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The air separation unit of Xinjiang Xuan Dong Energy’s 100,000 Nm3/h coal gasification hydrogen production project has successfully completed the lifting of the lower tower of the cold box main tower. Author/Source: Gasification World. Date: 2022-10-15. Clicks: 11. Recently, the air separation unit in question was completed successfully, with the lifting of the lower tower of the cold box main tower being accomplished by the first branch company of Shaanxi Huajian Engineering Co., Ltd.; this has created the conditions necessary for the subsequent installation of the condensation evaporator and the upper tower sections. Reportedly, the lower section of the main tower of the cryogenic box being lifted this time has a diameter of 3.64 meters and a height of 21.59 meters; its individual weight is 38 tons. In June 2022, the Ecology and Environment Department of Xinjiang issued a public approval notice regarding the project by Xinjiang Xuandong Energy Co., Ltd. aimed at the clean and efficient utilization of coal through classification and grading at a capacity of 10 million tons per year, as well as the production of hydrogen via coal gasification at a rate of 100,000 m³/h. Xuandong Energy Co., Ltd. is constructing the project for the clean and efficient utilization of coal on a scale of 10 million tons per year, with differentiated quality treatment, as well as the hydrogen production via gasification at a rate of 100,000 m3/h, in three phases. The total investment in the project is 4,490,000,000 yuan, of which 852,000,000 yuan is allocated to environmental protection efforts; this figure represents 18.98% of the total investment. According to the publicly available environmental impact assessment information, coal-to-hydrogen production utilizes SE water-coal slurry gasification, sulfur-tolerant shift reaction, low-temperature methanol washing, and PSA for hydrogen production. The configuration of various processes in the project is as follows: For gasification, there are 2 gasification furnaces, using a water-cooled wall plus lower cooling system; 2 units are in operation while 1 serves as a backup. Shift conversion: sulfur-tolerant shift conversion, CO+H2 110,000 m³/h. Purification: Rectisolve® process for CO+H2 at 110,000 m³/h. PSA hydrogen production: 100,000 m³/h. Sulfur recovery: Two-stage Claus sulfur process. Project Overview: The 100,000 Nm3/h coal gas hydrogen production project by Xinjiang Xuandong Energy is located in the Comprehensive Energy Industry Zone of the Industrial Park in Yiwu County, Hami. It primarily supplies hydrogen for the coal tar hydrogenation unit of Xinjiang Xuandong Energy’s 10-million-ton/year project aimed at the clean and efficient utilization of coal through classification and quality-based processing. This project includes process units such as air separation, coal preparation, gasification, shift reaction, low-temperature methanol washing, sulfur recovery, and PSA hydrogen production, along with the supporting utility systems. The air separation unit has a capacity of 40,000 Nm3/h (O₂), and it supplies plant air, instrument air, and nitrogen for the entire facility. Xinjiang Xuandong Energy Co., Ltd.’s 10-million-ton/year project for the clean and efficient utilization of coal based on grading and quality classification. Project name: 10-million-ton/year project for the clean and efficient utilization of coal based on grading and quality classification. Planned start and completion dates for the project: July 2020 – October 2023. Location of the project construction: Naomao Lake Comprehensive Industrial Zone, Yiwu County Industrial Park, Hami City. Project construction scale: Clean and efficient utilization of 10 million tons per year of coal, categorized by grade and quality, to be constructed in three phases. Phase 1: 6 million tons per year coal grading and quality-based utilization facility, along with utility systems and auxiliary facilities ； Phase II: 200,000 tons/year LNG production facility using comprehensive utilization of waste gas, along with supporting facilities ； Phase 3: A coal grading and quality-based utilization facility with a capacity of 4 million tons per year, an LNG production facility capable of producing 200,000 tons per year from the comprehensive utilization of waste gas, along with supporting projects and auxiliary facilities. The total investment is 420,000 million yuan, of which 126,000 million yuan comes from own funds, while 294,000 million yuan is financed through bank loans. Xinjiang Xuan Dong Energy Co., Ltd. is a wholly-owned subsidiary of Xinjiang Xuan Li Environmental Protection Energy Co., Ltd., and was established in 2017. Xuandong Energy’s project for the clean and efficient utilization of coal on a scale of 10 million tons per year is being constructed in three phases. The first phase involves building a facility for the graded and differentiated utilization of 6 million tons of coal per year, along with the necessary utility systems and auxiliary facilities ； Phase II construction: a 200,000 tons/year LNG production facility using waste gas in a comprehensive manner, along with supporting facilities ； Phase 3 involves the construction of a coal grading and quality-based utilization facility with an annual capacity of 4 million tons, as well as a facility for the comprehensive utilization of waste gas to produce 200,000 tons of LNG per year, along with related infrastructure and auxiliary facilities; the total investment amounts to 4.2 billion yuan.