Journal of The Energy Institute最新文献

{"title":"Comprehensive performance investigation of inexpensive oxygen carrier in chemical looping gasification of coal","authors":"Yanan Wang ,&nbsp;Jiawei Zhou ,&nbsp;Jun Hu ,&nbsp;Haibo Zhao","doi":"10.1016/j.joei.2024.101899","DOIUrl":"10.1016/j.joei.2024.101899","url":null,"abstract":"<div><div>Coal chemical looping gasification (CLG) using inexpensive oxygen carrier (OC) is a promising technology to obtain H₂-rich syngas, and the OCs of copper/iron ore composite with an autothermal capability and red mud have been screened as the potential candidates in our previous investigation. However, the detailed synergetic effect between copper ore and iron ore, and the effect of reaction conditions on syngas production at different reactor scales are still unclear. In this work, the synergetic effect between copper ore and iron ore in composite OCs with different mixing ratios are detailedly investigated through H₂ temperature-programmed reduction (TPR) tests. The results indicate that the copper ore addition can contribute the reduction of iron ore and form a new phase of CuFe₂O₄ between CuO in the copper ore and Fe₂O₃ in the iron ore, meanwhile observing the composite OC of Cu20Fe80@C generating a stronger synergetic effect in comparison to adjencent OCs. Moreover, the optimization of reaction conditions are conducted in a batch fluidized bed reactor (BFBR) by regulating the temperature, oxygen to fuel (O/F) ratio, and steam concentration for the Cu20Fe80@C and red mud OCs. It is found that a higher temperature is conducive to improving the coal conversion and syngas yield on the whole, but not the H₂-rich syngas production. While a lower O/F ratio favors the preparation of H₂-rich syngas, and the optimal steam concentration is determined as 50 vol% for both OCs under comprehensive consideration of gasification time, syngas yield and heating cost. Additionally, the copper/iron ore composite OC with excellent CLG performance and bed stability is further confirmed in a semi-continuous fluidized bed reactor (SFBR), which shows the effects of temperature and O/F ratio on syngas production similar to those in BFBR. In summary, the promising copper/iron ore composite OC exhibits good adjustability and adaptability for CLG process in terms of reaction conditions and reactor scales, respectively.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101899"},"PeriodicalIF":5.6,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic recovery of renewable hydrocarbon resources via co-pyrolysis of non-edible linseed and waste polypropylene: A study on influence of plastic on oil production and their utilization as a fuel for IC engine","authors":"S. Mehanathan ,&nbsp;P. Madhu ,&nbsp;C. Sowmya Dhanalakshmi ,&nbsp;R. Vijayakumar","doi":"10.1016/j.joei.2024.101905","DOIUrl":"10.1016/j.joei.2024.101905","url":null,"abstract":"<div><div>This study looked into the co-pyrolysis of linseed and polypropylene to produce pyrolysis oil as a fossil fuel substitute for IC engines. The outcomes showed positive synergistic benefits on oil yield from co-pyrolysis as compared to the pyrolysis of individual components. Initially, the study investigated the effect on polypropylene during co-pyrolysis with linseed at temperatures between 350 °C and 650 °C under different blend ratios. The maximum oil yields for the pyrolysis of linseed and polypropylene obtained were 61.1 wt% and 73.6 wt%, respectively, whereas the maximum positive synergy on oil yield was 6.2 % at 2:3 blend ratio. Fourier transform infrared spectroscopy (FT-IR), gas chromatography mass spectrometry (GC-MS), and physical characteristics were used to further evaluate the pyrolysis oil produced at maximum synergy. It was found that the oil had a higher calorific value of 43.09 MJ/kg, which was fairly close to fossil diesel. For engine analysis, eight different blends containing pyrolysis oil and graphene oxide (GO) nanoparticles were prepared and named PyroD20 (20 % co-pyrolysis oil + 80 % diesel), PyroD40, PyroD50, PyroD20@20 (PyroD20 + 20 ppm GO), PyroD20@40, PyroD20@60, PyroD20@80, and PyroD20@100. After that, an engine test was conducted on the blended fuels to compare them to the baseline diesel fuel (D). At maximum load, the brake thermal efficiency (BTE) for PyroD20 and PyroD20@60 was found to be 37.2 % and 37.8 %, respectively, which was 6.0 % and 7.8 % higher than those of D. The brake-specific fuel consumption (BSFC) for PyroD20 and PyroD20@60 was reduced by up to 22.0 % and 22.7 %, respectively, compared to D. With the use of PyroD20@60, the emissions of carbon monoxide (CO), hydrocarbon (HC), and smoke were reduced by up to 27.0 %, 7.3 %, and 21.2 %, respectively. The produced renewable liquid oil may certainly be used in blends with conventional diesel for IC engine operation.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101905"},"PeriodicalIF":5.6,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cerium-induced modification of acid-base sites in Ni-zeolite catalysts for improved dry reforming of methane","authors":"Abdulrahman bin Jumah ,&nbsp;Marie-Nour Kaydouh ,&nbsp;Ahmed S. Al-Fatesh ,&nbsp;Mohammed O. Bayazed ,&nbsp;Anis H. Fakeeha ,&nbsp;Ahmed A. Ibrahim ,&nbsp;Ahmed E. Abasaeed ,&nbsp;Kirankumar J. Chaudhary ,&nbsp;Nissrine El Hassan","doi":"10.1016/j.joei.2024.101901","DOIUrl":"10.1016/j.joei.2024.101901","url":null,"abstract":"<div><div>Dry reforming of methane (DRM) is a promising route to mitigate greenhouse gas emissions by converting CH₄ and CO₂ into valuable syngas. The present work explores the effect of Ce addition to Ni-based catalysts supported on CBV3020E (ZSM-5) for DRM. The use of Ce as a promoter to tune the acid-base properties of zeolites for DRM is addressed for the first time in detail. While Ce has traditionally been used to improve oxygen storage capacity, this work explores its novel use as a means to enhance surface basicity and promote CO₂ adsorption. The samples were prepared by wet impregnation, characterized using N₂-sorption, X-ray diffraction, H₂-temperature-programmed reduction, temperature-programmed desorption of CO₂ and ammonia, and Fourier transforms infrared spectroscopy, and tested for DRM at 800 °C and 42,000 mL/g.h GHSV. Results show that ZSM-5 zeolite can be beneficial in achieving high metal dispersion. The introduction of 2 wt% Ce to Ni₅/ZSM-5 increases the concentration of strong basic sites, resulting in improved catalytic performance from 37 % CH₄ conversion and 48 % CO₂ conversion for Ni₅/ZSM-5 to 55 % and 65 % on promoted Ni₅Ce₂/ZSM-5, respectively. Thus, the best results are observed on Ni₅Ce₂/ZSM-5 and an optimal H₂/CO ratio of 0.84 is achieved in this case. Upon decreasing GHSV to 15,000 mL/g.h, CH₄ and CO₂ conversions jump to 83 % and 88 %, respectively on Ni₅Ce₂/ZSM-5. Cerium doping produces more desirable strong basic sites and enhances NiO reducibility. This promotes CO₂ adsorption and drives the catalytic reaction towards syngas formation, which eventually results in increased efficiency and improved performance.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101901"},"PeriodicalIF":5.6,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetics, response surface methodology, and regeneration studies of MOF-derived Ni-Ce catalyst for dry reforming of methane","authors":"Ruth D. Alli,&nbsp;Nima Ghafarvand,&nbsp;Mohammad H. Sedghkerdar,&nbsp;Nader Mahinpey","doi":"10.1016/j.joei.2024.101898","DOIUrl":"10.1016/j.joei.2024.101898","url":null,"abstract":"<div><div>The MOF-derived bimetallic Ni-Ce catalyst was studied under three major headings: kinetics, stability and regeneration, and response surface methodology (RSM). The impact of reaction temperature and inlet gas flowrate on H₂/CO, CO₂ and CH₄ conversions in DRM were determined by using RSM and design of experiment (DOE). Optimal values, determined through RSM evaluation, revealed CO₂ and CH₄ conversions and H₂/CO ratio of 99 %, 96 %, and 0.98, respectively, achieved at a reaction temperature of 793 °C and an inlet flowrate of 0.03 mol/h. Furthermore, the kinetic assessment was evaluated using six kinetic models, with reversible Langmuir Hinshelwood and Power law models identified as the best fits. Also, the stability and 2-cycle regeneration analysis at 700 °C, 0.033 mol/h inlet gas flowrate, and a 1:1 CH₄:CO₂ ratio, showed the MOF-derived Ni-Ce catalyst stability and better regeneration was observed under CO₂ compared to air, as air regeneration caused a higher degree of sintering on the catalyst than CO₂ regeneration.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101898"},"PeriodicalIF":5.6,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of ignition and activation energy distribution on the combustion and emission characteristics of diesel-ammonia-natural gas engines","authors":"Qingyang Ma,&nbsp;Jiayong Wang,&nbsp;Shouying Jin,&nbsp;Minshuo Shi","doi":"10.1016/j.joei.2024.101903","DOIUrl":"10.1016/j.joei.2024.101903","url":null,"abstract":"<div><div>To enhance the performance and reduce emissions of ammonia-diesel engines, natural gas is employed as a partial substitute for diesel fuel. This substitution accelerates the combustion rate of ammonia fuel, resulting in improved engine efficiency and decreased emissions. This study investigates how variations in ignition energy (diesel quantity) and activation energy (natural gas quantity) distribution ratios affect engine combustion and emission characteristics through simulation. The study established six groups of operating conditions, with ignition energy ranging from 24 mg to 4 mg. The findings indicate that substituting part of the ignition energy with activation energy enhances the combustion efficiency of ammonia, increases the engine's indicated thermal efficiency and reduces ammonia slip. The optimal operating condition identified in this study is D16/N8, yielding a thermal efficiency of 51.0 %. Compared to the case without natural gas addition, NOx emissions increased, while other pollutants showed significant reductions. In particular, N₂O emissions decreased by 97 %, greenhouse gas (GHG) emissions dropped by 57.2 %, ammonia slip was nearly eliminated, and unburned losses were minimal. The findings of this research offer valuable insights for further enhancing efficiency and reducing emissions in ammonia-diesel dual-fuel engines.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101903"},"PeriodicalIF":5.6,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Turbulent jet development of active pre-chamber fueled with zero-carbon fuel blends","authors":"Xinpeng Guo ,&nbsp;Tie Li ,&nbsp;Run Chen ,&nbsp;Ning Wang ,&nbsp;Shuai Huang ,&nbsp;Xinyi Zhou ,&nbsp;Shiyan Li ,&nbsp;Ping Yi","doi":"10.1016/j.joei.2024.101881","DOIUrl":"10.1016/j.joei.2024.101881","url":null,"abstract":"<div><div>Active pre-chamber turbulent jet ignition has the potential to enhance the combustion of low-reactivity fuels. However, the related fundamental studies on the jet ignition mechanism are inadequate, especially for the independent effects of the zero-carbon fuel blends on the jet development characteristics, isolating the impact of the main chamber combustion. In this work, the effects of the fuel compositions ranged from the 30%H₂+70%NH₃ blend to pure H₂ and also comprised the pure CH₄ for comparison and the initial pressures in the pre-chamber are studied by the two-pass high-speed Schlieren method. The results show that the hot turbulent jet developments present great differences for the pre-chamber charged with various H₂+NH₃ blends across the hydrogen blend ratios varying from 30 % to 100 % in volumetric fraction. Moreover, the evolutions of the hot turbulent jet from the pre-chamber charged with the 50%H₂+50%NH₃ blend and pure CH₄ are similar. As the initial pressure increases, there is a gradual deceleration in the development of the pre-chamber jet, and the turbulent jet development characteristics depend on the pressure ratio rather than the pressure difference across the pre-chamber and main chamber. This study could provide important insights for the development of zero-carbon fuel engines.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101881"},"PeriodicalIF":5.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of the ash melting on heat and mass characteristics and reaction rate during corn stalk pellet gasification","authors":"Yao Xu ,&nbsp;Kechun Wang ,&nbsp;Yejian Qian ,&nbsp;Wangsheng Yang ,&nbsp;Zhiqiang Li ,&nbsp;QingQing Li ,&nbsp;Peiyong Ma","doi":"10.1016/j.joei.2024.101883","DOIUrl":"10.1016/j.joei.2024.101883","url":null,"abstract":"<div><div>In order to investigate the effect of ash melting on the gasification process of biomass pellet, a high-temperature visual gasification system was set up, meanwhile, a biomass melting gasification model for a single pellet was built. Considering that the fusion temperature range of ash is from 1418 K to 1558 K, 1396 K (below 1418 K), 1491 K (between 1418 K and 1558 K), 1591 K and 1677 K (above 1558 K) were chosen as the experimental temperatures. Results show that ash melting could absorb heat, thereby resisting the heat transfer inside pellet. When the gasification temperature is higher than 1558 K, as the larger spherical particles caused by ash melting and coalescing peels off from the pellet surface, the pellet covered by melting ash could be directly exposed to the environment, which is conducive to the heat and mass transfer.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101883"},"PeriodicalIF":5.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic performance comparison of calcium looping processes for post-combustion capture: Influence of CO2 enrichment routes among three heat supply methods","authors":"Song He ,&nbsp;Lifan Gao ,&nbsp;Yawen Zheng ,&nbsp;Junyao Wang ,&nbsp;Dongtai Yang ,&nbsp;Xuelan Zeng","doi":"10.1016/j.joei.2024.101878","DOIUrl":"10.1016/j.joei.2024.101878","url":null,"abstract":"<div><div>Calcium looping process is recognized as a promising option for low-energy consumption post-combustion CO₂ capture. This paper introduced three calcium looping processes with different fossil-fuel-based heat supply methods including air combustion (CaL-AC), oxy-fuel combustion (CaL-Oxy), and chemical looping combustion (CaL-CLC). The sensitivities of key parameters on system performance are investigated, and the detailed energy analysis is conducted to reveal the thermodynamic performance difference. Results show that the changes of the average CaO conversion ratio and the solids make-up ratio bring about drastic variation of energy distributions and the specific primary energy consumption for CO₂ avoidance (SPECCA) in the CaL-AC process. While temperature difference of supplying heat for calcination has a significant influence on the system performance of the CaL-CLC process. Besides, eliminating air preheating leads to the increase of the SPECCA from 3.12 MJ/kg CO₂ to 4.53 MJ/kg CO₂ in the CaL-AC process, which is inferior than that in the CaL-Oxy process. Furthermore, the minimum CO₂ enrichment work of different pathways is examined. The unit minimum enrichment work in the CaL-CLC process is 9.92 kJ/mol CO₂, lower than those in the other two processes due to the avoidance of minimum enrichment work for fuel decarbonization. Through reaction coupling, the Gibbs free energy of the combustion reaction offsets the minimum work required for O₂ release, thereby avoiding the minimum separation work. In post-combustion CO₂ capture processes, avoiding the CO₂ enrichment work requirement during fossil fuel conversion will offer another way to reduce energy consumption.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101878"},"PeriodicalIF":5.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the pyrolysis process of simulated oily sludge: Kinetics, mechanism, product distribution, and S/N elements migration","authors":"Hui Wang ,&nbsp;Jinling Li ,&nbsp;Geyu Wu ,&nbsp;Fang Miao ,&nbsp;Bo Yang ,&nbsp;Shidong Zhu ,&nbsp;Tao Yu","doi":"10.1016/j.joei.2024.101882","DOIUrl":"10.1016/j.joei.2024.101882","url":null,"abstract":"<div><div>Pyrolysis is an important method for energy recovery and harmless treatment of oily sludge, definite reaction mechanism and the transformation of S and N elements is a key to improve the pyrolysis products. In this paper, a simulated oil sludge (SOS) was pyrolyzed at various temperatures of 400–700 °C in a tube furnace focusing on pyrolysis process, kinetic parameters, reaction mechanisms, S and N element migration patterns and product distributions. Kinetic parameters were deducted by FWO, KAS, Friedman and Starink methods, and the activation energy were 186.23–231.20 kJ/mol (Avg. 210.71 kJ/mol), 190.18–233.80 kJ/mol (Avg. 212.02 kJ/mol), 196.93–242.01 kJ/mol (Avg. 209.88 kJ/mol) and 184.82–230.95 kJ/mol (Avg. 218.67 kJ/mol), respectively, showed high similarity. All the pre-exponential factors were higher than 10⁹ s⁻¹, which indicated high reactivity of SOS during pyrolysis, and the pyrolysis process followed the nucleation growth model (A3). Pyrolysis temperatures had a significant influence on products distribution. The maximum yields of pyrolysis tar and gas were observed at 550 °C and 700 °C, respectively. Pyrolysis tar was dominated by aromatics and acids, while pyrolysis gas was mainly composed of H₂ and CH₄. Additionally, high temperatures could facilitate the transfer of more S and N into tar or gas products, and S and N compounds were mainly thiophene-S, sulfoxide-S, pyridine-N and pyrrole-N in char and CS₂, CH₃SH, COS, SO₂, H₂S, NH₃, HCN and NO_x in gas.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101882"},"PeriodicalIF":5.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the effects of aging on the pyrolysis of plastic and the synergistic mechanisms of co-pyrolysis with lignite","authors":"Yang-Yang Xu ,&nbsp;Hai-Xu Zou ,&nbsp;Yuan Gao ,&nbsp;Zheng-Hong Li ,&nbsp;Wen-Han Wei ,&nbsp;Xing Fan ,&nbsp;Xiang Bai ,&nbsp;Yierxiati Dilixiati ,&nbsp;Guligena Pidamaimaiti ,&nbsp;Xian-Yong Wei","doi":"10.1016/j.joei.2024.101886","DOIUrl":"10.1016/j.joei.2024.101886","url":null,"abstract":"<div><div>Co-pyrolysis of waste plastic with low-rank coal explored how photoaging impacts the pyrolysis of plastics and delves into the synergistic mechanisms involved in co-pyrolysis. The results of elemental analysis, X-ray powder diffraction and Fourier transform infrared spectroscopy showed that photoaging primarily involves oxidizing and breaking the aliphatic chains in polyethylene (PE), as well as generating oxygen-containing functional groups like hydroxyl (-OH), carbonyl (-C=O), and ether (-C-O), thereby reducing the crystallinity of PE. The results of individual plastic pyrolysis showed that photoaging is beneficial to the generation of gas and tar. Pyrolysis tar of PE samples contains significant amounts of alcohols, and olefins and alkynes (O&amp;As). The results of co-pyrolysis indicated that photoaging can enhance the yields of gas and oil from the co-pyrolysis between PE and Naomaohu (NMH) coal. Co-pyrolysis effectively reduced the relative content of O&amp;As in the tar from the pyrolysis of PE samples alone by 8.0%–29.0 %. The synergistic mechanism of co-pyrolysis between aged PE and NMH involved supplying a significant quantity of hydrogen and hydroxyl radicals by NMH, which react with alkyl radicals generated from PE pyrolysis, leading to the production of additional alkanes and alcohols. These findings offered new insights for a deeper understanding of the co-pyrolysis behaviors between waste plastic and lignite.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"118 ","pages":"Article 101886"},"PeriodicalIF":5.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}