residues are also full recycled. A long-term contract has been signed with a cooperation party for residues treatment, in which aluminum oxide and silicon dioxide can be extracted with the use of new technologies. A small amount of flue gas from the plant is also collected to be used as fuel. The black wastewater generated in the production is recycled for slurry making. And a very small amount of wastewater is delivered to a Sembcorp facility after preliminary treatment. These arrangements not only make full use of resources but also minimize the hazards to the environment.
 

The Phase II project, from infrastructure design to construction, was completed independently by Wison Engineering Ltd. Operations and processes in Phase II were optimized on the basis of the Phase I experience. Quality carbon monoxide came out successfully only 20 hours after raw material loading and the plant reached its full load in 24 hours. The plant reduced greatly the time needed from start-up to production and broke the records set by the Phase I plant – 58 hours from start-up to production of quality methanol and 69 hours from start-up to production of quality carbon monoxide. With these achievements, Wison has become one of the few companies that have the capabilities of coal chemical technology research and development, coal chemical plant engineering, construction and project management, plant start-up and production operation.