Chengda Engineering has won the EPC contract for the second production line of EPDM with an annual capacity of 25,000 tons, as part of the next phase of Yan’an Energy and Chemical’s ‘Three Carbonyls, Three Materials’ project aimed at achieving excellence in specialized manufacturing

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Shaanxi Yanchang Petroleum Yan’an Energy Chemical Co., Ltd.: EPC general contracting for the second production line of EPDM rubber with an annual capacity of 25,000 tons, as part of the next phase of its “Three Carbonyls, Three Materials” specialized and high-quality development project. Client: Shaanxi Yanchang Petroleum Yan’an Energy Chemical Co., Ltd. Location of construction: Yan’an City, Shaanxi Province. Scale of construction: The first production line for EPDM rubber, with an annual capacity of 25,000 tons, was completed and put into operation in 2019. This project aims to establish a second production line; the units for storing raw materials and products, as well as those for catalyst preparation, along with the substation and cabinet rooms, will be shared with the first production line. Other units, including those for polymerization reactions, catalyst removal through washing, solvent removal via condensation and stripping, post-treatment processes, and the recovery and purification of solvents and dienes, need to be built anew. The land required for this project was already reserved during the construction of the first production line. Scope of the tender and division of bid sections: Construction of a new 25,000 tons per year second-line production facility for EPDM rubber along with associated auxiliary facilities, including a polymerization unit, a degassing unit for the polymerized slurry, a washing unit for the polymerized slurry, a stripping unit for the polymerized slurry, and a post-treatment unit; construction of systems for the recovery and purification of solvents and dienes in the new second-line facility, installation of RTO waste gas treatment equipment, as well as renovation of the substation and cabinet rooms among other supporting facilities; integration of the technical improvement projects related to the first-line facility into the construction of the second-line facility; the use of utilities such as water, electricity, and steam required for the project will rely on the existing facilities of the facility itself; the project involves various specialties including civil engineering, equipment, process engineering, electrical engineering, and instrumentation. First place: China Chengda Engineering Co., Ltd. – Bid price: 224,750,098.00 yuan. Second place: Hualu Engineering Technology Co., Ltd. – Bid price: 233,032,019.10 yuan. Third place: Saiding Engineering Co., Ltd. – Bid price: 229,487,787.32 yuan