How is the application of CCSI integrated technology?

Apart from enabling the group to use the technology of its Shengbang Company to build and operate the Yanchang kerosene co-refining integrated project, the CCSI technology developed by the Coal Science Research Institute has not yet been applied in any industrial demonstration facilities. There are some eager investors in places such as Xinjiang, Gansu, and Shaanxi who are willing to take the risk.

On August 22, the oxygen gasification technology of the coal powder pyrolysis-gasification integrated technology (CCSI), independently developed by the Hydrocarbon Efficient Utilization Technology Research Center of Shaanxi Yanchang Petroleum (Group) Co., Ltd., passed the scientific and technological achievement appraisal held by the Shaanxi Chemical Industry Society. The panel of appraisal experts consists of seven well-known experts in the energy and chemical industry, including Men Cungui, the former chief engineer of CNPC Planning and Design Institute. Li Dapeng, the company’s top coal chemical industry expert, relevant leaders from the Hydrocarbon Research Center, as well as technical R&D personnel attended this appraisal meeting for scientific and technological achievements. The meeting was chaired by Qu Chengtun, the deputy secretary-general of the Shaanxi Chemical Industry Society. The expert group inspected the on-site testing equipment, reviewed the work reports, research reports, calibration reports, and novelty search reports submitted by the responsible party, as well as the technical documents. Following inquiries and discussions, it was concluded that, based on the internationally leading CCSI technology, an industrial test for oxygen gasification with a capacity of 10,000 tons per year has been completed, opening up new avenues for the application of CCSI technology in the chemical industry ； Taking into account the characteristics of oxygen vaporization, the process conditions and control of CCSI technology were optimized to achieve continuous and stable operation ； Through experiments, the basic design parameters for the CCSI oxygen gasification process package were established, providing a technical foundation for the construction of an industrial demonstration plant ； This achievement is originally innovative and ranks at the international leading level; it is recommended to accelerate its industrial application. Through low-pressure fluidized bed pilot tests, high-pressure fluidized bed pilot tests, fixed-bed pyrolysis experiments, and cold-state simulations of reactor systems, the CCSI technology has undergone a large number of fundamental testing exercises, thereby laying a solid foundation for the development of this technology. Since its commissioning by CCCC in August 2015, the 10,000-ton industrial test facility has carried out 15 feeding tests in total. In April 2017, it passed the evaluation of scientific and technological achievements organized by the China Petroleum and Chemical Industry Federation; the evaluation committee unanimously agreed that \"this technological achievement is original and possesses independent intellectual property rights, and its overall level is at the international forefront. It is recommended to accelerate its industrial demonstration and commercialization.\" The vaporization of oxygen was verified on-site in July 2019 by the Shaanxi Chemical Industry Society. Based on the tests conducted in the pilot plant, the process design package for the 3600 t/d CCSI industrial-scale plant was prepared. The CCSI technology integrates coal pyrolysis and pulverized coke gasification within a single reactor, enabling the staged conversion of coal into coal tar and crude syngas. This approach not only yields high rates of coal tar production but also ensures efficient conversion of pulverized coke. The main reactor features a unique design, incorporating special flow field, temperature field, and channel configurations to create an optimal temperature gradient and material circulation. This enables the reaction system to reach self-heating equilibrium, thereby significantly improving the overall energy conversion efficiency. The industrial application of CCSI technology will undoubtedly provide technical support for the deep and clean conversion of coal resources by China National Petroleum Corporation, thereby facilitating its strategic transformation. It will also promote the efficient and clean use of coal as well as the integration of various industries, driving technological advancements in the coal chemical industry and enabling simultaneous progress in economic benefits and environmental protection. This holds great strategic significance for ensuring energy security.

Major breakthrough in integrated coal tar extraction and syngas production technology (CCSI) – Coal Chemicals 114 Forum, 2016-10-08. Recently, the integrated coal tar extraction and syngas production technology (CCSI), developed independently by the Hydrocarbon Efficient Utilization Technology Research Center of Shaanxi Yanchang Petroleum (Group) Co., Ltd., has achieved a significant breakthrough. The industrial test plant with a capacity of 10,000 tons was able to operate continuously for 144 hours without any issues; the yield of coal tar was 16.23%, and the effective gas content in the syngas was over 35% (for air-based gasification). All performance indicators met or exceeded the design specifications.

At present, the main ways of coal utilization in our country are direct combustion and single conversion, which make use only of its calorific value and some of its components. This not only leads to the waste of useful components and economic losses but also results in some of the resources being converted into pollutants that harm the environment. Technological innovations in the differentiated utilization of coal and coal-based cogeneration are important ways to achieve efficient and clean conversion of coal as well as its use as a fuel raw material. CCSI technology enables the pyrolysis and gasification of coal to take place in a single reactor, directly converting coal into coal tar and crude syngas. This approach maximizes the utilization rate, conversion efficiency, and added value of coal resources, raising the level of coal utilization technologies to a higher standard. In the future, driven by CCSI technology, coal will be efficiently and cleanly converted into oil (coal tar) and gas (syngas). By integrating this with the production of liquid fuels, chemicals, and electricity generation, a new pathway for integrated production of oil, coal, and electricity will be created, ushering in an entirely new model for energy development. This will have a significant and profound impact on the development of the coal chemical industry and the pattern of energy utilization in times of low oil prices, thereby driving changes in the models of the coal industry and the energy chemical sector. The main technological innovations and industrial advantages are reflected in 5 aspects:

The technical approach is innovative. By changing the traditional methods of differentiated utilization of coal, such as coal pyrolysis technology and integrated coal pyrolysis-combustion technology, and by organically combining pyrolysis technology with pulverized coke gasification technology, coal can be directly converted into gaseous and liquid products within a single reactor. This approach not only yields a high yield of coal tar but also enables efficient conversion of pulverized coke, allowing for complete utilization of the coal – thus resulting in higher conversion efficiency and greater added value of the products. Energy conversion is efficient. The reactor’s unique fluidization field, temperature field, and channel configuration design, along with the high-frequency circulation of high-temperature solid particles, result in a favorable temperature gradient ； The coupling of gasification and pyrolysis reactions forms a closed cyclic system, in which materials and thermal energy are exchanged between the two processes; as a result, the reaction system reaches self-thermal equilibrium, leading to a significant improvement in the overall efficiency of energy conversion. The environmental benefits are significant. By integrating CCSI technology with the power generation industry, coal tar is extracted while \"gas\" (syngas) is used to generate electricity in place of coal, thereby creating a new type of integrated coal-electricity co-production system that features clean and efficient conversion of coal, advanced processing of coal tar, and green power generation. Syngas contains no heavy metal pollutants such as mercury and arsenic, and it can be desulfurized, decarburized, and dust-removed before power generation. This approach helps to address the high costs and poor efficiency of existing flue gas treatment systems in coal-fired power plants, by tackling pollutant emissions at the early stages of the industrial chain and thus supporting the \"Blue Sky Initiative\". It offers good economic benefits. The new kerosene-electric combined heat and power production model, with its advantages of high profitability and ultra-low emissions, will undoubtedly greatly facilitate the transformation and upgrading of the existing coal-fired power industry. At present, China uses about 2 billion tons of coal per year for power generation, and around 70% of the power plants employ subcritical boilers. If all of these boilers were upgraded using CCSI technology, it would not only significantly improve power generation efficiency but also yield an additional 200 million tons of coal tar, which could replace more than 50% of China’s crude oil imports. Furthermore, for newly built ultra-low emission power plants that use the CCSI-gas turbine power generation mode, there is no need to install large-scale air separation units, which significantly reduces the investment required for IGCC technology and enables its commercial application in China at an earlier stage. The market is vast. CCSI’s technological innovations have opened up pathways for the integrated development of coal, kerosene, and electricity generation, driving continuous improvement and innovation in coal-based combined production technologies both in depth and breadth. This has facilitated the simultaneous achievement of economic benefits and environmental protection, and it is possible to establish industrial clusters and circular economy development models across various industries.

Xinjiang is suitable, as it possesses such advantages as those of Jiyuan

It is understood that research and development on CCSI technology began in October 2012, going through stages such as pilot-scale experimental studies, cold-state simulation studies, and the design and construction of a 36t/d industrial test facility. The construction of this industrial test facility was completed in August 2015; the entire process was operational by November of the same year, and significant progress has been made recently. At present, the preparation of the process package for an industrial-scale CCSI plant with a capacity of 1 million tons per year (3,600 tons per day) developed based on this technology is underway simultaneously, and industrial demonstration and technology dissemination are expected to take place during the 13th Five-Year Plan period.

The 10,000-ton-scale coal pyrolysis-gasification integrated technology (CCSI) industrial test unit successfully passed the 72-hour oxygen gasification calibration. Hydrocarbon Research Center, July 15, 2019. The 10,000-ton-scale coal pyrolysis-gasification integrated technology (CCSI) industrial test unit, developed independently by the Hydrocarbon Research Center, made a significant breakthrough during the 15th engineering test. Since the ignition and heating began on July 9, this engineering test has been operating with feed under oxygen vaporization conditions for over 72 hours, successfully completing the oxygen vaporization calibration organized by the Shaanxi Chemical Industry Society. During the calibration period, the expert group conducted on-site inspections of the operations at various units such as coal preparation, pyrolysis-gasification, gas purification and oil recovery, residual oil recovery, and wastewater treatment, as well as auxiliary production systems including thermal power generation, safety, and environmental protection ； Checked the original data records ； Inspections were carried out on the control room, analysis room, and on-site sampling areas to ensure that the calibration data obtained is accurate and reliable. The calibration results show that the device operates stably, with all parameters meeting or exceeding the design specifications. The expert group agreed that this technology features high tar yield, high carbon conversion rate, and high content of effective components in the syngas; it enables direct coupling of gasification and pyrolysis, mutual supply of materials, complementary energy utilization, and self-balancing of heat within the reactor. It features a high level of automated control, enabling precise regulation of different temperature and fluidization fields as well as stable operation with high-rate cyclic material recycling; it is recommended to accelerate the industrial development and widespread application of this technology. The successful 72-hour on-site calibration of this oxygen vaporization test will surely accelerate the development of industrial demonstration units and their commercialization, thereby promoting further optimization and innovation in coal-based cogeneration technologies. It is reported that the CCSI technology was independently developed by the Hydrocarbon Research Center. It creatively integrates coal pyrolysis with semi-coke powder gasification within a single reactor, enabling the conversion of coal into two products – coal tar and syngas – in one step. The yield of coal tar is over 15 wt%, thereby maximizing the utilization rate of coal resources, the conversion efficiency, and the added value ； **The \"13th Five-Year Plan for Demonstrating Advanced Coal Processing Industries\" issued by the Energy Bureau designates the integrated coal tar extraction and syngas production (CCSI) industry project as a new demonstration project for the optimized utilization of low-grade coal. Since its completion in 2015, this industrial test facility has undergone a total of fifteen engineering trials, and the air gasification technology was approved by experts from the Sinopec Federation in April 2017. The process package design documents for the air and oxygen version of the “1 million tons/year CCSI plant” have passed expert review. The industrial demonstration and commercialization plan for CCSI was approved by expert review in August 2018.

Places such as Gansu, Heilongjiang, and Ningxia possess such Jiyuan-endowed characteristics.