【Haichuan Expands Horizons】 “Shenning Furnace” – A large-scale dry coal powder gasification furnace with independent intellectual property rights
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“The “Shenning Furnace” is a gasification unit with independent intellectual property rights, developed by the “Shenqi” Innovation Studio of Shenhua Ning Coal Chemical Branch by incorporating advanced foreign technologies. This device is the core component in coal-to-oil projects, and in the past, the key technologies were held by a few large foreign companies. “The \"Shenqi\" Innovation Studio, in collaboration with China Five Rings Engineering Co., Ltd. and other partners, has independently developed a pressurized gasification furnace that consumes 2,200 tons of dry coal per day. The technical specifications of this furnace are at the international leading level; it not only breaks foreign technological monopolies but is also in high demand since its introduction, with the patent transfer fee for each unit reaching as much as 15.6 million yuan. On December 13, 2017, the 19th China Patent Awards ceremony was held in Beijing. Shenning Group’s patent for “a swirl-type dry coal powder gasification furnace” won the gold award. The China Patent Gold Award is the only **departmental award in our country that recognizes inventions and creations for which patent rights have been granted; it is the highest honor in the field of patents issued by our country. The patent for the \"Cyclone-type Dry Coal Powder Gasification Furnace\" that has won this gold award is the \"Shenning Furnace\", a large-scale dry coal powder pressurized gasification technology with independent intellectual property rights, capable of handling 2,500–3,000 tons of coal per day. Compared with similar technologies at home and abroad, it boasts advantages such as a high coal feeding capacity, excellent technical performance, wide compatibility with different types of coal, and a high degree of automation, placing it at the leading level both domestically and internationally. This technology has been granted 38 patents, and following an evaluation by the U.S. Patent and Trademark Office, it was included by the **Energy Administration in the ‘Recommended List of Advanced Technologies and Equipment for the Safe, Green Development and Clean, Efficient Utilization of Coal’. Currently, 28 units of the \"Shenning Furnace\" are in operation as part of the globally prominent Shenning 4 million tons per year coal-to-oil project. The first gasification furnace was successfully tested on October 19, 2016, and full-scale operation was achieved by December 17, 2017. The ash content of the raw coal used in the gasifier is kept between 16% and 25%. At full load, the effective gas production exceeds the design value of 138,000 Nm3/h, reaching over 140,000 Nm3/h. The slag-to-ash ratio on a dry basis is 6:4 (with residual carbon in the slag)
2019-07-25 13:32 Coalification Customer: On the morning of July 24, the signing ceremony for the license agreement regarding the dry coal powder gasification technology used in Anhui Carbonxin Technology Co., Ltd.’s coke oven gas comprehensive utilization project was held at the New Coal Chemical Synthesis Materials Base in Huaibei City, Anhui Province. Zheng Renyong, chairman of Linhuan Coking Co., Ltd., Li Wei, general manager of the same company, and Kuang Jianping, general manager of Ningxia Shenyao Technology Co., Ltd., along with the key leaders of their respective enterprises, attended the signing ceremony.
In the 500,000 tons per year coal-to-olefins project, there is a DME reactor that operates according to the process specifications provided by German technical experts; however, Yao Min’s team is unable to maintain proper temperature control each time material is fed into the reactor. Furthermore, as Germany’s GSP dry coal powder pressurized gasification technology was used industrially on a global scale for the first time, the trial operations were plagued by low ignition success rates, uneven slag deposition, and significant ash content in the syngas; the gasifier had to be shut down for cleaning after operating for about a week. As a result, Yao Min’s team discussed the issue and developed improvement plans. But the patent holder firmly refused to let them modify the technology. In order to overcome the technical barriers, in 2012, Yao Min led his team in repeated discussions and in-depth research, thereby launching the development of a new type of gasifier. In just one year, Yao Min’s team not only resolved the problems associated with DME reactors on their own, but also developed a complete gasification technology system (the Shenning furnace) with a diameter of 4 meters, a height of 21.6 meters, a total weight of 289.25 tons, and the capability to process 2,200 tons of dry coal powder per day. This core technology, for which independent intellectual property rights were obtained, earned 15 invention patents as well as the China Patent Gold Award, thereby breaking foreign technological monopolies. On September 23, 2016, in Texas, United States, Yao Min represented Shenhua Ningmei to sign a licensing agreement for the \"Shenning furnace\" gasification technology with American Peak Group, marking a significant step forward for Shenhua Ningmei in shifting from technology import to technology export. During the operation of the facility, they carried out extensive optimizations to German technology, developed the MTP catalyst, and successfully secured 15% of the global licensing rights for this technology, achieving a transformation from technology import to technology export. It is reported that once the \"Shenning Furnace\" was fully deployed in the Shenning coal-to-oil project, the process package and patent licensing agreements for Siemens’ 24 GSP gasifiers were terminated, saving approximately 200 million yuan in costs alone. Today, the \"Shenning Furnace\" has become the new type of gasification furnace system with the greatest potential for development and improvement, following GE in the United States, Siemens in Germany, Lurgi pressure swing gasification, and Shell gasification furnaces.
"\"The local environment shapes its people,\" and it is likely that the \"Shenning furnace\" is suitable only for the coal produced by the Ningxia Coal Group; otherwise, why wouldn’t other projects choose this furnace? Even with so many coal chemical projects in the Ningdong Heavy Chemical Industry Base, no location was chosen nearby.
It makes sense; for coal-type gasifiers, they are superior to other types of gasifiers, but this is limited by the type of coal
In May 2018, Gasifier No. 27 underwent high-load operation tests at 100%-115%. It shows that the Shenning furnace can handle 2,500 t/d of pulverized coal per unit, and 3,012 t/d of raw coal per unit. It represents the top-mounted single-nozzle dry coal powder pressurized gasification technology that is currently the first of its kind, both domestically and internationally, to achieve a raw coal processing capacity of 3,000 t/d
Key Shenhua’s large-scale coal chemical projects in Yulin, Ordos, Baotou, Xinjiang and other locations have not chosen the Shenning furnace. Several large-scale coal chemical projects at the Ningdong facility, such as Sinopec Ningnenghua and Baofeng, have not chosen the \"Shenning furnace\" either; they use coal from the Ningdong area instead. Several coal indirect liquefaction projects, including Lu’an, Yitai, and Shaanxi Future, also did not choose the \"Shenning furnace\". So.......
Dry powder vaporization furnaces have strong adaptability to different types of coal. The fact that they aren’t used in some projects doesn’t mean they are inferior. There are many factors to consider when choosing a vaporization furnace, and technology is just one of them – merely one aspect
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