World's first coal-based methanol synthesis oil plant achieves stable operation
Sinochem Xinxun is the world’s first coal-based methanol-based synthetic oil company, the 100,000-ton/year coal-to-coal synthetic oil demonstration project of Shanxi Coal Group Tianxi Coal-to-oil Company, which produced the first barrel of qualified coal synthetic oil from last year. Later, after more than nine months of pilot production operation, the entire system has achieved stable operation over a long period of time, and poor quality coal has turned into chemical products such as methanol, gasoline, and tetramethylbenzene. At present, the company has been approved by the Alcohol Office of Shanxi Province and is actively developing methanol gasoline products.
The project is the key to the creation of the largest coal chemical enterprise group in China by the Jinmei Group's “Basic Chemicals, Fine Chemicals, and Coal-to-Oil Productsâ€. Its exemplary meaning is that the raw coal used is the “three highs (high sulfur content, high ash content, high ash melting point)â€, which is commonly known as “smelly coalâ€, and has no separate coal for exploitation and direct use; at the same time, it has innovated in China. The indirect coal-to-oil production process lays the foundation for the development of coal-to-oil from demonstration projects to large-scale industrialization. The coal-based synthetic oil produced by Tianxi was tested by professional inspections in Taiyuan and Luoyang and identified as high-cleaning fuel for vehicles with low olefins, long induction period, lead-free, sulfur-free and residue-free, fully meeting the national III standard. , The product shows a broad market prospect.
According to Cao Yongkun, general manager and party committee secretary of Tianxi Coal-to-oil Division, the Jincheng mining area underground has not only high-quality anthracite coal, but also the poor quality of the No. 15 coal geological reserves is quite rich, with statistics reaching 4.2 billion tons. This project is a poor quality for Jincheng area and even the whole country. Coal clean development and utilization explored a new road. In particular, it provides advanced and reliable technical means for the rational utilization of “Three High†low-quality coal, making Tianxi the first factory in the world to achieve the “three-high†inferior anthracite oil industrialization and the first coal-based multi-generation demonstration base.
The project consists of two parts: coal to methanol and methanol to oil. “We have adopted our own research and development of ash-melting fluidized bed pulverized coal gasification technology to transform the 'three high' inferior coal into the first in the world to use low-quality pulverized coal to produce methanol,†says Cao Yongkun. Since the start of the cold test in early 2009, the company has carried out more than 110 transformation projects and continuously improved and improved the system. At present, the ash fusion gasifier operates stably, and it has been able to achieve 5 furnaces and gas operation.
The MTG (fixed-bed methanol-to-gasoline) technology is the core process of the latter half of coal-to-liquids and is the bottleneck for getting through the entire system. This technology was introduced from Mobil Corporation in the United States, but it has not been used in the world for more than 20 years. Tianxi activated this world-wide technology and achieved industrialization. It not only produced a higher-quality No. 93 gasoline than similar products, but also produced a variety of high-end fine chemicals such as liquid nitrogen, liquid oxygen, and mesitylene. product.
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