Energy generation by air gasification of two industrial plastic wastes in a pilot scale fluidized bed reactor

Arena, Umberto; Gregorio, F. Di

doi:10.1016/j.energy.2014.01.084

Cited by 90 publications

(56 citation statements)

References 23 publications

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“…The C 2 O 3 , chromite, and calcite in the COPR minerals were all good catalysts for the dehydrogenation and cracking of the macromolecular organics. 37 Thus, in the ideal condition, the organic compounds could finally be converted to CO 2 and H 2 O by Cr(VI). To better understand the stoichiometric ratio of reducant/oxidant, we proposed MCRA/C.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior

Zhang

et al. 2016

Environ. Sci. Technol.

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ABSTRACT:The pyrolysis treatment with biomass is a promising technology for the remediation of chromite-oreprocessing residue (COPR). However, the mechanism of this process is still unclear. In this study, the behavior of pyrolysis reduction of Cr(VI) by cellulose, the main component of biomass, was elucidated. The results showed that the volatile fraction (VF) of cellulose, ie. gas and tar, was responsible for Cr(VI) reduction. All organic compounds, as well as CO and H 2 in VF, potentially reduced Cr(VI). X-ray absorption nearedge structure (XANES) spectroscopy and extended X-ray absorption fine-structure (EXAFS) spectroscopy confirmed the reduction of Cr(VI) to Cr(III) and the formation of amorphous Cr 2 O 3 . The remnant Cr(VI) content in COPR can be reduced below the detection limit (2 mg/kg) by the reduction of COPR particle and extension of reaction time between VF and COPR. This study provided a deep insight on the co-pyrolysis of cellulose with Cr(VI) in COPR and an ideal approach by which to characterize and optimize the pyrolysis treatment for COPR by other organics.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior

Zhang

et al. 2016

Environ. Sci. Technol.

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“…These phenomena could be due to the contribution of the reforming reactions which are favoured at high temperature, becoming predominant at temperatures higher than 800°C [6,20,[43][44][45][46][47][48]. The final gas composition is a function of the prevalent reactions that take place simultaneously by enhancing the hydrogen and syngas yield associated with the conversion of tar into syngas.…”

Section: Effect Of Temperature On Gases Composition and Products Yieldmentioning

confidence: 99%

H 2 -rich syngas production through mixed residual biomass and HDPE waste via integrated catalytic gasification and tar cracking plus bio-char upgrading

Esfahani

Osmieri

Specchia

et al. 2017

Chemical Engineering Journal

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“…Only few publications presented research on electrical energy recovery. They were focused on the gasification process [41,42] and the production of syngas, which was subsequently burned in gas engines producing electrical energy.…”

Section: S a T U R A T E D S T E A M F L U X [ K G / H ] P E R I O D mentioning

confidence: 99%

Production of waste energy and heat in hospital facilities

Bujak¹

2015

Energy

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Energy generation by air gasification of two industrial plastic wastes in a pilot scale fluidized bed reactor

Cited by 90 publications

References 23 publications

Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior

Pyrolysis Treatment of Chromite Ore Processing Residue by Biomass: Cellulose Pyrolysis and Cr(VI) Reduction Behavior

H 2 -rich syngas production through mixed residual biomass and HDPE waste via integrated catalytic gasification and tar cracking plus bio-char upgrading

Production of waste energy and heat in hospital facilities

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