Cradle to Consumer
Identity ID
0aa4f1ad-79fb-4b7c-942f-aa5c3e73a197
Materials
Associated ID
b49f39ef-cf8b-4fb7-b177-d60bd26b444d
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. Oxygen is widely used in fields such as medical first aid, aerospace oxygen supply, metal smelting, welding and cutting, and as an oxidant; Oxygen is modelled as a pure substance; when modelling this substance the user needs to add a solvent of their choice in the model; the dataset contains the main raw and auxiliary materials, energy, waste and atmospheric emissions of the production process, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include air filtration, compression, cooling, purification and fractionation. Nitrogen and argon are by-products of this production process.
Activity Description
The production activities of this product include air filtration, compression, cooling, purification, fractionation and other processes.
Process Description
Oxygen chemical formula O2, CAS No. 7782-44-7, is a colorless, odorless and tasteless gas at normal temperature and pressure. Its liquid form is a light blue transparent liquid, with a boiling point of -183°C under standard atmospheric pressure, a critical temperature of 154.6K, and a density of about 1.14g/cm3 (at -183°C). It has combustion-supporting and oxidizing properties. It is non-flammable and can undergo oxidation reactions with most substances. Oxygen is a key substance for maintaining life activities. It is widely used in medical emergency and aerospace oxygen supply. It is used in industry for metal refining, welding and cutting, and as an oxidant in chemical production.
Time period
2021
2026
Geography
China,Zhejiang
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Cryogenic air separation is the absolute mainstream technology for large-scale production of liquid industrial gases (oxygen, nitrogen, argon, etc.). It has high technological maturity and stable product purity. It accounts for more than 95% of the domestic liquid industrial gas market and is the core technology path for industrial gas supply. This data set represents this mainstream technology: the air enters the compressor after being filtered, is then cooled by the pre-cooling system, and then passes through the purification system and enters the fractionation tower to obtain liquid oxygen, liquid nitrogen and liquid argon respectively.