PMID- 34746581
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211110
IS  - 2470-1343 (Electronic)
IS  - 2470-1343 (Linking)
VI  - 6
IP  - 43
DP  - 2021 Nov 2
TI  - Investigation of Biochar Production from Copyrolysis of Rice Husk and Plastic.
PG  - 28890-28902
LID - 10.1021/acsomega.1c03874 [doi]
AB  - Biomass renewable energy has become a major target of the Thailand Alternative 
      Energy Development Plan (AEDP) since the country's economy is largely based on 
      agricultural production. Rice husk (RH) is one of the most common agricultural 
      residues in Thailand. This research aims to investigate yields and properties of 
      biochar produced from copyrolysis of RH and plastic (high-density polyethylene 
      (HDPE)) at different ratios, temperatures, and holding times. For both individual 
      and copyrolysis, the temperature variation generated more pronounced effects than 
      the holding time variation on both biochar yields and properties. For individual 
      pyrolysis of RH, the maximum biochar yield of  approximately 54 wt % was obtained at 400  degrees C. A 
      shift in temperature from 400 to 600  degrees C resulted in RH biochars with higher fixed 
      carbon (FC) and carbon (C) contents by  approximately 1.11-1.28 and 1.06-1.22 times, 
      respectively, while undetectable changes in higher heating values (HHVs) were 
      noticed. For copyrolysis, obvious negative synergistic effects were observed due 
      to the radical interaction between the rich H content of HDPE and RH biochars, 
      which resulted in lower biochar yields as compared to the theoretical estimation 
      based on individual pyrolysis values. However, the addition of HDPE positively 
      impacted the FC and C contents, especially when 10 and 20 wt % HDPE were added to 
      the feedstock. Besides, higher HDPE blending ratios resulted in biochars with 
      improved HHVs, and >1.5 times improvement in HHV was reported in the biochar with 
      50 wt % HDPE addition in comparison with RH biochar obtained under the same 
      conditions. In summary, biochars generated in this study have the potential to be 
      utilized as a solid fuel or soil amendment.
CI  - (c) 2021 The Authors. Published by American Chemical Society.
FAU - Wantaneeyakul, Nichakorn
AU  - Wantaneeyakul N
AUID- ORCID: 0000-0001-7414-6991
AD  - Department of Environmental Engineering, King Mongkut's University of Technology 
      Thonburi (KMUTT), 126 Pracha Uthit Road, Bang Mot, Thung Khru, Bangkok 10140, 
      Thailand.
FAU - Kositkanawuth, Ketwalee
AU  - Kositkanawuth K
AD  - Department of Environmental Engineering, King Mongkut's University of Technology 
      Thonburi (KMUTT), 126 Pracha Uthit Road, Bang Mot, Thung Khru, Bangkok 10140, 
      Thailand.
FAU - Turn, Scott Q
AU  - Turn SQ
AD  - Hawaii Natural Energy Institute, University of Hawaii at Manoa, Honolulu, Hawaii 
      96822, United States.
FAU - Fu, Jinxia
AU  - Fu J
AUID- ORCID: 0000-0001-9881-3699
AD  - Hawaii Natural Energy Institute, University of Hawaii at Manoa, Honolulu, Hawaii 
      96822, United States.
LA  - eng
PT  - Journal Article
DEP - 20211020
PL  - United States
TA  - ACS Omega
JT  - ACS omega
JID - 101691658
PMC - PMC8567375
COIS- The authors declare no competing financial interest.
EDAT- 2021/11/09 06:00
MHDA- 2021/11/09 06:01
PMCR- 2021/10/20
CRDT- 2021/11/08 06:54
PHST- 2021/07/21 00:00 [received]
PHST- 2021/10/07 00:00 [accepted]
PHST- 2021/11/08 06:54 [entrez]
PHST- 2021/11/09 06:00 [pubmed]
PHST- 2021/11/09 06:01 [medline]
PHST- 2021/10/20 00:00 [pmc-release]
AID - 10.1021/acsomega.1c03874 [doi]
PST - epublish
SO  - ACS Omega. 2021 Oct 20;6(43):28890-28902. doi: 10.1021/acsomega.1c03874. 
      eCollection 2021 Nov 2.