Cradle to Consumer
Identity ID
2c660752-64f9-4c57-9a89-755a126a5eac
Materials
Associated ID
76788140-8130-4dd5-bbfa-60e49a22bc95
Included activities starts
Included activities ends
Description
This is a market dataset representing the consumption market in the region. It includes transportation of the product from the factory gate to consumption, with transport services calculated according to the regional transportation conditions for the product.
Activity Description
The production process of granular silicon includes steps such as hydrogen production via water electrolysis, hydrogen purification, hydrogen drying and regeneration, cold hydrogenation, silane preparation, granular silicon fluidized bed, and post-processing.
Process Description
High-purity polycrystalline silicon, derived from metallurgical-grade industrial silicon and purified through physical or chemical methods to a purity of over 99.9999%, is used in the manufacture of solar cells.
Time period
2021
2026
Geography
China,Jilin
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The core of the silane fluidized bed process for producing granular silicon is the direct decomposition of silane gas (SiH4) in a fluidized bed reactor into granular polycrystalline silicon product. The production process includes key steps such as alkali electrolysis of water for hydrogen generation, hydrogen purification, hydrogen drying and regeneration, cold hydrogenation, silane preparation, granular silicon fluidized bed, and post-treatment.