There are many technical combinations of coal to polypropylene: according to the feeding method, it can be divided into two categories: wet feed gasification and dry feed gasification. The typical representatives of wet feed gasification are GE and multi nozzle coal water slurry gasification processes, while the typical representatives of dry feed gasification are She11, GSP, HT-L (aerospace powder coal pressurized gasification) processes, etc; The methanol synthesis process can be divided into high-pressure method, medium pressure method, and low-pressure method according to the different synthesis pressures; The methanol to polypropylene process can be divided into MTO process and MTP process based on the different main products. Different process combinations can bring different environmental impacts. The HDDMTO process mainly produces polyethylene and polypropylene, with by-products such as C4+and methyl tert butyl ether (MTBE) When utilizing this LCA data set for coal-to-polypropylene production, it is crucial to consider the different environmental impacts associated with the various technical combinations (wet feed gasification, dry feed gasification, methanol synthesis pressures, and routes to polypropylene). The foreground data should be directly obtained from the coal-to-olefin enterprises' production data, while the background data includes the consumption of inputs, materials, or energy, plus pollutant emissions. Losses from coal mining and washing should be accounted for with an average loss of 15%, and the carbon partitioning approach should be applied based on the carbon content in the products. The functional unit defined for this study is 1 ton of coal-based polypropylene product, and the LCA scope should cover nine stages from 'cradle to gate', excluding construction, packaging, transportation, use, and disposal of the product.