According to incomplete statistics, China now has about 1,800 large, medium and small chemical fertilizer plants, with an annual production capacity of more than 25 million tons of fertilizer, including an annual production capacity of about 20 million tons of nitrogen fertilizer.It is estimated that the annual production capacity of chemical fertilizer will reach 150 million tons by 2005.By 2005, about 200 centrifugal compressors will be needed for the complete sets of syngas, ammonia, natural gas and carbon dioxide gas.
Ethylene production levels represent a national petrochemical industry development level, is expected to 2005, the annual output of ethylene will reach about 4 million tons.Take the ethylene plant with an annual output of 300,000 tons as an example. According to the calculation of 3 centrifugal compressors for each unit, about 40 compressors for cracking gas, propylene and ethylene units will be needed by 2005.
In 2005, large and medium-sized cities across the country will basically achieve coal gasification, with an urban gas rate of 75%.If the capacity of 500,000 cubic meters /d is the standard type, 60 air compressors are needed according to the calculation of one compressor per set.In addition, coal deep processing also needs a certain number of compressors, a total of about 100 are expected to be needed.
The current scale of domestic fertilizer plant is limited to the annual output of 300,000 tons, and the annual output of 600,000 tons is under construction.Foreign fertilizer plants have already formed an annual output of 600,000 tons of production scale, is now preparing to annual output of 900,000 tons of large equipment.