Cradle to Gate
Identity ID
bb55100d4fc9458194ec2865fe9068af
Materials
Associated ID
f0cb6775-207a-403c-a898-7580abcbf348
Included activities starts
Included activities ends
Description
1,3-Butadiene is used in the production of synthetic rubber, synthetic resins, nylon, and other materials. This dataset includes major raw materials, energy inputs, and waste outputs from the production process; however, infrastructure such as production equipment and factory construction is not within the system boundary of the dataset. The life cycle inventory data are sourced from literature. The production process of 1,3-butadiene includes steps such as raw material preparation, dehydrogenation and dehydration reactions, catalyst selection, catalytic reactions, and product separation and purification.
Activity Description
The production activities of this product include raw material preparation, dehydrogenation and dehydration reactions, catalyst selection, catalytic reactions, product separation, and purification processes.
Process Description
1,3-Butadiene is an organic compound with the chemical formula C4H6. It is a colorless gas with a faint aromatic odor, insoluble in water but soluble in most organic solvents such as acetone, benzene, acetic acid, and esters. This product is produced via a one-step process and serves as a raw material for the production of synthetic rubber, synthetic resins, nylon, and others.
Time period
2020
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The one-step ethanol method for preparing 1,3-butadiene uses ethanol as a raw material, which reacts in a reactor under the action of a catalyst at a certain temperature to produce butadiene in a single step. The chemical reaction is as follows: 2 C2H6O -> C4H6 + 2H2O + H2. Based on the chemical reaction, the molar yield of 1,3-butadiene from 1 kg of ethanol is 0.587 kg. In practice, the yield of 1,3-butadiene is lower than the stoichiometric yield due to the formation of by-products such as diethyl ether, ethylene, n-butanol, butenes, and heavy products (C6+).