Cradle to Consumer
Identity ID
baa66583-d983-4cc2-b3ad-844ac01a96f4
Materials
Associated ID
847207e3-2250-4e84-8348-1754b8c402ec
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 quicklime mainly includes the crushing of limestone, pretreatment of furnace feed, calcination, and lime processing.
Process Description
Quicklime, chemically known as calcium oxide (CaO), is a white powder or solid substance produced by high-temperature calcination of natural limestone (primarily composed of calcium carbonate). During the calcination process, calcium carbonate in the limestone decomposes into calcium oxide and carbon dioxide gas. Quicklime is strongly alkaline and hygroscopic, capable of undergoing a vigorous chemical reaction with water to form calcium hydroxide (commonly known as slaked lime or limewater), releasing a significant amount of heat in the process. As a desiccant that removes water vapor through chemical absorption, quicklime is commonly used in industries such as steel production, pesticides, pharmaceuticals, leather tanning, and alcohol dehydration.
Time period
2021
2026
Geography
China,Gansu
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of raw lime in a rotary kiln is an efficient thermal processing method for limestone. During the calcination process in the rotary kiln, the temperature inside the kiln is typically controlled between 900°C and 1100°C. This high-temperature environment causes the calcium carbonate in limestone to decompose, producing calcium oxide and carbon dioxide. The rotation of the kiln ensures uniform heating of the limestone particles and consistent thermal decomposition reactions.