en.Wedoany.com Reported - On the morning of April 9, the comprehensive application project for carbon-based new materials of China Wuhai Anlun New Technology Co., Ltd. commenced construction at the Wuhai High-tech Industrial Development Zone. Wuhai Anlun New Technology Co., Ltd. is a technology-based enterprise jointly established by Shanxi Anlun Chemical Co., Ltd. and Inner Mongolia Guangju New Materials Co., Ltd.
The comprehensive application project for carbon-based new materials is planned to cover an area of approximately 703 mu, with a total investment reaching 3.17 billion yuan. Upon completion and operation, it is expected to achieve an annual total output value of about 6 billion yuan. The main construction content of the project encompasses four core units and supporting facilities, including an annual production capacity of 280,000 tons of carbon black, an annual production capacity of 2.63 million tons of upgraded coal pyrolysis, an annual processing capacity of 300,000 tons of high-temperature coal tar and 150,000 tons of low-temperature coal tar, as well as supporting facilities for an annual production of 150,000 tons of LNG (liquefied natural gas) and other auxiliary equipment.
The project directly utilizes coal tar produced by Inner Mongolia Guangju New Materials Co., Ltd. as raw material for carbon black production through pipeline transportation, achieving efficient local resource utilization. By introducing the patented "Guofu Furnace" technology for low-rank coal graded utilization, it not only provides a stable gas source for carbon black production but also fully consumes the carbon black tail gas generated during the carbon black production process, realizing waste resource utilization. Simultaneously, surplus pyrolysis gas can be used to produce LNG. The produced high-quality upgraded coal is supplied as hot char to nearby enterprises via short-distance transportation, effectively eliminating the need for downstream companies to reheat and dry carbon materials, significantly reducing energy consumption and improving production efficiency. After the project is operational, the high-quality upgraded coal produced will effectively fill the gap for related products in Wuhai City, empowering and enhancing the quality and upgrading of the city's traditional industries.
The patented "Guofu Furnace" technology was independently developed by Beijing Guodian Futong Technology Development Co., Ltd. In collaboration with Shaanxi Coal Group, the 500,000-ton long-flame coal pyrolysis process demonstration project of Shaanxi Yulin Shaanmei Qianyuan Company underwent a 72-hour on-site assessment from June 25 to 29, 2018, and passed the scientific and technological achievement appraisal organized by our association on July 31, 2018. Nine authoritative experts in the coal chemical field, including Academician Xie Kechang, Academician Jin Yong, and Academician Ni Weidou, provided the appraisal opinion that its "comprehensive performance and indicators have reached the internationally leading level." It has obtained 12 national invention patents. The gas heat carrier pyrolysis process technology has received the First Prize for Science and Technology Progress from the China Petroleum and Chemical Industry Federation, the First Prize for Science and Technology from the China National Coal Association, and the First Prize for Science and Technology Progress from Shaanxi Province.
The main characteristics and advantages of the externally heated, internally heated vertical Guofu Furnace technology are:
(1) Adopts segmented multi-layer processing technology. The segmented design significantly reduces the load on the pyrolysis section. The multi-layer air intake, gas distribution, and gas collection structure can enhance the input capacity of the heat load and the gas-solid heat exchange intensity, achieving homogeneous heat exchange. The single system processing capacity reaches 600,000 tons/year.
(2) Adopts a segmented multi-layer approach to reduce gas resistance and gas flow velocity within the bed layer, significantly lowering the dust content carried in the gas. Combined with efficient separation technology for oil, dust, and gas outside the furnace, it has strong adaptability to the particle size of the feed material, can process raw materials above 1mm, and results in low dust content in the tar.
(3) When using flue gas as the heat carrier, precise control of the gas temperature entering the furnace is achieved through the external heating, internal heating method, reducing tar secondary cracking and fixed carbon loss in the semi-coke.
(4) When high-quality gas is required as a product, utilizing the hydrogen-rich gas heat carrier regenerative heating furnace technology, the effective components of the pyrolysis gas reach 84.4% (CH4 around 30%, H2 content). By altering the pyrolysis atmosphere, it effectively inhibits the polymerization of active fragments forming oil and tar cracking, achieving a tar yield of 87.2% of the Gray-King assay value.
(5) The vertical pyrolysis rectangular furnace is designed from top to bottom in separate sections for drying, pyrolysis, and cooling, operating independently. This effectively reduces the production of phenolic ammonia wastewater while increasing the tar concentration in the outlet gas from the pyrolysis section, which is beneficial for tar recovery.
(6) Relying on the segmentation technology, the pyrolysis section can be set up in multiple segments according to product needs. By adjusting the heat carrier temperature in each segment, precise control over the quality of pyrolysis products is achieved. The tar generated from pyrolysis is promptly exported from the furnace, reducing tar cracking and ensuring a high tar yield.
(7) Adopts a gas dry quenching process for coke, improving the quality of semi-coke, with its moisture content controllable to a minimum below 2%. This saves water resources, recovers the heat from the semi-coke, and improves the system's thermal efficiency.
(8) Adopts a vertical rectangular structure where materials move downward by gravity from top to bottom, with no moving equipment for material transport. It offers the advantages of small footprint, low operating costs, and reliable operation.
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