C4/C8 primary zddp (made by iso-C4/C8 ZDDP production )

Process description: The iso-C4/C8 ZDDP production produces the main product C4/C8 primary zddp. For this purpose, the process consumes hydrochloric acid, zinc oxide, ammonia, isobutanol, caustic soda (50%), calcium oxide, phosphorus pentasulfide, nitrogen, 2-ethylhexanol, ferric chloride, titanium dioxide, and chromium oxide. Utilities consumed comprise thermal energy, electricity, process water, steam, cooling water, unspecific inorganic chemical, cement, and disposal of cement. Hydrogen sulfide is produced as by-product. Utility demands in form of thermal energy and electricity are estimated according to the chemical park in Gendorf. For each kg of chemical product, 1.2 MJ electricity and 2 MJ thermal energy are required. A conversion rate of 95% is assumed. Process wastes are treated in municipal waste incinerators. Dataset type is technology-specific (simplified extension layer). Allocation type is allocation via price. In case of energy co-production, allocation via avoided burden is applied for the co-produced energy. CAS RN is unspecific. All datasets are based on the attributional LCA approach and the methodology defined in the cm.chemicals methodology document.