I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com)…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
Focus on Pumps
Self-priming, liquid-ring pumps enable hygienic operation The CFS AS/ASH Series…
NEW PRODUCTS + Show More

Comment

CO2 capture

By Gerald Ondrey |

Chemists from Rice University (Houston; www.rice.edu) are developing an asphalt-based powder that holds 114% of its weight in CO2. The porous material, known as asphalt-porous carbon (A-PC) captures CO2 as it leaves a natural-gas wellhead at room temperature and at the pressures supplied by the rising gas (about 30 atm), while allowing the methane to pass through. The CO2 can then be recovered by simply releasing the pressure. A-PC is made by mixing asphalt with potassium hydroxide at high temperature, and then made into a porous carbon with high (2,780 m2/g) surface area. Further processing with ammonia and then H2 boosted the materials CO2-storage capacity from 93% to 114%. The A-PC is very inexpensive compared to conventional amine-based materials, which can only capture about 13 wt.% of CO2, as well as being corrosive.  
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Quadruple Sensor Lifetime with a Retractable Housing
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production

View More

Live chat by BoldChat