Cement Industry Environmental Consortium

Carbon Capture and Reuse Project

The CIEC is a non-profit corporation organized in 1985

Members include cement companies, air districts, and utilities

Mission Statement is to:

a. undertake research relating to environmental issues affecting the cement manufacture and supporting industries;

b. implement those developed technologies

Biosolids

Cement Kiln Dust Utilization by Kiln

California Cement and CO₂

California largest producer of cement in US

California largest importer of cement in US

Most cement companies foreign owned

Average plant produces 1 million tons cement/yr (11plants producing 13 M tons)

Each ton of cement produces 1 ton CO₂

40% CO₂ from fuel 60% from chemistry

Today California’s cement demand is very high, creating unprecedented delays in construction

Carbon Capture and Reuse Project

Potential project identified in 2001

Initial evaluation by Technology Committee indicated possible reuse applications for recovered CO₂ – Oil fields and fertilizers

Current amine recovery systems determined to too small with recovery too costly plus capital on order of 100 million dollars

Carbon Capture and Reuse Project

Potential for concurrent reduction of conventional pollutants if CO₂ recovered

The CIEC received a $70,000 grant by the MDAQMD to undertake an initial solicitation, review of received proposals, and to develop additional funding sources

Carbon Capture and Reuse Project

CIEC members made a presentation to the ARB, with CEC staff present, soliciting funding

CIEC has attempted to identify funding sources from DOE (grants)

DOE has directed us to the Regional Partnerships

CIEC not opposed to request congressional funding

Carbon Capture and Reuse Project

The CIEC CO₂ project differs from that of the Portland Cement Association

Very promising line of inquiry that doesn’t seem to fit available R&D funding "boxes". A square peg in a world of round holes

We are still looking for funding!

Carbon Capture and Reuse Project

Response to the solicitation

37 specific projects received

25 proposal teams

7 proposals selected for interviews

2 recovery technologies selected

2 awards made for theory validation

Temperature Swing Adsorption

Enzymatic Recovery

Carbon Capture and Reuse Project

Generic Types of Responses

Waste heat conversion to electric power

Reduce emissions via plant audits

Treatments for flue gas

Change fuel or cement chemistry

Conversion of CO₂ to salable products

Carbon Capture and Reuse Project

Temperature Swing Adsorption

Kent Knaebel - Contact

Adsorbent used to capture CO₂

Temperature change releases CO₂

Cost of recovery estimated at < $10/ton

Carbon Capture and Reuse Project

Temperature Swing Adsorption

Regenerating adsorbent

Inlet temperature ± 200° C

Exit temperature ± 40 ° C

Moisture in exhaust may be an issue

CO₂ recovery 90% +

Carbozyme Inc.

Mike Trachtenberg - Contact

Enzyme both captures and releases CO₂

Modular units for project sizing and replacement

Cost of recovery estimated at $15/ton

CO₂ concentration less an issue

Carbon Capture and Reuse Project

Enzymatic Recovery

Enzyme temperature limited (40 –50° C) with potential of 85 ° C.

Life cycle of membrane/enzyme affected by NOx and SOx in system

Carbon Capture and Reuse Project

CIEC member plants available for commercial demonstration

Location of demonstration based on reuse option and volumes CO₂ to be recovered

Target project size of 5 tons/day of CO₂

Carbon Capture and Reuse Project

Carbon Capture and Reuse Project

Completion of Validation testing completed by November 15, 2004

Carbon Capture and Reuse Project

 We are still looking for funding!!