Tong Kun Group Develops Circular Economy To Realize Green Production

< p > < strong > acetaldehyde recovery efficiency > /strong > /p >

< p > < < a href= > http://www.91se91.com/news/index_c.asp > chemical fiber manufacturing > /a > enterprises, polyester production process will be esterified reaction from the process tower condensate and release esterified water.

The esterified water contains a large amount of organic matter, and COD content is very high. In the original process, the valuable organic matter such as glycol and acetaldehyde in the waste water was burned in white, resulting in waste.

For this reason, Hengsheng company of Tong Kun group has implemented the acetaldehyde recovery project. The organic matter extracted from the esterified water is divided into acetaldehyde and ethylene glycol.

The acetaldehyde recovery unit adopts distillation process, and then distillate the tail gas condensate of acetaldehyde extraction to obtain ethylene glycol, which has no effect on the original process, but produces good economic benefits.

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< p > since the operation of the acetaldehyde recovery unit in Hengsheng company in May 2012, by the end of 2012, the output benefit has been nearly 6 million yuan after the cost is deducted.

On the basis of the success of Hengsheng company, three plants in Hengtong company were put into use in April this year, and the annual profit can reach 14 million 860 thousand yuan.

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< p > < strong > waste silk granulation is free from waste < /strong > < /p >

< p > with the enlargement of the size of Tong Kun group, the number of waste silk produced in the process of production is also increasing.

In order to re-use resources and promote the green development of enterprises, the Hengfeng plant of Tong Kun group has implemented recycled polyester resources (bubble material) comprehensive utilization project.

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< p > the project is to wash < a href= "http://www.91se91.com/news/" > waste silk > /a > into the cleaning pool, dehydrate the waste silk after cleaning, then split it with a wire splitting machine, and finally send it to the mixer for rolling material until it is condensed into a particle shape and then discharged.

The raw material for the regenerated polyester is 100% polyester waste silk, and no auxiliary material is needed. The production technology is simple, the program is short, the energy consumption is low, no waste and no two times pollution.

In this way, not only did waste silk waste, but also increased the efficiency of enterprises and promoted the sustainable development of enterprises.

It is understood that in 2012, the Tong Kun group spent 11547 tons of waste silk, producing 11673 tons of regenerated polyester, the output rate was 101%, and sales revenue reached about 84430000 yuan, and achieved good economic and social benefits.

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< p > < strong > energy consumption of waste heat power generation < /strong > < /p >

At present, the increasingly tight energy supply situation and severe environmental protection pressure have become an important factor restricting the economic and social development of our country. It is the general trend for enterprises to promote energy conservation and emission reduction and develop low-carbon economy. Therefore, Jiaxing petrochemical PTA project takes into account the utilization of waste heat when designing the project plan. P

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The oxidation reaction of < p > PTA device is a severe exothermic reaction process. In the oxidation reactor, the raw materials and catalysts and accelerators will react at a certain pressure and temperature to generate high temperature tail gas through the compressed air. The high temperature tail gas will generate a lot of by-product steam through the condenser cooling process.

In order to make rational use of these by-product steam and waste heat tail gas, Jiaxing Petrochemical Company commissioned SIEMENS Germany to design a 4 machine integrated compressor unit, namely steam turbine, air compressor, motor / generator and tail gas expander.

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After the completion of the P waste heat power generation project, the generating capacity will be 22000 kilowatts per hour and the maximum time will be up to 25000 kilowatts / hour. In addition to meeting the normal power consumption of the PTA main unit, there will be surplus electric power available for utilities in the whole plant.

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< p > < strong > steel tray protection wood < /strong > /p >

< p > at present, our country's < a href= "http://www.91se91.com" > chemical fiber < /a > production capacity reaches 41 million tons, among which the production of POY and FDY in the form of large package is especially outstanding.

However, the pallets in the industry are mainly wooden pallets at the cost of deforestation.

It is estimated that a large tree with a diameter of 20 centimeters for 10 years can only produce 6 wooden pallets, and the wooden pallet has a low repetition rate, only about two or three times.

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< p > Tong Kun group combines the characteristics of its own output and the large amount of its own consumption. It adopts reusable steel pallets.

Steel pallets weighing about 20 kg, relative to the wooden tray weight gain of only about 3 kg, has been widely used in the internal turnover frame.

The repeated use of steel pallets has more targeted reduction of packaging cost and product protection, effectively increasing the service life of the product turnover rack and saving wood resources.

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< p > Development > a href= "http://www.91se91.com" > circular economy < /a > is not only the general trend of China's economic and social development, but also the stress of sustainable development of enterprises. It has urgent practical significance to solve the bottleneck problem of China's resources for economic development.

Tong Kun group is taking practical actions to develop resources on the road of circular economy, improve the utilization ratio of resources, prevent and reduce the production of waste, step by step, and ultimately reduce the consumption of natural resources, and make enterprises truly become harmonious enterprises and green enterprises.

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