LCA dataset : high carbon ferrochrome, submerged arc furnace process, 4%~10%C

high carbon ferrochrome, submerged arc furnace process, 4%~10%C

high carbon ferrochrome

Unit：kgActivity Type：Consumption Mix

GWP100

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System boundary

Cradle to Consumer

Identity ID

914de42e-46ff-49e2-a7f5-080617ffc7f6

Dataset category

Materials

Associated ID

70e84943-866b-49f3-8eaa-020ce0edf920

Included activities starts

The activity begins with the production and import of "high carbon ferrochrome" from the region.

Included activities ends

The activity ends with the supply of "high carbon ferrochrome" to consumers of this product. Transportation is included, but the loss of the product during transportation is negligible and therefore is not included.

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 consumption end, and the transport service is calculated based on the transport situation of the product in the region. This process refers to the production activity of smelting 1 kg of high-carbon ferrochrome by the submerged arc furnace process. High-carbon ferrochrome is a ferroalloy with a carbon content of 4%～10%, with chromium and iron as its main components, and is one of the main alloying agents used in the iron and steel industry. This dataset includes the input of raw and auxiliary materials such as chromium ore, silica, coke, serpentine and electrode paste, and energy and energy media such as electricity and water; the output includes the product high-carbon ferrochrome, the waste slag and dedusting ash (which can be recycled to cement plants), as well as emissions to water and air. The data inventory is formed by merging multi-source data, and the data representativeness is optimized using industry standards such as the 'Cleaner Production Standard - Iron and Steel Industry (Ferroalloy)' and the '3140 Ferroalloy Industry Coefficient Handbook'.

Activity Description

This production activity uses a fully enclosed submerged arc furnace to produce high-carbon ferrochrome. The basic principle is to use carbon to reduce chromium and iron oxides in chromium ore. The production process includes the following steps: 1) raw material transportation, 2) closed submerged arc furnace smelting, 3) tapping and pouring, 4) finishing and finished product warehouse, 5) dust removal and briquetting system, 6) gas purification system.

Process Description

High-carbon ferrochrome is an iron alloy with chromium and iron as its main components. It is one of the main alloying agents used in the steel industry. In addition to the main components chromium and iron, it also contains impurities such as carbon, silicon, sulfur, and phosphorus. High carbon ferrochrome contains 50% to 67% chromium and 4% to 10% carbon.

Time period

2024

2026

Geography

China,Beijing

Macroeconomic value

Business-as-Usual

Data validation

Yes

Technology

Current Technology

Technology comment

Submerged arc furnaces use carbon as a reducing agent to reduce oxides in ores to produce ferroalloys. The mixed charge is added into the furnace, and the electrodes are buried in the charge. Heating is achieved by arc heat and resistance heat generated by the electric current passing through the charge. The molten metal and slag collect at the bottom of the furnace, and iron and slag are regularly tapped through the taphole. The production process is continuous.