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The medium-temperature coal tar lightening project relies on the abundant local coal resources in Yulin, and adopts the vertical furnace retorting process to produce blue carbon, coal tar, and coke oven gas, and produces hydrogen gas from coke oven gas, and then uses two-stage hydrogenation and tail oil cracking technology. The coal tar and hydrogen are hydrogenated under the action of a catalyst to distill off fuel diesel, naphtha, and liquefied gas to achieve integration of coal-coke-oil production and increase the added value of coal tar. At the same time, the waste gas in the production process can be recycled and used, and the industrial waste water can be discharged to zero, which eliminates the pollution problems existing in traditional coal tar processing.
Coal tar is an oily liquid formed during the coking process and consists of more than 500 aromatic hydrocarbons. It has not yet been fully utilized in the industry. According to reports, the two hydrogenation tailing oil cracking technologies adopted by Shenmu Jinjie Tianyuan Chemical Co., Ltd. are the first in China, and the conversion rate of coal tar utilization reached 93%, that is, 1 ton of coal tar can produce 930 kilograms of refined oil.
At present, the medium-temperature coal tar lightening device of 250,000 tons/year is being debugged, and the daily production of more than 200 tons of fuel diesel oil and naphtha will soon realize full-load production.
Experts in the industry believe that the commissioning of the medium-temperature coal tar lightening project, which can be called “Yulin version of coal-to-oilâ€, opens up new ways for deep processing and utilization of coal and coal tar, and extends the coal chemical industry chain, which is of significance for the development of China’s oil alternative resources. major.
Shenmu Jinjie Tianyuan Chemical Co., Ltd. is a private enterprise engaged in the deep processing of coal and coal tar, and the development of coal chemical products. It produces 600,000 tons of charcoal annually. The medium-temperature coal tar lightening project has a total scale of 500,000 tons/year and a total investment of 980 million yuan. The first phase of the project (250,000 tons) was constructed in October 2006, and the hydrogen production plant was driven in March 2008. On the 7th, qualified oil products were produced. After the project is completed and put into production, it can process 500,000 tons of high-quality coal tar, annual production of 465,000 tons of oil, 29,000 tons of liquefied gas, and 70,000 tons of petroleum coke. The annual sales income can reach 2.89 billion yuan.
I add new routes to coal-to-oil technology
Known as the "Yulin version of coal for oil production", the 250,000 tons/year medium-temperature coal tar lightening project with independent intellectual property rights has been successfully tested, and qualified oil products have been produced. The equipment is currently being commissioned and it is expected to achieve coal tar addition. Hydrogen produces fuel products, adding new routes to China's coal-to-oil technology. This is the reporter learned from Shaanxi Yulin Shenmu Jinjie Tianyuan Chemical Co., Ltd. last weekend.