Heart Tickles with Biochar
(There is a quick question for you at the end.)
Having read a number of articles with titles in the reference list at the end of this blogpost, I present a synopsis of what I aim to explore in the long run. The whole journey has to do with:
Biochar in Environmental and Energy Applications
From
the inception of industrial revolution, global warming has been a major
environmental concern as the earth continues to have an upward shift in its
annual average temperature
 |
| TSP: What did you call it again, Biosh-what? |
Delving
deeper into the stated areas, overwhelming majority of scientists have begun to
associate their research with sustainability and the specific potentials of
biochar. Biochar a solid, carbonaceous, porous material is produced by the
thermochemical conversion of biomass, at a relatively minimal temperature
ranging from 500-700C, in an oxygen-deficient environment.
 |
| TSP: Wow, Awesome Biochar |
While
it has a multifunctional capacity, developing high performance carbon materials
from it for both energy and environmental applications appears to be a
challenge.
References
(1) Wan, Z.; Sun, Y.; Tsang, D. C. W.; Khan,
E.; Yip, A. C. K.; Ng, Y. H.; Rinklebe, J.; Ok, Y. S. Customised Fabrication
of Nitrogen-Doped Biochar for Environmental and Energy Applications. Chemical
Engineering Journal 2020, 401.
https://doi.org/10.1016/j.cej.2020.126136.
(2) Awolesi, O.; Osobamiro, T.; Oshinowo, A.;
Alabi, O.; Jegede, L. Low Carbon Emission Studies: A Bibliometric Approach. . International
Journal of Innovative Science and Research Technology 2019, 4
(2), 294–300.
(3) Chen, W.; Meng, J.; Han, X.; Lan, Y.;
Zhang, W. Past, Present, and Future of Biochar. Biochar 2019, 1
(1), 75–87. https://doi.org/10.1007/s42773-019-00008-3.
(4) Lu, L.; Yu, W.; Wang, Y.; Zhang, K.; Zhu,
X.; Zhang, Y.; Wu, Y.; Ullah, H.; Xiao, X.; Chen, B. Application of
Biochar-Based Materials in Environmental Remediation: From Multi-Level
Structures to Specific Devices. 2020, 2 (1).
https://doi.org/10.1007/s42773-020-00041-7.
(5) Bartoli, M.; Giorcelli, M.; Jagdale, P.;
Rovere, M.; Tagliaferro, A. A Review of Non-Soil Biochar Applications. Materials
2020, 13 (2). https://doi.org/10.3390/ma13020261.
(6) Tang, F.; Xu, Z.; Gao, M.; Li, L.; Li, H.;
Cheng, H.; Zhang, C.; Tian, G. The Dissipation of Cyazofamid and Its Main
Metabolite in Soil Response Oppositely to Biochar Application. Chemosphere
2019, 218, 26–35.
https://doi.org/10.1016/j.chemosphere.2018.11.094.
(7) Sharma, R.; Jasrotia, K.; Singh, N.;
Ghosh, P.; srivastava, S.; Sharma, N. R.; Singh, J.; Kanwar, R.; Kumar, A. A
Comprehensive Review on Hydrothermal Carbonization of Biomass and Its
Applications. Chemistry Africa 2020, 3 (1).
https://doi.org/10.1007/s42250-019-00098-3.
(8) Gao, M.; Wang, W.-K.; Zheng, Y.-M.; Zhao,
Q.-B.; Yu, H.-Q. Hierarchically Porous Biochar for Supercapacitor and
Electrochemical H2O2 Production. Chemical Engineering Journal 2020,
402. https://doi.org/10.1016/j.cej.2020.126171.
(9) Kumar, A.; Bhattacharya, T.; Mozammil
Hasnain, S. M.; Kumar Nayak, A.; Hasnain, M. S. Applications of
Biomass-Derived Materials for Energy Production, Conversion, and Storage. 2020,
3, 905–920. https://doi.org/10.1016/j.mset.2020.10.012.
(10)
Chen, Y.-D.; Liu, F.; Ren, N.-Q.; Ho,
S.-H. Revolutions in Algal Biochar for Different Applications:
State-of-the-Art Techniques and Future Scenarios. Chinese Chemical Letters
2020, 31 (10), 2591–2602. https://doi.org/10.1016/j.cclet.2020.08.019.
(11)
Xin, D.; Barkley, T.; Chiu, P. C.
Visualizing Electron Storage Capacity Distribution in Biochar through Silver
Tagging. Chemosphere 2020, 248.
https://doi.org/10.1016/j.chemosphere.2020.125952.
(12)
Zou, W.; Gao, B.; Ok, Y. S.; Dong, L.
Integrated Adsorption and Photocatalytic Degradation of Volatile Organic
Compounds (VOCs) Using Carbon-Based Nanocomposites: A Critical Review. Chemosphere
2019, 218, 845–859.
https://doi.org/10.1016/j.chemosphere.2018.11.175.
(13)
Panwar, N. L.; Pawar, A.; Salvi, B. L.
Comprehensive Review on Production and Utilization of Biochar. SN Applied
Sciences 2019, 1 (2).
https://doi.org/10.1007/s42452-019-0172-6.
Quick Question: What's my Last Name? Figure out which reference mentions me, and comment in the comment section below.
Great post! Great insights!
ReplyDeleteI presume temperatures of 500-700C is still high temperature though, so what is it relative to? Why not temperatures below 500C?
Thank you. In pyrolysis of biomass, there are three possible products: biochar (solid), bio-oil, and gas. The choice temperature is largely relative to the heating rate and desired product.
ReplyDeleteI mean, for slow pyrolysis, the operating conditions are often:
Temperature: 300–700°C
Vapor residence time: 10–100 min
Heating rate: 0.1–1°C/s
Feedstock size: 5–50 mm
This yields:
Biooil: ∼30 wt%
Biochar: ∼35 wt%
Gases: ∼35 wt%
For fast pyrolysis, the operating conditions are:
Temperature: 400–800°C
Vapor residence time: 0.5–5 s
Heating rate: 10–200°C/s
Feedstock size: ∼3 mm
This yields:
Biooil: ∼50 wt%
Biochar: ∼20 wt%
Gases: ∼30 wt%
For flash pyrolysis, the operating conditions are:
Temperature: 800–1000°C
Vapor residence time: up to 0.5 s
Heating rate: 200-1000°C/s
Feedstock size: up to 0.2 mm
This yields:
Biooil: ∼75 wt%
Biochar: ∼12 wt%
Gases: ∼13 wt%
And Biochar is the desired product.
For more reads, please see https://doi.org/10.1016/C2017-0-04415-4
Hope this helps.