(PDF) Rapid limestone calcination using Microwave Assist Technology

[Andrew Lockley]

Poster's note: older paper, but may interest those concerned with high temperature DAC. 

https://www.researchgate.net/publication/260210572_Rapid_limestone_calcination_using_Microwave_Assist_Technology

Rapid limestone calcination using Microwave Assist Technology

July 2011

Project: Limestone calcination using Microwave Assist Technology

Authors:

Morgana Fall

Gibran Esquenazi

Rice University

Shawn Michael Allan

Allan Materials Inc.

Holly Shulman

Ceralink, Inc.

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Citations (2)

References (12)

Figures (1)

Abstract and Figures

Ceralink Inc. is applying Microwave Assist Technology ™ (MAT™) to the calcination of limestone to demonstrate the potential for significant energy reduction in themanufacturing of lime. MAT™ is a method to simultaneously apply traditional radiantheat and microwave energy in the same kiln, leading to fast volumetric product heating.Microwave thermal activation targets and directly heats limestone, eliminating thereliance on thermal conduction as a means of energy transfer. In addition, less energy iswasted in heating non-product, such as the atmosphere and kiln lining. This paper includes studies of microwave materials interactions through dielectric propertymeasurements, and lab-scale microwave hybrid calcination tests. This technology shows potential to increase the speed of lime production by enhancing the reaction rate, whichwill significantly reduced energy consumption. Production scale implementation of MAT™ calcining is projected to save trillions of BTU/yr in the lime and cementindustries. This work is supported through a Department of Energy Industrial Grand Challenge grant.