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This post was last edited by liaifeng on 2018-7-28 at 07:25. Steel plates for domestic Fischer-Tropsch reactors pass inspection. Author/Source: Date: 2018-06-28. Views: 23. At the end of last month, the SA387Gr11CL2 steel plates used in Fischer-Tropsch reactors, which are key components in coal-to-oil production, were approved by experts following research and development carried out jointly by WuYang Iron and Steel Co., Ltd. under Hebei Iron and Steel Group and the Coal-to-Oil Division of Shenhua Ningxia Coal Industry Group Co., Ltd.; this development further contributes to the localization of petrochemical equipment in China. An expert panel organized by the Office of Major Equipment of the China National Machinery Industry Federation and the Pressure Vessel Branch of the Chinese Mechanical Engineering Society listened to the reports on the development of steel plate technology, third-party inspection reports, and novelty search reports presented by Hegang Wugang and the Coal-to-Oil Branch of Shenhua Ningxia Coal Industry Group Co., Ltd. Following inquiries and discussions, the panel issued its evaluation: the J coefficient, X coefficient control, mechanical properties, low-temperature impact toughness, and other characteristics of these steel plates are on par with those produced by world’s leading steel manufacturers, with certain indicators such as the J coefficient being even better than those of foreign steel plants. The special steel plates for the 8 Fischer-Tropsch reactors, which constitute the core unit of Shenhua Ningmei Group’s 4 million tons per year coal-to-oil production facility, are key domestically produced materials urgently needed for this project. The requirements for this type of steel plate are as follows: the material should be SA387Gr11, a hydrogen-resistant chromium-molybdenum steel with high density and good internal quality; it must also possess adequate toughness, as well as uniform properties in terms of surface condition and thickness. Stable performance at medium and high temperatures is required, with a maximum simulated post-weld heat treatment temperature of 690°C, followed by a holding time of 24 hours. The impact toughness at -10°C after prolonged simulation of post-weld conditions should be no less than 80 joules. These design requirements make sheet production extremely difficult. Hebei Iron and Steel Wugang adopted key process measures such as optimized composition design, grain refinement, uniform microstructure, and simulation of post-weld heat treatment, to successfully produce 132-mm-thick SA387Gr11CL2 hydrogen-service steel plates that meet the required performance standards. Yuan Jincheng, director of the company’s Container Steel Research Institute, told reporters that the hydrogen-ready steel plates produced by HB Wugang have currently been used in the FTO reactors of Shenhua Ningmei, Shaanxi Future Energy, and Shanxi Lu’an Coal-to-Oil projects, with a consumption volume of 40,000 to 50,000 tons. It is reported that the hydrogen-resistant steel plate SA387Gr11CL2 is also widely used in gasification furnaces. Its thickness ranges from 70 to 132 millimeters, with a supply volume of nearly 10,000 tons. Its quality meets the requirements of such projects, and its various performance parameters are at the international advanced level. In the development of high-thickness premium hydrogen-resistant chromium-molybdenum steel plates, mass production of such plates with thicknesses of 168 mm, 174 mm, and 177 mm has been achieved. Steel plates with a thickness of 162 mm and 177 mm, made of SA387Gr11CL2, have enabled the localization of steel used in ammonia synthesis towers in China. The thickest domestic chromium-molybdenum steel plates, with a thickness of 200 millimeters, resistant to hydrogen, have already been used in the Keko Refining project as part of Sinopec’s world-class Maozhan refining complex, for manufacturing the thermal high-pressure separators that are essential to its core equipment.