Developing almond shell-derived activated carbons as CO2 adsorbents

By M. Plaza, C. Pevida, C. Martin, J. Fermoso, J. J. Pis, F. Rubiera. 2010

210 citations recorded by the source corpus.

Abstract Two series of carbon dioxide adsorbents were prepared from almond shells, by carbonisation followed either by activation with CO 2 or by heat treatment in the presence of ammonia gas (amination). Both procedures gave carbons with high CO 2 adsorption capacities in pure CO 2 as well as in a binary mixture of 15% CO 2 in N 2 . Activation with carbon dioxide significantly developed porosity in the samples, mostly in the micropore domain, while amination at 800 °C moderately developed narrow microporosity in the char and incorporated stable nitrogen functionalities, which enhanced CO 2 selectivity. Amination showed two additional advantages over conventional activation with CO 2 : a greater carbon yield and a shorter soaking time.

Subfields: Biomedical Engineering, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/21681b5063e87f27d324805250e0b1005f376c35

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. C. Pevida
2. A. Rashidi
3. J. Manyà
4. M. Aller
5. Wei-hsin Chen

In Materials Chemistry

1. Gang Yu
2. A. Rashidi
3. S. Deng
4. Haoran Wei
5. Jun Huang
6. Bin Wang

In Mechanical Engineering

1. C. Pevida
2. Gang Yu
3. A. Rashidi
4. S. Deng
5. Haoran Wei
6. Jun Huang
7. Bin Wang
8. Wei-hsin Chen

Citations in the corpus

• Activated carbons and amine-modified materials for carbon dioxide capture — a review (2013, methodology): “Almond shell was also selected as the precursor to prepare some AC for CO2 adsorption, and CO2 and NH3 were used as activating agent and post-modification agent, respectively [36].”
• Valorisation of spent coffee grounds as CO2 adsorbents for postcombustion capture applications (2012, methodology): “The volatile matter content is above 80 wt%, which is typical for lignocellulosic materials commonly used in the preparation of activated carbons [32, 47, 48].”
• Pyrolysis for biochar purposes: a review to establish current knowledge gaps and research needs. (2012, background): “555 Plaza et al. (2009)(84) Olive stones Slow pyrolysis up to 600 °C CO2 Not activated − 43 n.”
• Evaluation of CO2 adsorption with eucalyptus wood based activated carbon modified by ammonia solution through heat treatment (2014, background): “For instance, 4 Plaza et al [15] reported that amine modified activated carbon reduced CO2 capture capacity 5 at room temperature due to diminution of microporous volume.”