【Haichuan Chemical Salary News】Advances in Domestic and International Gasification Technologies
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Modern Coal Chemical Industry, October 22: Coal gasification is the key technology in modern coal chemical industry. Whether it is coal liquefaction aimed at producing oil products, or coal chemical processing focused on manufacturing chemical products such as synthetic ammonia, methanol, and olefins, choosing the appropriate coal gasification technique is crucial for the entire production process. Currently, gasification technology has given rise to various approaches, entering an era of diverse developments and competing ideas. Due to factors such as differences in coal types, products, and plant construction conditions, as well as the complexity of coal gasification technology, it is inevitable that coal gasification processes vary; there is no technology in the world that can gasify any type of coal. Therefore, selecting the appropriate coal gasification technology is directly related to the safe and stable operation as well as the economic efficiency of the entire coal chemical plant. The choice of coal gasification technology is one of the key factors for coal chemical plants and enterprises. On the afternoon of October 17, during the session on gasification and hydrogen production as part of the Coal-Based Energy Products forum at the 2018 China International Coal Chemicals Development Forum, several domestic and international companies specializing in gasification technologies presented the progress of their respective technologies. The forum was chaired by Wang Xiujiang, deputy secretary-general of the Coal Chemicals Committee of the China Petroleum and Chemical Industry Federation. According to Zhu Yuying, deputy general manager of Aerospace Changzheng Chemical Engineering Co., Ltd., the aerospace pressurized coal gasification technology has enabled the serialization, large-scale production, standardization, and specialization of coal gasification techniques. It has promoted the development of high-pressure, intelligent, and diversified approaches, meeting the needs for upgrading traditional coal chemical technologies as well as for the industrialization of modern coal chemical processes. To date, the company has signed contracts for 101 gasifiers under 43 projects. Of these, 54 are used in the nitrogen fertilizer industry, and 47 are used for modern coal chemical products. Currently, 15 projects are under construction, and 28 projects have been put into operation. There are 52 gasification units in operation, including 22 units with a capacity of 1,000 tons and 30 units with a capacity of 2,000 tons. Classified by the type of coal used, there is 1 project that burns only high-calorific, high-sulfur, and high-ash coal, 1 project that burns only lignite, while the remaining projects use bituminous coal or mixed coal. Classified by the nature of the contracts signed by the company, among the 43 projects, there are 7 EPC projects, 1 project involving a multinational company, and 35 EP projects; 23 of these projects involved the design of the entire plant as well as its various systems. The highest recorded annual operating time for a single furnace is 467 days (Haoyuan Phase I project), while the service life of a single burner is 600 days – both of which set world records in the industry.
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Qu Qiang, Director of Gasification Technology at Air Products (China) Investment Co., Ltd., introduced Air Products’ gasification technology and business model. The company has built over 20 large-scale air separation units in China, with its investments focused on the energy and chemical industries, enabling it to hold a leading position in the market. In May 2018, Air Products and Chemicals (China) Investment Co., Ltd. acquired all the gasification technology patent licensing business from Shell Global Solutions International, a subsidiary of Royal Dutch Shell, thereby forming the Slag Oil Gasification Alliance. These initiatives expand Air Products’ syngas supply business, offering turnkey gasification facilities for the gasification of solids (coal and biomass) and liquids (refinery residue oil) on a gas sales basis. Professor Zhang Jiansheng from Tsinghua University presented the progress in gasification technology research and development at Tsinghua University. The water-cooled wall waste boiler gasification technology for water coal slurry (Jinhua Furnace), jointly developed by institutions such as the Shanxi Clean Energy Research Institute at Tsinghua University, is the world’s first gasification plant that uses a water coal slurry water-cooled wall directly connected to a radiant waste boiler. It boasts excellent performance in terms of energy savings, consumption reduction, and environmental protection, enabling integrated applications in the fields of chemicals, power generation, gas production, and heating. Since April 1, 2016, it has been operating smoothly and has won the Grand Prize in the \"2017 China Nitrogen Fertilizer and Methanol Industry Technology Progress Award.\" It was rated as a “national asset” and made it onto the “Top 10 News Stories of 2017”. At present, projects such as Changjin Yuan Coking Co., Ltd. of Shanxi Nanyao Group have decided to use over 23 Jinhua furnaces; the projects of Shanxi Nanyao, Henan Jindadi, Xinjiang Tianye, and Shandong Jincheng are expected to start operations by the end of 2018. Pan Rong, deputy general manager of Shandong Yankuang Guotuo Technology Engineering Co., Ltd., introduced the latest developments in multi-nozzle opposed coal slurry gasification technology. The \"multi-nozzle opposed gasification technology,\" developed through more than 30 years of unremitting efforts over two generations, has completely broken the monopoly of foreign multinational companies on large-scale gasification technologies. It has gained widespread recognition and acceptance from peers both at home and abroad. Since the first demonstration unit was put into operation just 13 years ago, it has been adopted by 57 enterprises across the country and abroad, with 158 gasifiers currently under construction or in operation. This technology has successfully enabled an increase in the daily coal processing capacity per furnace from 1,000 tons to 3,000 tons. The world’s largest coal slurry gasification furnace in terms of processing capacity per furnace was put into operation in June 2014, and it has been able to operate efficiently, stably over long periods of time. Coal-to-hydrogen plants place very high demands on the economic efficiency, safety, reliability, and stability of the gasifier operation; water-coal slurry gasification for hydrogen production is the coal gasification technique that best meets the requirements of coal-to-hydrogen technology. Multi-nozzle opposed water-coal slurry gasification has been successfully applied to 5 large-scale coal-to-hydrogen projects, including Hengli Petrochemical (Dalian) Refining & Chemical Co., Ltd.’s 20 million tons per year integrated refining and chemical project. At present, with the support of **key research and development programs, East China University of Science and Technology and Yankuang Group are working together to develop ultra-large-scale water-coal slurry gasifiers capable of processing 4,000 tons of coal per day per furnace ； Yankuang Group has also collaborated with East China University of Science and Technology to develop a comprehensive set of technologies for efficient water-coal slurry gasification using a quenching-waste boiler combined process, and has invested in the construction of demonstration units. Kuang Jianping, deputy general manager of Ningxia Shenyao Technology Co., Ltd., introduced the gasification technology of the \"Shenning Furnace\" and its industrial applications. Shenhua Ningmei has independently developed a large-scale dry coal powder pressurized gasification technology with a daily coal input of 2,500–3,000 tons; it has obtained 38 patents and passed the evaluation by the United States Patent and Trademark Office. Currently, this technology has attracted widespread attention within the industry; many companies from home and abroad have come to conduct inspections and exchanges. Licenses for 23 units of this technology have been granted to companies such as the U.S.-based Peak Group and Inner Mongolia Yitai Group, making it the first gasification technology in China to be exported abroad. The image above shows Gu Xiulian, Vice Chairman of the 10th National People’s Congress, and other officials visiting the booth of Ningxia Shenyao Technology Co., Ltd. Colin Future Energy Technology (Beijing) Co., Ltd.’s Deputy General Manager, Kang Sun, provided an introduction to CCG Colin’s dry gasification technology. Colin possesses an independent and complete dry powder gasification technology, with 38 distinct series in total, accounting for 83 patents covered by independent intellectual property rights. The patent covers various processes including coal powder preparation, coal powder transportation, gasification and quenching, syngas washing, slag discharge and black water treatment systems, slurry gasification, and dry/slurry co-gasification. This technology has been successfully applied in the 500,000-ton-per-year synthetic ammonia production project in Kaiyang, Guizhou, as well as in the 600,000-ton-per-year ethylene glycol production project (with an initial capacity of 300,000 tons per year) at Inner Mongolia Chemical Industry Co., Ltd. Currently, there are many different styles and types of gasification technologies both domestically and internationally. Different gasification technologies have distinct applications and suitable ranges, and they continue to evolve through innovation. In the future, gasification technology must evolve in the direction of large-scale and high efficiency. At the same time, it is necessary to further strengthen basic applied research, advance the optimization of large-scale gasification systems, improve energy utilization efficiency, and ensure the long-term, safe, stable, and efficient operation of these facilities.
The gas company is really ambitious: the master’s disciples, dry powder gasification technology, GE’s water-coal slurry gasification technology, and substantial financial resources – it’s hard not to expect it to make great progress
Who are these two, Mr. Yu’s disciples?
Qu Qiang, Director of Gasification Technology at AP Company