Evaluation of Inner Mongolia HuiNeng Chemical Co., Ltd.’s 8 million tons per year project for the clean, efficient, and comprehensive utilization of coal based on different quality levels

Thread Content

Recently, the evaluation was conducted for Inner Mongolia HuiNeng Chemical Co., Ltd.’s project aimed at the clean, efficient, and comprehensive utilization of coal on a scale of 8 million tons per year. On August 19, the draft environmental impact assessment for Inner Mongolia HuiNeng Chemical Co., Ltd.’s project for the clean, efficient, and comprehensive utilization of coal at a rate of 8 million tons per year was made public for comments. Project nature: New construction. Project location: Nalinhe Industrial Park, Sulihe Economic Development Zone, Wudinghe Town, Wushen Banner, Ordos City, Inner Mongolia Autonomous Region. Product plan: Main products include clean coal, coal tar, and LNG; by-products include crude phenol, ammonium sulfate, sulfur, mixed propane, etc. Technical approach: High-efficiency, tiered cleaning and utilization technologies for coal are employed, with coal being converted into high-value-added products through pyrolysis processes. The main technologies include: multi-tube rotary technology for the differential classification and staged utilization of low-rank coal, efficient recovery and comprehensive utilization technology of pyrolysis gases, and technology for phenol and ammonia recovery as well as wastewater treatment. Process flow: 1. Raw material pretreatment stage: Raw coal is screened and crushed to prepare materials of appropriate particle size for the pyrolysis process. 2. Pyrolysis reaction stage: Coal is heated and decomposed under conditions of air exclusion or limited oxygen supply, resulting in pyrolysis gas and semi-coke. 3. Gas purification and separation: After cooling and purification, the pyrolysis gas is processed to yield products such as LNG and coal tar. 4. By-product recovery: By-products such as crude phenol, ammonium sulfate, and sulfur are extracted using phenol-ammonia recovery units. 5. Product refinement: Major products such as LNG and coal tar are further refined to meet commercial quality standards. Construction contents: an 8 million tons per year coal pyrolysis unit, a phenol-amine recovery unit, and a comprehensive utilization unit for pyrolysis gases; in addition, utility and auxiliary facilities such as air and nitrogen supply stations, solid storage and transportation facilities, tank farms, loading/unloading stations, water supply and drainage systems, power supply systems, warehouses, and sewage treatment systems will be constructed.