Light olefin production from catalytic pyrolysis of waste tires using nano-HZSM-5/γ-Al 2 O 3 catalysts

He, Zhuangzhang; Jiao, Qingze; Fang, Zhuqing; Li, Taotao; Feng, Caihong; Li, Hansheng; Zhao, Yun

doi:10.1016/j.jaap.2017.12.002

Cited by 28 publications

(6 citation statements)

References 43 publications

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“…Ahoor and Zandi-Atashbar [142] analysed the influence of using in situ a MgCl2 catalyst in a fixed bed reactor (10 g of sample) operating in batch regime with a heating rate of 20 ºC min -1 . He et al approached the production of light olefins in a fixed bed batch reactor (1 g of tyre sample) using γ-Al2O3 and nano-HZSM-5 as in situ catalysts [143].…”

Section: Fixed Bed Reactorsmentioning

confidence: 99%

“…Although attention has been mainly devoted to the improvement of TPO characteristics, there are studies focusing on the upgrading of the properties of the gaseous stream, as are those dealing with the increase in light olefin formation using different types of catalysts [193,208,242]. As is well known, olefins, especially light olefins, are essential organic chemical raw materials.…”

Section: Gaseous Fraction Productsmentioning

confidence: 99%

“…Similarly, He et al [242] combined a nano-HZSM-5 of short micropore channels with a mesoporous γ-Al2O3 to obtain a nano-HZSM-5/γ-Al2O3 composite catalyst in order to increase light olefin production. They concluded this catalyst selectively produced 29.9% olefins, especially C4 olefins.…”

Section: Gaseous Fraction Productsmentioning

confidence: 99%

See 2 more Smart Citations

Waste tyre valorization by catalytic pyrolysis – A review

Arabiourrutia

López

Artetxe

et al. 2020

Renewable and Sustainable Energy Reviews

207

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Section: Fixed Bed Reactorsmentioning

confidence: 99%

Section: Gaseous Fraction Productsmentioning

confidence: 99%

See 1 more Smart Citation

Waste tyre valorization by catalytic pyrolysis – A review

Arabiourrutia

López

Artetxe

et al. 2020

Renewable and Sustainable Energy Reviews

207

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“…He et al found that the combination of γ-Al 2 O 3 and HZSM-5 into one catalyst leads to an increased selectivity toward light olefins for the pyrolysis of waste tires [51]. Due to their interesting findings, and the fact that HZSM-5 and γ-Al 2 O 3 are two widely used catalytically active materials for the dehydration of alcohols, the objective of this work is to develop a hybrid catalyst that is a combination of HZSM-5 and γ-Al 2 O 3 .…”

Section: Methodsmentioning

confidence: 99%

Renewable Butene Production through Dehydration Reactions over Nano-HZSM-5/γ-Al2O3 Hybrid Catalysts

et al. 2020

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The development of new, improved zeolitic materials is of prime importance to progress heterogeneous catalysis and adsorption technologies. The zeolite HZSM-5 and metal oxide γ-Al2O3 are key materials for processing bio-alcohols, but both have some limitations, i.e., HZSM-5 has a high activity but low catalytic stability, and vice versa for γ-Al2O3. To combine their advantages and suppress their disadvantages, this study reports the synthesis, characterization, and catalytic results of a hybrid nano-HZSM-5/γ-Al2O3 catalyst for the dehydration of n-butanol to butenes. The hybrid catalyst is prepared by the in-situ hydrothermal synthesis of nano-HZSM-5 onto γ-Al2O3. This catalyst combines mesoporosity, related to the γ-Al2O3 support, and microporosity due to the nano-HZSM-5 crystals dispersed on the γ-Al2O3. HZSM-5 and γ-Al2O3 being in one hybrid catalyst leads to a different acid strength distribution and outperforms both single materials as it shows increased activity (compared to γ-Al2O3) and a high selectivity to olefins, even at low conversion and a higher stability (compared to HZSM-5). The hybrid catalyst also outperforms a physical mixture of nano-HZSM-5 and γ-Al2O3, indicating a truly synergistic effect in the hybrid catalyst.

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“…[2] A large amount of waste tires has become a serious environmental problem that needs to be solved. [3,4] Thermal pyrolysis is a main method to recycle waste tire energy and raw materials, for it can convert waste tries, at a typical pyrolysis temperature of 500 °C, into oil, gas, and char products, in addition to steel. [5,6,7] Carbon black is a main product of pyrolysis of waste tires, accounting for 30-40% of the total pyrolysis products.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pyrolysis Carbon Black from Waste Tire on the Mechanical Properties of SSBR/BR Blend

Zhang

Wang

Jiang

2022

Macro Materials & Eng

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Pyrolysis carbon black (PCB) is a main product during the pyrolysis of waste tires. Using PCB to partially replace carbon black has drawn great attention. Herein, PCB is used to replace commercial carbon black N234 in a solution‐polymerized styrene‐butadiene rubber (SSBR)/butadiene rubber (BR)/silica compound used for tire treads. The influence of liquid polyisoprene (LIR) on the SSBR/BR/silica compound is studied. The scorch time of the compound is prolonged and the curing rate increases when N234 is partially replaced by PCB, and the processing performance of the compound is improved after the addition of LIR. As N234 is partially replaced by PCB, the addition of LIR can increase the tensile strength and elongation at break of SSBR/BR/silica vulcanizates, and improve their ageing resistance. When 50% N234 is replaced by PCB in the presence of LIR, the rolling resistance and wet grip of SSBR/BR/silica vulcanizate are improved, while the abrasion resistance slightly decreased. In the presence of liquid polyisoprene, PCB can be successfully used to partially replace common carbon black in tire rubber compounds without compromising properties.

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Light olefin production from catalytic pyrolysis of waste tires using nano-HZSM-5/γ-Al 2 O 3 catalysts

Cited by 28 publications

References 43 publications

Waste tyre valorization by catalytic pyrolysis – A review

Waste tyre valorization by catalytic pyrolysis – A review

Renewable Butene Production through Dehydration Reactions over Nano-HZSM-5/γ-Al2O3 Hybrid Catalysts

Effect of Pyrolysis Carbon Black from Waste Tire on the Mechanical Properties of SSBR/BR Blend

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