Propylene can be used to produce various chemicals such as acrylic acid and propylene oxide, as well as synthetic fibers such as polypropylene fiber. Propylene production activities include "Propylene, crude oil refining" and "Propylene, MEG". Additionally, propylene is a by-product of the "1,3-Butadiene, one-step process" and the "1,3-Butadiene, two-step process." The production data for this product represents a weighted average of these production processes. If the specific manufacturing process for propylene is unclear, this dataset can be used. For detailed technical descriptions, system boundaries, and other information, please refer to the individual propylene production datasets. Infrastructure such as equipment manufacturing and facility construction is not included within the system boundary of the dataset.