LCA dataset : Styrene, ethylbenzene dehydrogenation technology

Styrene, ethylbenzene dehydrogenation technology

StyreneUnit：kgActivity Type：Production Mix

System boundary

Cradle to Gate

Identity ID

964b6fbc-4b39-4266-a761-56559b97fe60

Dataset category

Materials

Associated ID

f14d267e-28d7-40e0-a096-497e20c5e50f

Included activities starts

The production activity boundary of this product starts from raw material preparation

Included activities ends

The production activity boundary of this product ends at styrene production.

Description

Styrene can be used for the synthesis of resins, ion exchange resins, and synthetic rubber. This dataset includes the main raw materials, auxiliary materials, energy, atmospheric emissions, and water emissions in the production process. Infrastructure such as production equipment and factory building construction is not included within the boundaries of the dataset. The data inventory is derived from literature data. The production process of styrene includes raw material preparation, preheating, dehydrogenation reaction, oxidation reaction, cooling and condensation, separation and purification, and the process of styrene production.

Activity Description

The production activities of this product include raw material preparation, preheating, dehydrogenation reaction, oxidation reaction, cooling and condensation, separation and purification, styrene production, etc.

Process Description

Styrene is an organic compound produced through the dehydrogenation reaction of ethylbenzene, with a CAS number of 100-42-5 and a chemical formula of C8H8. The vinyl group's electrons are conjugated with the benzene ring. It is insoluble in water but soluble in most organic solvents such as ethanol and ether. Styrene can be prepared using ethylbenzene dehydrogenation technology. This product is an important monomer for the synthesis of resins, ion exchange resins, and synthetic rubber.

Time period

2020

2024

Geography

China

Macroeconomic value

Business-as-Usual

Data validation

Yes

Technology

Current Technology

Technology comment

Styrene is produced using ethylbenzene dehydrogenation technology. Ethylbenzene is mixed with steam and then brought into contact with a catalyst in a reactor. This reaction takes place under high temperature in a vacuum. Heat is recovered from this reaction, and the hydrocarbon solution is sent to a series of fractionation units. The first separation step removes a small amount (approximately 4-6%) of toluene and benzene produced by cracking. This toluene/benzene stream is typically sent back to the benzene plant. The second separation step removes unreacted ethylbenzene and recycles it back into the system. In the third step, purified styrene monomer is recovered. Residual substrate or coke residue is removed in this third step.

On-chain Information:

Blockchain Hash Value

de030b87c2d4dc25f437fa87beb850b61d9d70a5ab97dcee9b2ed9212a7e8f1a

Timestamp

2025-08-12

Block Number

1621265

Blockchain Technical Support

https://antdigital.com/products/baas

On-chain Data Query