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Lee DJ. Gasification of municipal solid waste (MSW) as a cleaner final disposal route: A mini-review. BIORESOURCE TECHNOLOGY 2022; 344:126217. [PMID: 34715334 DOI: 10.1016/j.biortech.2021.126217] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
The production of hydrogen-rich syngas from municipal solid waste (MSW) by pyrolysis/gasification is one of the most promising waste-to-energy pathways for realizing a circular bioeconomy. This mini-review provides an overview of current research and development efforts in the field, focusing on the development of syngas upgrades and novel gasification processes, with the ultimate goal of making MSW gasification a sustainable and affordable route for the final disposal of MSW. A graphical assessment protocol is proposed to support comprehension of the main reactions that are involved in the MSW gasification. MSW gasification studies are reviewed with the prospects considered to provide a reference for future work.
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Affiliation(s)
- Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 10617 Taiwan; Departmegaont of Mechanical Engineering, City University of Hong Kong, Kowloon Tang, Hong Kong, China; College of Engineering, Tunghai University, Taichung 40704, Taiwan.
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Peculiar effect of acylamino and cyan groups on thermal behavior of 2-(1-cyano-1-methylethyl)azocarboxamide. J Loss Prev Process Ind 2021. [DOI: 10.1016/j.jlp.2020.104379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Chen S, Zhao S, Ma H, Wei L, Kong X, Wang R, Duo Y. Research on thermal decomposition characteristics of H foaming agent with different moisture contents. J Loss Prev Process Ind 2020. [DOI: 10.1016/j.jlp.2020.104164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lan Y, Li Z, Xie W, Li D, Yan G, Guo S, Pan C, Wu J. In situ fabrication of I-doped Bi 2O 2CO 3/g-C 3N 4 heterojunctions for enhanced photodegradation activity under visible light. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121622. [PMID: 31806444 DOI: 10.1016/j.jhazmat.2019.121622] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Iodine-doped Bi2O2CO3/g-C3N4 heterojunctions consisting of graphitic carbon nitride (g-C3N4) and iodine-doped bismutite (Bi2O2CO3) components were successfully in situ synthesized by a one-pot hydrothermal method. Characterizations such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM) demonstrated iodine was favorably doped into the Bi2O2CO3 component, of which the {001} facets grew in situ from {002} facets of g-C3N4 for the heterostructure construction of I-doped Bi2O2CO3/g-C3N4 (IB/CN). The photocatalytic activity of catalysts was evaluated by the degradation efficiency of 1,5-dihydroxynaphthalene under visible light. 1.5-IB/CN with a reasonable iodine doping amount (Bi: I molar ratio = 1.0: 1.5) exhibited the superior photodegradation performance compared to Bi2O2CO3, achieving an 85.5% removal ratio after 100 min illumination. The enhanced activity of 1.5-IB/CN was attributed to both of the heterostructure that promoted the separation of photoinduced carriers and iodine doping that tuned the bandgap for sufficient visible-light harvesting. The degradation intermediates of 1,5-dihydroxynaphthalene in the system were determined and its possible photodegradation pathway was proposed in detail. This study provides a rational approach for enhancing the visible-light catalytic activity of wide-bandgap Bi2O2CO3, and reveals a new perspective on the removal mechanism of organic pollutants.
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Affiliation(s)
- Yunlong Lan
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China; State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum, Beijing 102249, China
| | - Zesheng Li
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Wenyu Xie
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Dehao Li
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China.
| | - Guangxu Yan
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum, Beijing 102249, China
| | - Shaohui Guo
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum, Beijing 102249, China.
| | - Chao Pan
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Jingwei Wu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
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Laiwang B, Liu SH, Shu CM. Thermal hazards of benzoyl peroxide and its derived process products through theoretical thermodynamics assessment and different calorimetric technologies. JOURNAL OF HAZARDOUS MATERIALS 2019; 380:120891. [PMID: 31325690 DOI: 10.1016/j.jhazmat.2019.120891] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 05/01/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Benzoyl peroxide (BPO) is one of the primary OPs used as an initiator, curing agent, or medicine. Some of the plastic processes use BPO without air for maintaining the efficiency of the entire reaction. However, there have been numerous accidents involving BPO in petrochemical plants, especially those related to fire and explosion, that are due to its unstable thermal properties and peroxy bond (OO). BPO can be identified as a typical substance with autocatalytic reaction characteristics. Therefore, the related processes and their products are critical to prevent these kinds of chemical contingencies. This research was based on two types of instruments (nonisothermal and isothermal calorimetry), and theoretical methods to further determine the thermal hazard level. From the experimental results for BPO and BPO mixed with its by-products, the heat of decomposition was much higher (from 800 to 1235 J/g), the time to maximum rate under isothermal conditions was much shorter (from 99.1 to 17.4 h at 75.0 °C), and the apparent activation energy was much lower (from 118 to 91 kJ/mol) after BPO was mixed with its by-products. Therefore, the hazard level of BPO mixed with its by-products from the reaction process was much higher than that of pure BPO.
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Affiliation(s)
- Bin Laiwang
- Department of Ammunition Engineering and Explosion Technology, Anhui University of Science and Technology, Anhui 232001, PR China; Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin 64002, Taiwan, ROC
| | - Shang-Hao Liu
- Department of Ammunition Engineering and Explosion Technology, Anhui University of Science and Technology, Anhui 232001, PR China.
| | - Chi-Min Shu
- Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (YunTech), Douliou, Yunlin 64002, Taiwan, ROC; Center for Process Safety and Industrial Disaster Prevention, School of Engineering, YunTech, Yunlin 64002, Taiwan, ROC.
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