Capture of Carbon Dioxide With Tetraethylenepentamine-Functionalized Industrial Carbon Nanotubes

Source: AIChE
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Annual Meeting
  • Presentation Date:
    November 4, 2013
  • Duration:
    15 minutes
  • Skill Level:
    Advanced
  • PDHs:
    0.50

Share This Post:

Industrial carbon nanotubes (I-CNTs) is a low-cost substitute for commercially available multi-walled carbon nanotubes (CCNTs). In this work , I-CNTs were functionalized with tetraethylenepentamine (TEPA) for CO2 capture. The performance of I-CNTs-TEPA was compared with that of CCNTs. It was found that I-CNTs-TEPA exhibited high CO2 adsorption capacity similar to CCNTs-TEPA. The adsorption capacity of I-CNTs-TEPA was in the range of 2.145 to 3.088 mmol/g depending on adsorption temperatures. Both adsorption isotherms of I-CNTs-TEPA and the isosteric heat of different adsorption capacity were obtained from experiments. H2O , SO2 or NO has been found to have no significant impacts on the adsorption capacity of CO2. I-CNTs-TEPA was further extruded to form granules (I-CNTs-TEPA-G) with a specific mold. The adsorption capacity of I-CNTs-TEPA and I-CNTs-TEPA-G remained almost the same after 5 cycles of adsorption/regeneration with adsorption conditions of 10 vol % CO2 , 500 ppm SO2 , 500 ppm NO , 100% relative humidity , and a temperature of 313 K. Having advantages such as low-cost , easiness in processing , high adsorption capacity , good poison resistance , and decent performance after recycling , I-CNTs-TEPA seems to be a promising adsorbent for CO2 capture from flue gas.

Presenter(s): 
Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login.

Checkout

Checkout

Do you already own this?

Pricing


Individuals

AIChE Member Credits 0.5
AIChE Members $15.00
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
Non-Members $25.00
Language: