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Home > News > Experts: coal problem puzzles coal to ethylene glycol industry
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Experts: coal problem puzzles coal to ethylene glycol industry

Experts: coal problem puzzles coal to ethylene glycol industry
Author: Yang Yang, 2018, 09, 19, source: China Chemical daily
Technology is not "necking", coal glycol glycol has no worries.
Sinochem Xinyun Coal to Ethylene Glycol is one of the few industries in China's petrochemical industry which are not subject to foreign restrictions and do not have the problem of "technology jam" and the technology has approached the world's leading level. However, the development is now suffering from the problems of rising coal prices and difficult implementation of coal resource allocation. This is the reporter from September 16 to 18 in Hefei held the Fifth National Synthetic Gas to Ethylene Glycol Technology Exchange Annual Meeting of the news.
Gu Zongqin, vice-president of the China Petroleum and Chemical Industry Federation and President of the Petroleum and Chemical Planning Institute, pointed out in the keynote report that the coal-based ethylene glycol process is relatively short, with relatively small investment and relatively strong profitability. The domestic related technologies are becoming more and more mature, and the product quality can partly or completely replace the petroleum-grade ethylene glycol. Alcohol is applied to downstream industries such as staple fiber, bottle flake, filament polyester, etc. But he also stressed that the development of coal-to-ethylene glycol industry is still constrained by many factors, including several coal-related factors, such as the implementation of the relevant policy of coal to capacity, domestic coal prices, coal-to-oil costs rose by about 600 yuan / ton, coal-to-gas costs increased by 450 yuan / cubic meter, coal-to-ethylene glycol via Economic efficiency has also been reduced accordingly; new coal production capacity control, coal mining area overall planning approval, capacity approval and other further large-scale delays, making it difficult to implement the allocation of coal resources for a number of demonstration projects of coal deep processing; some local governments have issued relevant policies, requiring enterprises and parks to reduce coal consumption, and confused "raw materials" "Coal" and "fuel coal" index have great influence on the industry. In addition, EIA approval is more difficult, many projects are in a standstill due to the difficulty of EIA approval, and there is even a phenomenon that EIA indicators need to be purchased and bidded in some places in China. A 200,000 ton/year coal-based ethylene glycol project may increase investment by 100-200 million yuan; a number of large-scale oil refining projects will speed up construction, and ethylene glycol will be added. Market pressure.
Considering the return on investment and tax, the raw material cost of ethylene glycol production is about 70%; the raw material cost of coal-based ethylene glycol production is only about 7% after the by-product income is removed, and the fixed cost is about 80%. The effect of alcohol is very important. However, from the static and dynamic analysis, when the price of crude oil is higher than 60 U.S. dollars / barrel, the price of raw coal should be lower than about 150 yuan / ton, and the price of raw coal should be lower than about 250 yuan / ton when the price of crude oil is higher than 70 U.S. dollars / barrel.
Yao Yuangen, a researcher at the Fujian Institute of Material Structure, Chinese Academy of Sciences, told reporters that there are many suppliers of coal-based ethylene glycol technology, but the technology is basically the same, all of them are oxalate hydrogenation routes, and the related equipment also has a widespread problem of homogenization. In order to cope with the impact of various external factors such as coal price, oil price, the industry still needs to speed up the pace of technological upgrading, and further improve product quality and stability.
According to Anfu, in 2017, China's ethylene glycol production capacity of 8.81 million tons per year, 37% of coal-based ethylene glycol, and ethylene glycol import dependence is large, but also a risk. It is estimated that by 2020, the domestic ethylene glycol production capacity will increase by about 8 million tons per year, more than half of which will be coal-based ethylene glycol; by 2025, the domestic ethylene glycol production capacity will reach 14 million tons per year, and the apparent consumption will reach 17.5 million tons.
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