The 6.0Mpa pressurized gasification laboratory of Xinjiang Qinghua Group has achieved phased results
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This post was last edited by Desert Fish on 2016-11-15 at 10:11. The 6.0Mpa pressurized gasification laboratory of Xinjiang Group has achieved partial results. Author/Source: Date: 2016-11-14. Clicks: 36. After a year of repeated experiments, the 6.0Mpa pressurized gasification laboratory of Xinjiang Qinghua Energy Group Company has recently reached partial results. The laboratory was jointly established by Xinjiang Qinghua Energy Group Co., Ltd., Saiding Engineering Co., Ltd., and Taiyuan University of Technology to jointly develop a new 6.0 Mpa fixed-bed coal gasification technology under pressure. Under a pressure of 6.0 Mpa, this technology utilizes carbon dioxide to partially replace water vapor and oxygen as part of the multi-component gasification agent. It investigates the role of this approach in regulating the gasification temperature, adjusting the hydrogen/carbon monoxide ratio, as well as in increasing methane content and suppressing the formation of phenols. This provides a theoretical basis for the development of a new type of pressurized coal gasification technology that reduces water consumption, enables the reuse of carbon dioxide, and results in lower levels of phenol-containing wastewater. This research is also listed as a sub-project of the **High-Tech Research 863 Program’s ‘Large-Scale Coal Pulverization Pressurized Gasification Technology and Demonstration’ project. Since the trials began in November 2015, after a year of testing, the laboratory process optimization was completed, and the necessary experimental conditions were established ； The ignition method for the gasification furnace has been determined, as well as various parameters for starting up the gasification furnace and conducting tests ； Various operating procedures as well as experimental and analytical protocols have been established ； The experimental equipment was successfully pressurized to 6.0 Mpa, and the components of the raw gas from Xinjiang Qinghua Coal were obtained at pressures of 3.0–6.0 Mpa. The successful commissioning of the laboratory marks the completion of construction of China’s first pressurized coal gasification test facility using 6.0 MPa (multi-component gasifying agents). The laboratory will further explore and optimize the operating conditions by conducting test firings of different coal types, such as Xinjiang Yili coal, Xinjiang Zhundong coal, and Henan Yima coal, under various pressures (3.0 MPa, 4.0 MPa, 5.0 MPa, 6.0 MPa) and different CO2 feed rates back into the furnace (10%, 20%, 30%, 40%, 50%). This will enable the development of an evaluation model for the pressurized gasification process of coal particles, providing technical support for the design of industrial-scale facilities.
Is the crushed coal pressurized gasification technology more energy-efficient than the current powder gasification technology?
Speaking specifically of gasifiers, the moving-bed gasifier certainly makes more efficient use of heat.
Qinghua Ensures High-Load Operation of Coal-to-Gas Production Author/Source: Date: 2016-11-28 Clicks: 43 Recently, heavy snowfall in the Ili region, a sharp drop in temperatures, and icy roads have severely affected the normal supply of raw coal used for coal-to-gas production. The inventory of raw coal in the coal storage facilities has dropped significantly, with the amount of coal available for production now as low as 8,000 tons. In the face of this emergency, to ensure stable high-load production of coal-based gas, the Energy Group Company immediately activated its \"Emergency Plan for Ice Disasters.\" Zhao Mingcheng, the company’s assistant manager and deputy chief engineer, took the initiative to communicate and coordinate with the Energy Development Company. The Production Department, the Coal Preparation Workshop, and the Fleet responded promptly by carrying out ice and snow removal as well as anti-slip treatments on the roads ； Make every effort to rescue vehicles that have slipped off the road and clear the roads ； Adjust the coal transportation routes in a timely manner based on road conditions, open emergency passages, and ensure the safe passage of coal transport vehicles. Through intense efforts, the raw coal inventory has increased from 8,000 tons to 14,000 tons as of now, while the oxygen consumption for gasification has risen from 56,800 cubic meters per hour to 60,000 cubic meters per hour. This operation ensured the stable operation of coal-to-gas production at high load, laying the foundation for completing the annual production targets.