Methanol can be used for synthetic gas production, is an important chemical raw material, and also serves as a fuel; this dataset includes primary raw and auxiliary materials, energy consumption in the production process, while infrastructure such as production equipment and factory construction is excluded from the system boundary; the life cycle inventory data are sourced from literature; the methanol production process includes steps such as natural gas extraction, natural gas processing, desulfurization, steam reforming, synthetic gas purification, catalytic synthesis, and distillation.