skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Carbon dioxide capture from a cement manufacturing process

Patent ·
OSTI ID:1019435

A process of manufacturing cement clinker is provided in which a clean supply of CO.sub.2 gas may be captured. The process also involves using an open loop conversion of CaO/MgO from a calciner to capture CO.sub.2 from combustion flue gases thereby forming CaCO.sub.3/CaMg(CO.sub.3).sub.2. The CaCO.sub.3/CaMg(CO.sub.3).sub.2 is then returned to the calciner where CO.sub.2 gas is evolved. The evolved CO.sub.2 gas, along with other evolved CO.sub.2 gases from the calciner are removed from the calciner. The reactants (CaO/MgO) are feed to a high temperature calciner for control of the clinker production composition.

Research Organization:
Savannah River Nuclear Solutions (SRNS), Aiken, SC (United States); Clemson University (Clemson, SC)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC09-08SR22470
Assignee:
Savannah River Nuclear Solutions, LLC (Aiken, SC); Clemson University (Clemson, SC)
Patent Number(s):
7,976,628
Application Number:
US Patent Application 12/456,613
OSTI ID:
1019435
Country of Publication:
United States
Language:
English