Work

Flash Calcination of Lime Mud from the Forest Industry: Influence of the Gas Atmosphere and Temperature on Calcination Behavior and Product Morphology

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide In this article, the effects of calcination temperature and calcination atmosphere on the properties of the lime produced during flash calcination of industrial lime mud samples in a pilot-sized drop tube furnace have been studied. Flash calcination was performed at a wide range of temperatures between 800 and 1300 °C and different gas mixtures containing N 2, CO 2, and H 2 O in the calcination atmosphere. The effect of the calcination condition on the key conditions of the produced CaO, such as chemical composition, surface area, porosity, and particle morphology, has been shown. The addition of CO 2 to the inert atmosphere led to slower calcination rates and a higher onset temperature for the calcination, but no changes to morphology. Furthermore, the addition of H 2 O to the calcination atmosphere generally led to lower calcination rates at higher temperatures and smoother particles in comparison to CO 2 and N 2 .

Source: Industrial & Engineering Chemistry Research

DOI: 10.1021/acs.iecr.5c01063

Authors: Ole Reinsdorf, Therese Vikström, Henrik Wiinikka

Institutions: RISE Research Institutes of Sweden, Luleå University of Technology

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Climate action

Open Access status: hybrid

Estimated APC paid: $4,500