【Ten Years of Rapid Development in Chemical Equipment】From 1678 to 2014: China’s first domestic facility for producing synthetic natural gas from coke oven gas was successfully put into operation

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Happy May Day 2024! Safety first. Let’s give praise and support to the achievements in China’s chemical engineering technology and equipment. **********************[A Decade of Progress in Chemical Engineering Equipment] Ongoing updates and summaries available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Industry Forum) ***************** China’s first domestic facility for converting coke oven gas into synthetic natural gas has been put into operation. The industrial plant capable of producing 240 million Nm3/year of synthetic natural gas through the methanation of coke oven gas, with technology and catalysts provided by the Southwest Chemical Research and Design Institute of China, was successfully commissioned and connected to the gas network in July 2014 at Shanxi Guoxin Chint New Energy Co., Ltd. The quality of the gas produced meets the standards specified in GB17820-2012 for Class II natural gas. As China’s first industrial facility for producing SNG from coke oven gas, this project enables annual carbon dioxide emissions reductions of 200,000 tons and an annual production of 100 million cubic meters of synthetic natural gas. It opens up a new pathway in China for converting waste gases from heavily polluting industries into clean energy, thereby promoting technological advancement and cleaner production in the coking industry. 　　According to Tang Yaozu, chairman of Shanxi Guoxin Chint New Energy Company, this project is an important part of the \"Gasification of Shanxi\" strategy. With a total investment of 300 million yuan, it utilizes patented technologies at the leading level in China, developed by the Southwest Research Institute of Sinopec, for the purification of coke oven gas and its methanation. After benzene, naphthalene, and sulfides are removed from the coke oven gas through purification processes, it is compressed and heat-exchanged; under the action of catalysts, a methanation reaction takes place, converting CO, CO2, and H2 into methane. Gas separation techniques are then used to isolate hydrogen from the resulting mixed gas, producing synthetic natural gas with a methane concentration of over 88%, thereby achieving zero waste emissions. The device was successfully commissioned on July 10, 2014, with a single feed operation; to date it has been operating stably for 5 days, and the product quality meets the **standard requirements for gas used by urban residents. This project can reduce the emission of coke oven gas by 240 million cubic meters per year, as well as cut carbon dioxide emissions by 200,000 tons, sulfur dioxide emissions by 120 tons, and total dust emissions by 10 tons. It produces 100 million cubic meters of synthetic natural gas annually, which can replace 1.45 million tons of coal. The project generates annual sales revenue of 250 million yuan and a profit of 60 million yuan. 　　It is understood that the Southwest Research Institute took on a **major project for the commercialization of research results; it developed the technology and catalysts necessary for converting coke oven gas into natural gas. It completed laboratory studies, pilot tests, and the development of process software packages, filed 10 invention patents, and obtained 6 of them. Its project on \"Pilot production of synthetic natural gas via methanation of coke oven gas and catalyst development\" passed the evaluation organized by the Sichuan Provincial Department of Science and Technology in May 2010, with all indicators exceeding those of domestic and international counterparts, demonstrating significant energy-saving and emission-reduction effects. 　　Our country is a major producer of coke chemicals. By using the \"methanation of coke oven gas to produce natural gas\" technology to recover the 20 billion cubic meters of coke oven gas that are released each year in our country, it is possible to produce around 8.5 billion cubic meters of natural gas. This not only contributes to energy conservation and emission reduction but also holds great significance for the strategy of energy substitution. Currently, the Southwest Research Institute is collaborating with various entities such as Shanxi Xiangkuang Hengtong on coke oven gas methanization projects; it has provided technology transfer to over 20 enterprises and prepared feasibility study reports for more than 30 enterprises. 　　Experts say that the construction of this project can not only enable clean production in the coking industry but also increase the added value of coke oven gas and coal tar products. It holds great strategic significance for transforming the traditional coking industry, and it will also serve as a model for the comprehensive development and utilization of coke oven gas across the country.