Tender for custom-made containers for the 100,000 tons/year H-EVA (batch process) unit and the 300,000 tons/year EVA (continuous process) unit in Guangxi Petrochemical’s integration and transformation project

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Recently, an important milestone was reached in China National Petroleum Corporation’s Guangxi Petrochemical integration and transformation project. The shortlist for the bid candidates for the custom-made containers for its key 100,000 tons/year H-EVA (reactor-based) plant and 300,000 tons/year EVA (tubular-process) plant has been announced. This marks a solid step forward for this highly anticipated EVA project toward completion and operation. This tender was issued by Daqing Petrochemical Engineering Co., Ltd. as the tendering party, and it was divided into two parts. The final results are as follows: For the non-standard containers of the EVA plant in the Guangxi petrochemical integration project (construction drawings section), the first-ranked bidder is Dalian Dongfang Yipeng Equipment Manufacturing Co., Ltd., with a bid price of 15,586,698.01 yuan. The scope of this tender includes 31 containers, most of which are made of stainless steel, with some being made of carbon steel. Non-standard containers for the EVA unit in Guangxi Petrochemical’s integrated refining and chemical processing facility (engineering drawings section): The first bidder is Qingdao Changlong Heavy Equipment Co., Ltd.; the bid price is 12,693,280.46 yuan. Scope of the bid: It includes 49 containers, made primarily of stainless steel, with some being made of carbon steel. These 80 custom-made containers are the core reaction and processing equipment in the EVA plant. The choice of materials for them – primarily stainless steel – reflects the strict requirements imposed by EVA production on the corrosion resistance and high cleanliness of such equipment, and it is crucial for ensuring the quality of the final products. This project is the final piece in China National Petroleum Corporation’s transformation and upgrading initiative for integrated petrochemical production in Guangxi; it involves a huge investment and holds great strategic significance. Construction of the project officially began on January 16, 2026, and it is planned to be completed in two phases: the 300,000 tons/year EVA plant (tubular process) is scheduled to be completed by the end of December 2027. 100,000 tons/year H-EVA plant (reactor-based process): Completion is scheduled for the end of February 2028. Upon completion of all the projects, a total production capacity of 400,000 tons per year for high-end EVA will be established. The products will be widely used in key industries such as photovoltaic adhesive films, high-end cables, foam products, and medical devices, thereby helping to fill the domestic gap in EVA suitable for high-grade photovoltaic adhesive films and reducing reliance on imported materials. The biggest technical highlight of this project is that both units utilize the world-leading LUPOTECH technology from LyondellBasell, and employ a dual-process approach of \"tubular method + batch method\" in a clever manner, thereby enabling precise coverage of various market segments. Tubular process (300,000 tons/year): Focus on large-scale production of photovoltaic-grade EVA. Technical features: The tubular reactor achieves a high one-pass conversion rate (usually 25%~35%), making it suitable for large-scale and efficient production. Product advantages: The photovoltaic-grade EVA produced achieves top-tier levels in terms of light transmittance, weather resistance, and cross-linking degree, meeting the stringent requirements for the long-term stable operation of high-efficiency photovoltaic modules. Kettle process (100,000 tons/year): Focus on high-end specialty H-EVA products. Technical features: Batch reactors offer greater production flexibility, enabling the production of products with a wider molecular weight distribution and more complex long-chain structures; they are suitable for high-end customized production in small batches with multiple grades. Product advantages: It is capable of producing high-end cable materials suitable for new energy vehicles and smart grids (with excellent temperature resistance, insulation properties, and aging resistance); foam-grade materials for high-end packaging and automotive interiors (offering lightweight properties, environmental friendliness, and cushioning capabilities); as well as medical-grade EVA for use in infusion tubes and blood bags (requiring low leaching and high biocompatibility).