Abstract
A new sequestration process of anthropogenic CO 2 using waste cement was proposed. The proposed process contains two main reactions. The first reaction is an extraction reaction of calcium ion (Ca 2+) from waste cement particles by pressurized CO 2. The second reaction is a precipitation reaction of CaCO 3. Ca 2+ extracted from waste cement was deposited as a CaCO 3 when the pressure was reduced to the low CO 2 pressure. CaCO 3 was directly disposed or recycled as a raw material of cement production. Energy consumption for the operation was 25.9 Mw/100-Mw power generation, and the sequestration cost was ∼ $83/1 ton carbon sequestration.
Original language | English |
---|---|
Journal | ACS National Meeting Book of Abstracts |
Volume | 227 |
Issue number | 1 |
Publication status | Published - 2004 Jun 1 |
Externally published | Yes |
Event | 227th ACS National Meeting Abstracts of Papers - Anaheim, CA., United States Duration: 2004 Mar 28 → 2004 Apr 1 |
ASJC Scopus subject areas
- Chemistry(all)