Selective conversion of polystyrene into renewable chemical feedstock under mild conditions

Nouf M. Al Jabri; Zhiping Lai; Kuo-Wei Huang

doi:10.1016/j.wasman.2018.07.005

Selective conversion of polystyrene into renewable chemical feedstock under mild conditions

Nouf M. Al Jabri, Zhiping Lai, Kuo-Wei Huang

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The aim of this work is to prepare catalysts for energy efficient conversion of polystyrene (PS) and its waste into valuable products with high conversion at 250 °C. The FeCo/Alumina bimetallic catalyst was synthesized by aqueous impregnation and structurally determined using scanning-transmission electron microscopy, temperature programmed desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. Successfully, we have achieved up to 91% liquid yield with selectivities for styrene monomer (SM) up to 45 wt% and ethylbenzene (EB) up to 55 wt%, depending on the exposure time at 250 °C by FeCo/Alumina which is comparable to those of reactions at high temperatures (≥350 °C). Further increase of catalyst loadings from 200 to 400 mg also led to the decrease in styrene yield and increase in ethylbenzene yield. The analysis of the resulting clear liquid by gas chromatography/mass spectrometry (GC/MS) indicates the generation of products in the gasoline range.

Original language	English (US)
Pages (from-to)	871-879
Number of pages	9
Journal	Waste Management
Volume	78
DOIs	https://doi.org/10.1016/j.wasman.2018.07.005
State	Published - Aug 2018

Keywords

Catalytic degradation
Energy-efficient
Low-temperature
Polystyrene

ASJC Scopus subject areas

Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.wasman.2018.07.005

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title = "Selective conversion of polystyrene into renewable chemical feedstock under mild conditions",

abstract = "The aim of this work is to prepare catalysts for energy efficient conversion of polystyrene (PS) and its waste into valuable products with high conversion at 250 °C. The FeCo/Alumina bimetallic catalyst was synthesized by aqueous impregnation and structurally determined using scanning-transmission electron microscopy, temperature programmed desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. Successfully, we have achieved up to 91% liquid yield with selectivities for styrene monomer (SM) up to 45 wt% and ethylbenzene (EB) up to 55 wt%, depending on the exposure time at 250 °C by FeCo/Alumina which is comparable to those of reactions at high temperatures (≥350 °C). Further increase of catalyst loadings from 200 to 400 mg also led to the decrease in styrene yield and increase in ethylbenzene yield. The analysis of the resulting clear liquid by gas chromatography/mass spectrometry (GC/MS) indicates the generation of products in the gasoline range.",

keywords = "Catalytic degradation, Energy-efficient, Low-temperature, Polystyrene",

author = "{Al Jabri}, {Nouf M.} and Zhiping Lai and Kuo-Wei Huang",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

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doi = "10.1016/j.wasman.2018.07.005",

language = "English (US)",

volume = "78",

pages = "871--879",

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T1 - Selective conversion of polystyrene into renewable chemical feedstock under mild conditions

AU - Al Jabri, Nouf M.

AU - Lai, Zhiping

AU - Huang, Kuo-Wei

PY - 2018/8

Y1 - 2018/8

N2 - The aim of this work is to prepare catalysts for energy efficient conversion of polystyrene (PS) and its waste into valuable products with high conversion at 250 °C. The FeCo/Alumina bimetallic catalyst was synthesized by aqueous impregnation and structurally determined using scanning-transmission electron microscopy, temperature programmed desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. Successfully, we have achieved up to 91% liquid yield with selectivities for styrene monomer (SM) up to 45 wt% and ethylbenzene (EB) up to 55 wt%, depending on the exposure time at 250 °C by FeCo/Alumina which is comparable to those of reactions at high temperatures (≥350 °C). Further increase of catalyst loadings from 200 to 400 mg also led to the decrease in styrene yield and increase in ethylbenzene yield. The analysis of the resulting clear liquid by gas chromatography/mass spectrometry (GC/MS) indicates the generation of products in the gasoline range.

AB - The aim of this work is to prepare catalysts for energy efficient conversion of polystyrene (PS) and its waste into valuable products with high conversion at 250 °C. The FeCo/Alumina bimetallic catalyst was synthesized by aqueous impregnation and structurally determined using scanning-transmission electron microscopy, temperature programmed desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. Successfully, we have achieved up to 91% liquid yield with selectivities for styrene monomer (SM) up to 45 wt% and ethylbenzene (EB) up to 55 wt%, depending on the exposure time at 250 °C by FeCo/Alumina which is comparable to those of reactions at high temperatures (≥350 °C). Further increase of catalyst loadings from 200 to 400 mg also led to the decrease in styrene yield and increase in ethylbenzene yield. The analysis of the resulting clear liquid by gas chromatography/mass spectrometry (GC/MS) indicates the generation of products in the gasoline range.

KW - Catalytic degradation

KW - Energy-efficient

KW - Low-temperature

KW - Polystyrene

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U2 - 10.1016/j.wasman.2018.07.005

DO - 10.1016/j.wasman.2018.07.005

M3 - Article

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SN - 0956-053X

VL - 78

SP - 871

EP - 879

JO - Waste Management

JF - Waste Management

ER -

Selective conversion of polystyrene into renewable chemical feedstock under mild conditions

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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