China's master xylene production know-how
Come from: China chemical industry news
Domestic first set of toluene methanol methyl chemical directory device industrial operation test has been completed and the first in China with toluene methylation methanol proprietary technology worldwide, it is coming from yangzi petrochemical news yesterday. The success of the device industrial operation test,marks sinopec became the world's first with toluene methylation methanol proprietary technology company,has opened up the oil resource and coal resources combination and the comprehensive utilization of new ways.
The device is provided by Shanghai petrochemical research institute technology package and proprietary catalyst, luoyang engineering company to undertake engineering design, yangzi petrochemical company is responsible for the plant construction work, driving scheme preparation and feeding trial production. The personage inside course of study thinks, methanol as a chemical derivatives, the cost is relatively low, toluene methylation methanol technology contributed to the combination of coal chemical industry and petrochemical industry, realized the high value-added application of chemical products, is a highly economic and social benefits of xylene production new routes.
According to introducing, toluene methanol methanol as methylating reagent in methylation process, xylene, toluene and efficient can be converted to. The device is relying on the Yangtze petrochemical existing 200000 tons/year toluene shape-selective disproportionation device modification and toluene in petroleum products and chemical products of methanol as raw materials, to produce pure terephthalic acid (PTA) raw material of xylene as the target product. Device design toluene processing capacity of 200000 tons/year, high-quality BTX aromatics can output 240000 tons/year, after put into operation is expected to significantly reduce p-xylene production cost.
According to understand, as domestic capacity expansion of PTA plant, p-xylene and PTA downstream mismatches contradictions increasingly prominent, the downstream PTA overcapacity, upstream px is a shortage of resources.
Since the 1970 s, several companies at home and abroad to research and develop the toluene methylation methanol, so far no reports of commercial operation. Sinopec Shanghai petrochemical research institute in 2009 project in toluene methylation technology industrial experimental study lateral line. They have completed the industrial side test and 200000 tons/year technology package development and design work, successfully developed the high performance of toluene methylation catalyst, bed reaction process, wastewater treatment technology, thermal combination and low-temperature heat utilization technology and so on, applied to cover the catalytic materials, catalysts and technology patents at home and abroad, with the toluene methylation in international technology industrialization of technical conditions.