China MIIT Recognizes DODGEN Melt Crystallization for 72% Energy Cut in Battery Solvent Purification
kipost.netChina's Ministry of Industry and Information Technology has selected a battery-grade ethylene carbonate purification retrofit as a national low-carbon case. The project, jointly delivered by Shanghai DODGEN Chemical Technology and Shida Shenghua, replaces conventional distillation with continuous melt crystallization. It cuts unit energy consumption by 72%, from 120.9 to 33.3 kg of standard coal per tonne, across a 90,000-tonne-per-year production line. The retrofit avoids about 21,000 tonnes of CO2 emissions annually and was completed in five months. This technology matters because ethylene carbonate is a core solvent in lithium-ion battery electrolytes. Reducing its production footprint helps decarbonize the battery supply chain without sacrificing product quality. The MIIT recognition signals that China is prioritizing energy-efficient purification methods for specialty chemicals. For carbon market participants, the verified energy savings and emissions reductions offer a concrete example of industrial decarbonization with measurable outcomes.