In-situ catalytic co-pyrolysis of yellow poplar and high-density polyethylene over mesoporous catalysts

Rezaei, Pouya Sirous; Oh, Daejun; Hong, Yeojin; Kim, Young‐Min; Jae, Jungho; Jung, Sang‐Chul; Jeon, Jong‐Ki; Park, Young-Kwon

doi:10.1016/j.enconman.2017.08.073

Cited by 50 publications

(11 citation statements)

References 37 publications

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“…As shown in Fig. Sharypov et al, 2002;Rezaei et al, 2017;Parparita et al, 2014;Park et al, 2018a;Park et al, 2018b;Kim et al, 2017b;Jeong et al, 2019;Xue et al, 2017). The softening of lldPE occurs at around 573 K, followed a plastic state which inhibits the release of volatiles from cellulose by the formation of a coating layer on the surface of cellulose.…”

Section: Experimental Results From Tga Of Lldpe Cellulose and Their Co-feedmentioning

confidence: 97%

“…Then the hydrogen transfer reactions between the polymer chain and biomass radicals stabilized the primary products formed from biomass thermal degradation (Sharypov et al, 2002;Ryu et al, 2020). In the presence of catalyst, the major transformation involved Diel-Alder reaction between the reaction intermediates such as furans and olefins into aromatic hydrocarbons (Ryu et al, 2020;Rezaei et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Intensification of co-pyrolysis of plastic with biomass via pretreatment

Muhammad

Manos

2021

Process Safety and Environmental Protection

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Section: Experimental Results From Tga Of Lldpe Cellulose and Their Co-feedmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Intensification of co-pyrolysis of plastic with biomass via pretreatment

Muhammad

Manos

2021

Process Safety and Environmental Protection

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“…Similarly, studies focusing on the catalytic co-pyrolysis of biomass model components (cellulose, hemicellulose or lignin) with waste tyres using SBA-15, MCM-41 and HZSM-5 [22] catalysts were conducted in a lab-scale reactor, showing an increase in the aromatic fraction yield. In line with this, Rezaei et al [33] studied hierarchical mesoporous Y and Al-SBA-15 for the catalytic co-pyrolysis of yellow poplar and PE. The authors revealed a high selectivity to aromatic hydrocarbons production attributed to the effective pore structure, large channels, and high acidity of the catalysts as well as the high H 2 evolved from PE pyrolysis.…”

Section: Introductionmentioning

confidence: 84%

Catalytic co-pyrolysis of grape seeds and waste tyres for the production of drop-in biofuels

Sanahuja‐Parejo

Veses

Navarro

et al. 2018

Energy Conversion and Management

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Catalytic co-pyrolysis of grape seeds and waste tyres was performed in a fixed-bed reactor using calcined calcite as a catalyst. The organic phase obtained was analysed for its further application as a potential and stable drop-in fuel. Remarkable positive effects were achieved after the joint incorporation of both waste tyres and calcined calcite to grape seeds in the process. More specifically, the addition of considerable amounts of waste tyres (between 20 and 40 wt%) with a constant ratio of feedstock to calcined calcite of 1 were considered the optimal experimental conditions to promote positive synergistic effects on bio-oil yields and its characteristics as a fuel. Thus, when the proportion of waste tyres in the feed reached 40 wt%, the organic phase yield was considerable improved, reaching up values higher than 73 wt%, significantly greater than those obtained from conventional pyrolysis (61 wt%). Moreover, oxygen content was reduced to 4.2 wt%, minimizing any problems related to corrosivity and instability.HHV was enlarged from 15.3 up to 27.3 MJ/kg, significantly increasing the value of the resulting bio-oil. pH values and specially total acid number were also improved reaching values down to 1 mg KOH/g bio-oil in all cases. Additionally, a more valuable chemical composition was achieved since the production of aromatic and cyclic hydrocarbons was maximized, while a significant reduction in phenolic compounds was achieved. Moreover, bio-oil sulphur content was drastically reduced in comparison with the pyrolysis of waste tyres by itself from 0.6 down to 0.2 wt%. The role of calcined calcite was directly related to the promotion of dehydration reactions of acids and phenols in order to generate hydrocarbons. On the other hand, radical interactions between the biomass and waste tyres pyrolysis products played a fundamental role in the production of more valuable compounds. Finally, the CO 2 capture effect produced a more environmentally friendly gas while maintaining its calorific value.

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“…Zhang et al [16] reported that J o u r n a l P r e -p r o o f elevating the H/C effective ratio in feedstocks promoted the formation of olefins and aromatics in the catalytic fast pyrolysis of biomass-derived samples, and a high H/C effective ratio of feedstocks also boosted the stability of HZSM-5 by mitigating coke accumulation. Therefore, hydrogen-rich waste plastic polymers, including polypropylene (PP) and polyethylene (PE), were extensively used as hydrogen donors in the co-pyrolysis of biomass to enhance the production of aromatic hydrocarbons [17][18][19]. For instance, Park et al [20] conducted the co-pyrolysis of cellulose and LLDPE (linear low-density polyethylene, LLDPE) over MgO-impregnated catalysts, and it was observed that LLDPE co-fed with cellulose produced more aromatic hydrocarbons.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%