Cradle to Gate
Identity ID
f783fe0b-710c-452b-87e0-35cecb7adafc
Materials
Associated ID
a0f8e5f6-b6ac-488c-bde8-f5326aa25658
Included activities starts
Included activities ends
Description
Propylene can be used to produce various chemicals such as acrylic acid and propylene oxide, as well as synthetic fibers like polypropylene fiber. The dataset includes primary raw materials, auxiliary materials, energy, and waste from the production process; however, infrastructure such as production equipment and facility construction is not within the system boundary of this dataset. The life cycle inventory data are sourced from literature. The production process of 1,3-butadiene involves several steps, including raw material preparation, dehydration reaction, catalyst selection, coupling reaction, and product separation and purification, with propylene being a by-product of this process.
Activity Description
The production activities of this product include raw material preparation, dehydration reaction, catalyst selection, coupling reaction, product separation and purification, among which propylene is a by-product of this process.
Process Description
Propylene is an organic compound with the CAS number 115-07-1. It is known as "propene" under IUPAC nomenclature, with the molecular formula C3H6. It is a gas under normal temperature and pressure conditions, possessing a faint, slightly unpleasant odor. It is modeled as a pure substance. Modeling this substance in solution requires users to add their chosen solvent into the model. At the consumer level, propylene is used in the following products: 1. Plastics and resin products, used in manufacturing various packaging materials and everyday items; 2. Textiles, used for producing synthetic fibers such as polypropylene fiber. In industrial settings, this material is used to manufacture products in the following industries: 1. Chemical industry, for producing various chemicals such as acrylic acid and propylene oxide; 2. Construction materials, for manufacturing concrete additives and other construction-related products; 3. Automotive industry, for producing automotive components such as bumpers and interior parts.
Time period
2020
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The two-step ethanol method for preparing 1,3-butadiene was developed based on the one-step method. First, in one reactor, ethanol is dehydrogenated to form acetaldehyde under the catalysis of a basic catalyst (such as a copper-based catalyst); then, in another reactor, acetaldehyde reacts with ethanol to produce butadiene. The chemical reactions are as follows:
C2H6O -> C2H4O + H2
C2H6O + C2H4O -> C4H6 + 2H2O