Development of a new treatment process of waste concrete for CO2 reduction in cement industry

Yasuro Katsuyama, Atsushi Iizuka, Akihiro Yamasaki, Minoru Fujii, Kazukiyo Kumagai, Yukio Yanagisawa

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)


This chapter develops a two-step carbonation process of waste cement as a reduction measure of anthropogenic CO2 emission. Laboratory-experimental studies revealed that both reactions comprising the carbonation process, the extraction reaction and the precipitation, could proceed at a reasonably high rate. Energy consumption and the cost for the treatment of the waste cement with a CO2 stream of an oil-fired thermal power station were estimated based on the experimental results. It was found that the process power consumption per power generation in the thermal power plant is as much as 52.8 MW /100 MW, and the cost for the CO2 reduction is about USD 80 per ton-CO2. © 2005

Original languageEnglish
Title of host publicationGreenhouse Gas Control Technologies
PublisherElsevier Ltd
Number of pages7
ISBN (Print)9780080447049
Publication statusPublished - 2005
Externally publishedYes

ASJC Scopus subject areas

  • Energy(all)


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