The main concrete structure of the flare emission system for Inner Mongolia Rongxin’s 400,000 tons per year polypropylene plant has been successfully completed
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On October 16, with the final batch of concrete poured successfully, the main structure of the flare emission framework for Inner Mongolia Rongxin’s 400,000 tons per year polypropylene plant, operated by the Fourth Branch, was completed, thus fulfilling the set milestones and objectives. This laid a solid foundation for the successful continuation of subsequent work. Entering October, the temperature at the Rongxin project site in Inner Mongolia dropped sharply and harsh winds blew, posing adverse effects on the project’s construction. To ensure the successful completion of the project’s structures and achievement of the set goals, the project team developed countermeasures in advance: precise addition of early-strength composite admixtures to the concrete, along with preheating of raw materials such as water, sand, and gravel, in order to make full use of the heat released during cement hydration to maintain the desired temperature ； Once the concrete has been poured, cover it immediately with cotton felt to prevent moisture from penetrating, ensuring that the concrete reaches its critical strength before the temperature drops to 0°C. The project’s technical personnel prepare specialized construction plans and conduct safety and technical briefings for the construction workers ； During the construction process, the sequence of tasks was arranged reasonably, maintenance work was carried out in a timely manner, and temperature was monitored through continuous measurements; strict control was maintained throughout the process, thereby ensuring construction quality while meeting the scheduled deadlines. Meanwhile, the project team breaks down the construction process into key milestones, establishes a control mechanism that assigns responsibilities to specific individuals, and holds daily coordination meetings to review progress and address any obstacles that arise. The material supply team communicates in advance to stock up on insulation and maintenance materials, thereby preventing rework due to shortages that could arise during fast-paced construction. Safety management personnel have increased the frequency of on-site inspections, focusing on identifying potential safety hazards such as anti-slip measures for scaffolding and the braking performance of lifting equipment, in order to ensure both progress and safety. At present, the project has entered the phase of construction inside the structures, as well as the handover stages for civil works and installation; the large-scale equipment is now ready for lifting. The project manager stated that in the future, strict adherence to winter construction guidelines will continue, and project construction supervision will be carried out while ensuring safety and quality, in order to contribute to achieving the project’s set objectives.
Inner Mongolia Rongxin Chemical Co., Ltd. is located south of Weiwu Road and west of Jingqi Road in the Dalate Economic Development Zone of Ordos, Inner Mongolia. It has completed the Phase 1 coal-to-methanol project as well as the Phase 2 coal-to-ethylene glycol project; the main product of the Phase 1 project is methanol, while the main products of the Phase 2 project are methanol and ethylene glycol. The project with an annual production capacity of 800,000 tons of olefins uses methanol as raw material and employs MTO technology to produce polymeric-grade ethylene and propylene, which are then polymerized to yield high-density polyethylene, polypropylene products, and other by-products. It consists of a methanol-to-olefins unit, a polyethylene plant, a polypropylene plant, along with supporting utility systems and auxiliary facilities, and is integrated organically with the various systems of Rongxin Chemical’s Phase I and Phase II projects that have already been built. Results of the tender for the EPC contract of the methanol-to-olefins unit in Inner Mongolia Rongxin Chemical Co., Ltd.’s project with an annual production capacity of 800,000 tons of olefins: The winning bidder is Sinopec Guangzhou Engineering Co., Ltd. Scope of the EPC contract: This methanol-to-olefins unit covers everything from the supply of methanol and hydrogen into the process area, up to the production of high-quality polymeric grade ethylene, polymeric grade propylene, polymeric grade 1-butene, as well as other by-products. It includes units such as MTO, olefin separation (including compression systems), olefin cracking (if applicable), 1-butene production, steam cracking, along with all necessary auxiliary production facilities. The EPC turnkey project that is responsible for all professional systems within the plant area, including process engineering, general layout (including roads, floors, etc.), equipment, pipelines, construction (foundation treatment/structure/civil works/decoration), instrumentation and automation, electrical systems, telecommunications, HVAC, water supply and drainage, HSE, fire protection, analysis and testing, as well as 6S management for the physical infrastructure; it also covers all tasks required to complete the plant’s construction, commissioning, operation, performance evaluation, and handover. Inner Mongolia Rongxin Chemical Co., Ltd. is affiliated with Yanzhou Coal Industry Ordos Energy Chemical Co., Ltd. of Shandong Energy Group. There is currently the \"Phase 1 project of 1.8 million tons of coal-to-methanol production and 600,000 tons of methanol production\" (referred to as the \"Phase 1 project\"]), as well as the \"Inner Mongolia Rongxin Chemical Co., Ltd.’s circular economy demonstration project for 400,000 tons of coal-to-ethylene glycol production and 300,000 tons of polyoxymethylenemethane production per year\" (referred to as the \"Phase 2 project\")). The first phase of the project was carried out in 2009 by Yankuang Group Company in order to implement the \"Energy Strategic Cooperation Framework Agreement\" and the \"Comprehensive Development Framework Agreement for Coal, Electricity, and Chemicals\" between Shandong and Inner Mongolia provinces. According to the opinions of the Ordos Municipal Government, it is a project acquired from Hong Kong Jiantao Chemical Company. The first-phase project is located in the Sanyangliang Industrial Park in Dalaat Banner, Ordos City, Inner Mongolia, covering an area of about 1,300 mu. The approved total investment for this project amounts to 5.111 billion yuan. The entire project includes units for air separation, gasification, shift reaction, low-temperature methanol washing, sulfur recovery, methanol synthesis, methanol distillation, and utility systems. The project received environmental impact assessment approval in 2012 (Document No. Nei Huan Shen 123); construction began in the same year. Qualified methanol was produced in July 2014, and the project passed the environmental completion inspection in 2015 (Document No. E Huan Jian Zi 105). Preparation for the second phase of the project started in 2016, and it is located within the premises of Inner Mongolia Rongxin Chemical Co., Ltd. in the Sanhangliang area of the Dalaat Industrial Park, Dalaat Economic Development Zone, Ordos, Inner Mongolia. The investment for this phase amounts to 7.681 billion yuan. Using coal as a raw material, this project employs water-coal slurry gasification to produce CO and H2 required for the manufacture of ethylene glycol, as well as purified syngas needed for methanol synthesis; ethylene glycol is then synthesized indirectly through this syngas. The entire project includes units for air separation, gasification, shift reaction, low-temperature methanol washing, sulfur recovery, methanol synthesis and distillation, ethylene glycol production, as well as utility systems. The project received approval for its environmental impact assessment in November 2017 (Document No. E-HUI-PING-154), and construction officially began in the same month. High-quality methanol was produced on October 25, 2019, while qualified ethylene glycol products were manufactured on December 28, 2019. It passed the self-inspection for environmental protection upon completion in December 2020. The main products of Inner Mongolia Rongxin Chemical Co., Ltd. are methanol and ethylene glycol. Although the company has significant competitive advantages in terms of coal resources, plant scale, production technology, and production management, its limited product range exposes it to considerable market risks. Inner Mongolia Rongxin Chemical Co., Ltd. plans to expand its industrial chain through the construction of an olefin project, increase the added value of its products, and develop an industry with core competitiveness. In February 2023, the hydrocarbon project received the approval stipulated in the \"Approval from the Ordos Municipal Ecology and Environment Bureau regarding the Environmental Impact Report for Inner Mongolia Rongxin Chemical Co., Ltd.’s project to produce 800,000 tons of hydrocarbons per year from methanol\" (Document No. E-Huan-Shen- Zi 52). In April 2023, Inner Mongolia Rongxin Chemical Co., Ltd. commissioned China Global Engineering Corporation to prepare an environmental impact report on the changes to the site of this project. After the change in the factory location, the construction site for this project remains in the Sanliangliang area of the Dalaat Industrial Park, within the Dalaat Economic Development Zone in Ordos, Inner Mongolia, to the east of Rongxin Chemical’s existing facilities. After the project is implemented, the main units will include methanol-to-olefins plants, polyethylene plants, polypropylene plants, 1-butene plants, and steam cracking units, along with supporting storage and transportation systems, utility facilities, and auxiliary production equipment. The production process and scale of the main unit remain unchanged, while some adjustments have been made to the supporting storage and transportation facilities, utility systems, and auxiliary production equipment.
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