Located in the southeast of Shanxi Province, Gaoping City is rich in coal, iron, bauxite, tweezers, pyrite, limestone, and other resources on this land, which covers approximately one ten-thousandth of the country's total area. Shanxi Jinfeng Coal Chemical Co., Ltd. is located here.
When entering Jinfeng, you will find rows of neat workshops and brand new modern installations. Wang Jianwu, general manager and party secretary of the company, told reporters that Jinfeng Company is a typical enterprise that promotes the application of advanced wastewater treatment technology in Shanxi, with urea and methanol as the main products. At present, it has formed a production capacity of 650,000 tons/year total ammonia and 1.1 million tons/year urea. It consumes 1 million tons of raw coal and fuel coal annually, and is also a large consumer of electricity. In recent years, Jinfeng Company has intensified its technological transformation, applied a large number of effective new technologies, new processes, and new equipment, continuously eliminated backward technologies and equipment, and achieved certain results in energy conservation and emission reduction.
It is understood that Shanxi Jinfeng Coal Chemical Industry Co., Ltd. has made energy saving and emission reduction an important breakthrough in the construction of a second phase project of 360,000 tons of synthetic ammonia and 520,000 tons of urea. It has selected five advanced domestic environmental protection and energy saving technologies. Technology, the pollution emissions will be reduced by more than 25%. According to reports, in the construction of chemical fertilizer projects, the company selected the largest domestic 8.5-meter diameter gas-fired combustion furnace and a 60-ton heat recovery boiler to make the air-burning gas more complete and the waste heat recovered more completely; the 75-ton/hour circulating fluidization was selected. The bed steam boiler adopts domestic advanced environment-friendly bag filter to improve the coal utilization rate and reduce the emission of pollutants in flue gas. The centrifugal CO2 compressor is driven by steam turbine, which prolongs the equipment operation cycle and reduces Power consumption and maintenance costs; Urea project uses an improved CO2 stripping process to ensure that the ammonia consumption, electricity consumption and steam consumption indicators meet the best period.
The renovation of gasifiers is a top priority for Jinfeng's energy conservation efforts. The transformation includes the realization of a 7.5-kw intelligent converter controller retrofit to DCS, heightening of the gasifier furnace, and modification of the air blower to the auxiliary drive of the steam turbine. The gas production per single furnace increases by 500 to 800 cubic meters per hour. Can save electricity costs 400,000 yuan / year.
The replacement of copper-washing refining technology with high-pressure methanation technology is another energy-saving achievement of Jinfeng Company. The technical personnel carried out the transformation of high-pressure methane instead of copper washing process on the system, using the original old system as a set of methanol equipment, purchased three additional equipments, used an idle ammonia cooler, replaced some pipe fittings, and partially retained the electrical instrumentation. Use, a total investment of 29.71 million yuan, put into operation after a good run. It can not only save energy, save raw materials, but also have a good environmental protection effect. It can save costs 5.79 million yuan / year, and emission reduction emissions 5,000 tons / year.
In order to solve the problem of over 80,000 tons of system chiller overload, the company has added a lithium bromide refrigeration unit to increase the amount of compressor air pumping, reduce the amount of decarbonization absorption liquid circulation, reduce the ammonia cooling, and reduce the load on the freezer to increase production. The obvious effect of reducing power consumption, especially in the hot season, is more prominent. After the unit was put into operation, the temperature of the gas entering the compressor was reduced by 5°C, the total ammonia production was increased by 3%, and the annual economic benefit was calculated at 10 months, which could increase by RMB 6.3 million.
According to reports, currently underway in the pressure swing adsorption removal of decarbonized high-flash carbon dioxide project, is also one of the key projects of energy conservation and emission reduction of Jinfeng Company. Some of the equipment has arrived one after another and the installation work is intensifying. After the completion of this project, not only will the compressor's energy consumption be greatly reduced, but it will also greatly reduce the carbon dioxide emissions.
Wang Jianwu said that the company is confident to fully realize the "Eleventh Five-Year" energy-saving emission reduction targets. By the end of 2010, the company's comprehensive energy consumption per million yuan output value will reach 4.50 tons of standard coal; the industrial energy consumption per million yuan will reach 20.10 tons of standard coal; Million yuan output value of electricity consumption reached 6423 kwh; unit product energy consumption of 1253 kg standard coal; chemical oxygen demand total emissions ≤ 70 tons; total carbon dioxide emissions ≤ 1150 tons; ammonia emissions and other indicators to meet the national sewage standards .
When entering Jinfeng, you will find rows of neat workshops and brand new modern installations. Wang Jianwu, general manager and party secretary of the company, told reporters that Jinfeng Company is a typical enterprise that promotes the application of advanced wastewater treatment technology in Shanxi, with urea and methanol as the main products. At present, it has formed a production capacity of 650,000 tons/year total ammonia and 1.1 million tons/year urea. It consumes 1 million tons of raw coal and fuel coal annually, and is also a large consumer of electricity. In recent years, Jinfeng Company has intensified its technological transformation, applied a large number of effective new technologies, new processes, and new equipment, continuously eliminated backward technologies and equipment, and achieved certain results in energy conservation and emission reduction.
It is understood that Shanxi Jinfeng Coal Chemical Industry Co., Ltd. has made energy saving and emission reduction an important breakthrough in the construction of a second phase project of 360,000 tons of synthetic ammonia and 520,000 tons of urea. It has selected five advanced domestic environmental protection and energy saving technologies. Technology, the pollution emissions will be reduced by more than 25%. According to reports, in the construction of chemical fertilizer projects, the company selected the largest domestic 8.5-meter diameter gas-fired combustion furnace and a 60-ton heat recovery boiler to make the air-burning gas more complete and the waste heat recovered more completely; the 75-ton/hour circulating fluidization was selected. The bed steam boiler adopts domestic advanced environment-friendly bag filter to improve the coal utilization rate and reduce the emission of pollutants in flue gas. The centrifugal CO2 compressor is driven by steam turbine, which prolongs the equipment operation cycle and reduces Power consumption and maintenance costs; Urea project uses an improved CO2 stripping process to ensure that the ammonia consumption, electricity consumption and steam consumption indicators meet the best period.
The renovation of gasifiers is a top priority for Jinfeng's energy conservation efforts. The transformation includes the realization of a 7.5-kw intelligent converter controller retrofit to DCS, heightening of the gasifier furnace, and modification of the air blower to the auxiliary drive of the steam turbine. The gas production per single furnace increases by 500 to 800 cubic meters per hour. Can save electricity costs 400,000 yuan / year.
The replacement of copper-washing refining technology with high-pressure methanation technology is another energy-saving achievement of Jinfeng Company. The technical personnel carried out the transformation of high-pressure methane instead of copper washing process on the system, using the original old system as a set of methanol equipment, purchased three additional equipments, used an idle ammonia cooler, replaced some pipe fittings, and partially retained the electrical instrumentation. Use, a total investment of 29.71 million yuan, put into operation after a good run. It can not only save energy, save raw materials, but also have a good environmental protection effect. It can save costs 5.79 million yuan / year, and emission reduction emissions 5,000 tons / year.
In order to solve the problem of over 80,000 tons of system chiller overload, the company has added a lithium bromide refrigeration unit to increase the amount of compressor air pumping, reduce the amount of decarbonization absorption liquid circulation, reduce the ammonia cooling, and reduce the load on the freezer to increase production. The obvious effect of reducing power consumption, especially in the hot season, is more prominent. After the unit was put into operation, the temperature of the gas entering the compressor was reduced by 5°C, the total ammonia production was increased by 3%, and the annual economic benefit was calculated at 10 months, which could increase by RMB 6.3 million.
According to reports, currently underway in the pressure swing adsorption removal of decarbonized high-flash carbon dioxide project, is also one of the key projects of energy conservation and emission reduction of Jinfeng Company. Some of the equipment has arrived one after another and the installation work is intensifying. After the completion of this project, not only will the compressor's energy consumption be greatly reduced, but it will also greatly reduce the carbon dioxide emissions.
Wang Jianwu said that the company is confident to fully realize the "Eleventh Five-Year" energy-saving emission reduction targets. By the end of 2010, the company's comprehensive energy consumption per million yuan output value will reach 4.50 tons of standard coal; the industrial energy consumption per million yuan will reach 20.10 tons of standard coal; Million yuan output value of electricity consumption reached 6423 kwh; unit product energy consumption of 1253 kg standard coal; chemical oxygen demand total emissions ≤ 70 tons; total carbon dioxide emissions ≤ 1150 tons; ammonia emissions and other indicators to meet the national sewage standards .
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