Catalytic Copyrolysis of Cellulose and Thermoplastics over HZSM-5 and HY

Kim, Beom-Sik; Kim, Young‐Min; Lee, Hyung Won; Jae, Jungho; Kim, Do Heui; Jung, Sang‐Chul; Watanabe, Chuichi; Park, Young-Kwon

doi:10.1021/acssuschemeng.5b01381

Cited by 121 publications

(56 citation statements)

References 50 publications

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“…On the other hand, peaks for oxygen containing compounds were not detected, which indicates that the efficient catalytic conversion of oxygen-containing pyrolyzates of CoOak to light hydrocarbons and aromatic hydrocarbons can be achieved using HBeta (25). The hydrocarbon pool mechanism is known as the major reaction pathways for the formation of aromatic hydrocarbons from biomass over acid zeolite catalysts [31]. Typical pyrolyzates of woody biomass, consisting of acids, furans, levoglucosan, aldehydes, and phenols, can be converted to light hydrocarbons, mainly olefins, via a catalytic dehydration, decarboxylation, and decarbonylation reaction over the catalyst.…”

Section: Tmr-gc/ms/fidmentioning

confidence: 99%

Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta

Park

Lee

Watanabe³

et al. 2018

Catalysts

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The catalytic fast copyrolysis (CFCP) of cork oak (CoOak) and waste plastic films (WPFs) over HBeta(25) (SiO2/Al2O3: 25) was investigated using a thermogravimetric (TG) analyzer and a tandem micro reactor-gas chromatography/mass spectrometry (TMR-GC/MS) to determine the effectiveness of WPFs as the hydrogen donating cofeeding feedstock on the CFCP of biomass. By applying CFCP, the maximum decomposition temperatures of CoOak (373.4 °C) and WPFs (487.9 °C) were reduced to 364.5 °C for CoOak and 436.5 °C for WPFs due to the effective interaction between the pyrolysis intermediates of CoOak and WPFs over HBeta(25), which has strong acidity and an appropriate pore size. The experimental yields of aromatic hydrocarbons on the CFCP of CoOak and WPFs were higher than their calculated yields concluded from the yields obtained from the individual catalytic fast pyrolysis (CFP) of CoOak and WPFs. The coke amount produced from the CFP of CoOak and WPFs over HBeta(25) were also decreased by applying CFCP.

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Section: Tmr-gc/ms/fidmentioning

confidence: 99%

Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta

Park

Lee

Watanabe³

et al. 2018

Catalysts

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“…Co-pyrolysis is a promising technique to simultaneously process biomass and plastic and produce high-value added products such as bio-oil and chemicals [7,8]. It is reported that the bio-oil directly derived from biomass generally presented a nature of high oxygen content, acidity, instability, viscosity and corrosion which highly restricted its applications [1,9].…”

Section: Introductionmentioning

confidence: 99%

“…On the contrary, using a catalyst with pore size smaller than raw material (CL with a kinetic diameter of 8.6 Å) resulted in the reactions mainly occurred at external surface of the catalysts which greatly restricted the catalytic reaction [15]. Up to date, the catalysts employed are those with unique physicochemical characteristics mainly concerning zeolites and metal oxides [7,[16][17][18]. For example, LOSA-1, spent FCC and γ-Al2O3 were employed as catalysts during a catalytic co-pyrolysis of PE and blackliquor lignin for the production of petrochemicals and these catalysts were consequently proven to be effective in the catalytic conversion [17].…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior and kinetics of co-pyrolysis of cellulose and polyethylene with the addition of transition metals

Wang

Shen

et al. 2018

Energy Conversion and Management

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The influence of the addition of transition metals involving nickel (Ni), cobalt (Co), iron (Fe) and manganese (Mn) on the thermal behavior and kinetic of copyrolysis of cellulose (CL) together with polyethylene (PE) was investigated according to thermogravimetric analysis (TGA). It is found that the involvement of transition metals acting as catalysts could promote the decomposition of individual component (CL and PE) in the mixture. The initial decomposition temperature of CL and PE in the mixture is reduced by 91-136 and 8-15 , respectively, after the addition of transition metals in comparison with that of the mixture of CL and PE. Meanwhile, transition

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“…Therefore, some CFP intermediates cannot be vaporized and fixed to the catalyst as thermal coke and catalyst coke, as shown in the DTG peak height of pinecones at temperatures lower than 400 • C. If a considerable amount of coke is deposited on the catalyst, the coke is also stabilized at higher temperatures with the elimination of oxygen and the formation of more thermally stable polyaromatic coke [21]. The CFP of pinecone over HY catalysts can increase the amount of volatile emission at temperatures higher than 400 • C. Compared to the catalytic DTG curve of pinecones over HY(60), that over HY (30) showed a lower DTG peak height at temperatures less than 400 • C and higher at temperatures greater than 400 • C. This suggests that HY(30) produces a larger amount of coke at temperatures lower than 400 • C and emits a larger amount of volatiles during the coke stabilization at temperatures higher than 400 • C [22].…”

Section: Introductionmentioning

confidence: 90%

In-Situ Catalytic Fast Pyrolysis of Pinecone over HY Catalysts

et al. 2019

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The in-situ catalytic fast pyrolysis of pinecone over HY catalysts, HY(30; SiO2/Al2O3), HY(60), and 1% Ni/HY(30), was studied by TGA and Py-GC/MS. Thermal and catalytic TGA indicated that the main decomposition temperature region of pinecone, from 200 to 400 °C, was not changed using HY catalysts. On the other hand, the DTG peak heights were differentiated by the additional use of HY catalysts. Py-GC/MS analysis showed that the efficient conversion of phenols and other oxygenates formed from the pyrolysis of pinecone to aromatic hydrocarbons could be achieved using HY catalysts. Of the HY catalysts assessed, HY(30), showed higher efficiency in the production of aromatic hydrocarbons than HY(60) because of its higher acidity. The aromatic hydrocarbon production was increased further by increasing the pyrolysis temperature from 500 to 600 °C and increasing the amount of catalyst due to the enhanced cracking ability and overall acidity. The use of 1% Ni/HY(30) also increased the amount of monoaromatic hydrocarbons compared to the use of HY(30) due to the additional role of Ni in enhancing the deoxygenation and aromatization of reaction intermediates.

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Catalytic Copyrolysis of Cellulose and Thermoplastics over HZSM-5 and HY

Abstract: Contents (11 pages and 7 tables)Table S1. GC/MS peak areas of evolved compounds of reaction region during thermal and catalytic pyrolysis of cellulose.

Cited by 121 publications

References 50 publications

Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta

Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta

Thermal behavior and kinetics of co-pyrolysis of cellulose and polyethylene with the addition of transition metals

In-Situ Catalytic Fast Pyrolysis of Pinecone over HY Catalysts

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