Cradle to Gate
Identity ID
18b998c6-ca61-4232-995c-c869ee32f3f9
Materials
Associated ID
67b9cae6-bd1a-4ee0-bb46-b364645a55d4
Included activities starts
Included activities ends
Description
Low-pressure steam refers to steam with a pressure below 2.5 MPa and a temperature not exceeding 400 °C. This dataset includes major raw and auxiliary materials, energy inputs, atmospheric emissions, and waste from the production process; however, infrastructure such as production equipment and facility construction is excluded from the system boundary. The life cycle inventory is compiled from data sourced from multiple references. For synthetic ammonia production from residue oil, the Shell gasification process is selected. The process resembles coal-based synthetic ammonia production and primarily includes gasification, shift conversion, cold methanol washing, liquid nitrogen washing, and ammonia synthesis. Low-pressure steam, generated as a by-product in this process, has a pressure of 0.44 MPa.
Activity Description
The process of producing synthetic ammonia from residue oil adopts the Sell gasification technology, which is similar to the coal-based synthetic ammonia process. It mainly includes procedures such as gasification, shift conversion, low-temperature methanol washing, liquid nitrogen washing, and ammonia synthesis. Low-pressure steam is a by-product of this process.
Process Description
Low-pressure steam refers to steam with a pressure below 2.5 MPa and a temperature not exceeding 400°C. This low-pressure steam is a byproduct of the residue oil to synthetic ammonia process, with a pressure of 0.44 MPa.
Time period
2019
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology