Overview of the 1.5 million-ton coking upgrade project and comprehensive utilization of coke oven gas at Lulong Mining in Qitaihe

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The 25th National “Safety Production Month” in 2026: Everyone Talks About Safety, Everyone Knows How to Respond to Emergencies – Identifying and Addressing Risks and Hazards -------------------------------------------------- I. Project Overview 1. Basic Information Full name of the project: 1.5 million-ton coking upgrade and comprehensive utilization project for Qitaihe Lulong Mining Company Location: Chemical New Materials Park, Boli Economic Development Zone, Boli County, Qitaihe City, Heilongjiang Province Owner of the project: Hainan Guotou Qitaihe Energy Development Co., Ltd. (a subsidiary of Hainan Guotou Group; the original owner was Qitaihe Lulong Mining Co., Ltd.) Total investment amount: 2.118 billion yuan Nature of the project: A capacity replacement and expansion project aimed at phasing out the existing 4.3-meter-wide, outdated coking ovens and replacing them with larger, more environmentally friendly ones Construction timeline: Construction will begin in 2024, with completion and operation planned for the first half of 2027 2. Key aspects of the construction – Coking facilities: Two new 6.3-meter-wide ZHJL6255D type coke ovens with 65 chambers will be built, enabling an annual production capacity of 1.5 million tons of coke； It is equipped with a complete set of chemical product recovery facilities, including coal preparation, coke screening and storage, cold tar distillation, separation of tar and ammonia water, ammonium sulfate production, and benzene washing. - Energy-saving and environmental protection device: integrated with a dry quenching system + waste heat power generation unit ； Equipped with desulfurization, denitration, and dust removal systems, as well as advanced treatment facilities for phenol-cyanide wastewater and sulfur recovery units. - Comprehensive utilization of coke oven gas: 40,000 Nm³/h of coke oven gas is recovered, with pretreatment, compression and purification, as well as cryogenic liquefaction units installed, resulting in an annual production of approximately 44,000 tons of LNG ； Gas exhaust is supplied to the synthetic ammonia and urea project in the park. - Utility facilities: supporting facilities such as circulating water systems, biochemical wastewater treatment plants, substations, central control buildings, mechanical repair workshops, and tank farms. 3. Main product plans: an annual production capacity of 1.5 million tons of coke, 71,050 tons of coal tar, 22,950 tons of crude benzene, 20,270 tons of ammonium sulfate, and 44,000 tons of LNG; by-products include sulfur and ammonium thiocyanate among other chemical products. II. Project bidding situation 1. Bidding for preliminary procedures (2023): Calls for bids were issued successively for environmental impact assessment, safety assessment, and survey design work ； Complete the feasibility study report, environmental impact assessment public notice, capacity replacement procedures, and project filing. 2. Tendering for projects and equipment in batches (to be carried out from 2024 to 2026) – Civil engineering: tendering for the general contract of site grading, coke oven foundations, dry quenching plant construction, sewage treatment stations, and tank farm civil works ； - Core process equipment: procurement bidding for 6.3-meter coke ovens and related equipment, dry quenching coke boilers and turbines, gas compressors, cryogenic liquefaction units, environmental protection desulfurization and denitrification equipment, and dust removal equipment ； - Installation works: coke oven construction, installation of chemical production units, installation of LNG units, and general contracting for electrical and instrumentation installation ； - Service categories: project supervision, third-party testing, safety facility design, and bidding for operational technology services. 3. Tendering characteristics: The project is tendered in phases on a rolling basis; open tendering is used for large-scale complete sets of equipment ； For civil engineering and installation projects, priority is given to local and domestic large-scale construction companies with experience in the coal chemical industry ； As of May 2026, some supplementary materials and individual project tenders are still being issued. III. Project construction status (as of June 2026) The project as a whole is in the phase of main civil construction and concurrent installation of core equipment: 1. Coke oven area: The pouring of the coke oven foundations has been completed; the bricklaying of the oven bodies is progressing in segments, and the installation of oven doors and pipe supports for some sections has begun ； 2. Dry quenching of coke and power generation system: The civil construction of the plant is nearly complete; the core equipment such as waste heat boilers and turbines has been delivered for installation ； 3. Comprehensive utilization facility for coke oven gas and LNG: The main civil construction is completed; compressors and cryogenic equipment are being delivered and installed successively ； 4. Environmental protection and water treatment facilities: Simultaneous construction of the phenol-cyanide wastewater advanced treatment plant and the surface dust removal station ； 5. Construction challenges: The construction period in winter in the north is limited; therefore, the project adopts winter insulation measures and carries out work in different areas at staggered times to ensure timely completion ； The pipeline network in the plant area, the tank farm, and the utility systems are constructed simultaneously. The installation of the main equipment is scheduled to be completed by the end of 2026, joint commissioning is planned for the first quarter of 2027, with full operation to commence in the first half of that year. IV. Significance of the Project 1. Significance for industrial upgrading: By replacing small, highly polluting coke ovens with larger, 6.3-meter coke ovens that are encouraged to be used, along with dry quenching technologies, this approach promotes the upgrade of the equipment in Qitaihe’s traditional coal coking industry. It helps to address the shortcomings in the green upgrading of the coal chemical industry, and is in line with the policies aimed at optimizing capacity in the coking sector. 2. Circular economy and environmental benefits: Achieving the resource utilization of all components in coke oven gas; recovering waste heat from dry quenching to generate electricity; and conducting advanced treatment and reuse of wastewater, thereby significantly reducing pollutant emissions, water consumption, and carbon emissions ； Convert waste gas into the clean energy source of LNG, and establish a circular industrial chain of \"coal-coke-gas-chemicals\" to reduce resource waste at the source. 3. Regional economic significance: As the core project of the Qitaihe coal chemical industry cluster developed by Hainan State Investment, it will be able to supply metallurgical coke and chemical raw materials in a stable manner once operational, thereby promoting the coordinated development of the downstream ammonia synthesis and urea industries in the park ； Create job opportunities, extend the value chain of coal resources, and assist Qitaihe City in its transformation from a coal-based city. 4. Significance for energy security: The production of LNG helps to supplement the supply of clean energy in the Northeast region; the waste gases from coke ovens are utilized on-site, reducing losses associated with energy transportation. This improves the region’s ability to achieve self-sufficiency in energy and enhances its efficiency in energy utilization, thereby supporting the low-carbon transformation of Heilongjiang Province’s energy industry.