The Versalis/CB&I dimethyl carbonate (DMC) process produces dimethyl carbonate by the oxidative carbonylation of methanol. It avoids the safety and waste product issues associated with conventional phosgene-based DMC processes. The CO2 produced can be sent to a CO generation unit and recycled back to the process. This environmentally safe process produces high purity product and can be applied to large capacity plants. Since CB&I also offers the Versalis/CB&I diphenyl carbonate (DPC) process, there are opportunities for energy integration as well when both DMC and DPC are produced. Versalis/CB&I also offers high purity dimethyl carbonate (HDMC) technology to produce 99.99% pure DMC. HDMC is generally used for lithium ion batteries.