Pinghu Petrochemical Co., Ltd. is located at No. 136 Tonggang Road, Dushan Port Economic Development Zone, Pinghu City. The company's technical upgrade project for an annual production capacity of 360,000 tons of acrylic acid (200,000 tons of refined acrylic acid), 180,000 tons of butyl acrylate, and 180,000 tons of isooctyl acrylate has a total investment of 61 million yuan. The project includes energy-saving renovations of the existing main units in Workshop 2: two 90,000-ton acrylic acid production units, one 100,000-ton refined acrylic acid production unit, and one 180,000-ton acrylate production unit. This includes replacing the existing units with first-class energy-efficient motors and optimizing turbine surge control to reduce overall energy consumption. Simultaneously, the technical upgrade of the 180,000-ton-per-year butyl acrylate unit in Workshop 2 will be upgraded to a production capacity of 180,000 tons per year. The project includes a 10,000-ton/year octyl acrylate plant and a newly constructed butyl acrylate wastewater recovery unit with a designed treatment capacity of 30 tons/hour. This unit will pre-treat the high-concentration neutralized wastewater from the butyl acrylate plant (mainly containing sodium acrylate, sodium p-toluenesulfonate, butyl acrylate, butanol, and impurities), recovering difficult-to-treat p-toluenesulfonic acid, acrylic acid, and dilute alkali solution from the wastewater. Supporting facilities such as a circulating water station, tank area, substation and control room, air compressor station, laboratory, and fire-fighting facilities will be built on existing infrastructure.
In July 2022, the company commissioned Zhejiang Provincial Environmental Technology Co., Ltd. to prepare the "Environmental Impact Report for the Pinghu Petrochemical Co., Ltd.'s 360,000-ton/year Acrylic Acid (200,000-ton/year Refined Acrylic Acid) and 180,000-ton/year Butyl Acrylate and 180,000-ton/year Isooctyl Acrylate Technical Upgrade Project." The project was approved by the Pinghu Branch of the Jiaxing Municipal Bureau of Ecology and Environment on August 8, 2022.
