Hydrogen-rich gas as a product of two-stage co-gasification of lignite/waste plastics mixtures

Straka, Pavel; Bičáková, Olga

doi:10.1016/j.ijhydene.2014.05.054

Cited by 42 publications

(9 citation statements)

References 24 publications

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“…Currently co-pyrolysis of single or mixed plastics with fossil fuels (coal and petroleum) are being investigated in order to recover chemicals to partially replace fossil fuels in wellestablished industrial conversion processes and to contribute to the protection of the environment by reducing the volume of waste [1][2][3]. Among the different routes based on copyrolysis, an environmental friendly alternative is the co-processing of coking coals with plastics from municipal wastes [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Coal and plastic waste co-pyrolysis by thermal analysis–mass spectrometry

Melendi-Espina

Álvarez

Díez

et al. 2015

Fuel Processing Technology

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Simultaneous thermogravimetry-mass spectrometry studies of a pyrolytic decomposition of mixtures of different plastic wastes/coking coal were carried out. The investigation was performed at temperatures up to 1000ºC in a helium atmosphere under dynamic conditions at a heating rate of 25 ºC/min. Five thermoplastics, commonly found in municipal wastes: low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET) and a plastic mixture rich in polyolefins were selected. Thermogravimetric parameters, together with different characteristic ion fragments from selected libraries of evolving products during the co-pyrolysis process were monitored, such as hydrogen, CO2 and aliphatic and aromatic hydrocarbons. Based on the results obtained, a synergistic effect between coal and individual residues has been found. The maximum interaction occurs at temperatures close to the maximum release of volatile matter of the plastic waste. There is a delay in the decomposition of the plastics that together with the changes in the composition of the volatile matter evolved, promote interactions between the components and have negative effects on coal fluidity. The polyolefinic wastes (HDPE, LDPE and PP) degrade at temperatures close to that of maximum coal degradation, modifying the thermal behaviour of the coal to a lesser degree. However, PS and PET, that release their volatile matter mostly in the early stage of the coal decomposition, show a more pronounced influence on the thermal behaviour. Moreover, the kinetic data demonstrates that the addition of polyolefins increases the energy required to initiate pyrolysis compared to PS and PET. All of these results agree with the fact that polyolefins reduce coal fluidity in a more moderate way than PET and PS.

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Section: Introductionmentioning

confidence: 99%

Coal and plastic waste co-pyrolysis by thermal analysis–mass spectrometry

Melendi-Espina

Álvarez

Díez

et al. 2015

Fuel Processing Technology

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“…As plastics can be disposed of in diverse shapes, sizes and from a multitude of origins (including microplastics), the comprehensive character that gasification has to offer confirms this technique as a valuable conversion method for these residues, as reported by several authors (Al-Salem, Lettieri, and Baeyens 2009;Arena, Zaccariello, and Mastellone 2009;Aznar et al 2006;Baloch et al 2016;Kim et al 2011), some even suggesting a possible replacement of fossil fuels (Straka and Bičáková 2014). Apart from the assets achieved from plastics gasification, improved results were obtained for mixtures of plastics with other residues, due to their valuable energetic composition that…”

Section: Microplastics Gasificationmentioning

confidence: 72%

Rescuing the Environment: Turning (Micro)plastics into Energy Through Gasification

Ramos¹,

Rouboa

2018

UPjeng

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Plastics are a common residue of our activities and, when incorrectly disposed, high quantities of this type of products end up in the environment, namely through landfilling and dumping into the aquatic compartments. Therefore, water streams and basins are contaminated threatening wildlife, which ultimately can entail human toxicity by means of the food-chain effect. One of the major concerns relies on microplastics which, due to its size and nature, constitute a more difficult to handle residue.This paper presents an endeavour to control, reduce or even mitigate the presence of plastic debris in the environment, with the benefit of converting them into energy or other valuable commodities for the actual society. Gasification can be seen as one of the most effective techniques for this purpose, featuring a more environmental friendly scheme for treating this kind of residues, avoiding their overspread throughout Nature, as well as complying with environmental policies.

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“…Selanjutnya sampah dipisahkan sesuai dengan jenisnya yaitu organik dan anorganik untuk upaya penggunaan kembali (reuse) dan daur ulang (recycle). Sampah organik yang bersifat bioderadable dimanfaatkan sebagai bahan baku pembuatan kompos (Guan dkk., 2009;Straka dan khususnya plastik yang bersifat nondegradable (Santoso, 2010;Rizka dan Juliastuti, 2013;Obeid dkk., 2014) umumnya dimanfaatkan sebagai bahan baku pembuatan kerajinan.…”

Section: Pendahuluanunclassified

Kajian Potensi Pemanfaatan Sampah Plastik Menjadi Bahan Bakar Cair

Sari

2018

alard

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The abundance of plastic waste is caused by inadequate management. The element of plastic waste consists of crude oil and natural gas that can be reuse as fuel. The conversion technique which can be applied is thermal cracking as known as pyrolysis that combined with a catalyst. The addition of a catalyst can accelerate the process of crude oil formation so that the volume increases and makes the quality better. The pyrolysis can convert waste into oil up to 81% that are consist of paraffin, isopropyl, olefin, naphthal and aromatics so feasible to use as fuel. Keywords: catalyst, crude oil, fuel, plastic waste, pyrolysis.

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Hydrogen-rich gas as a product of two-stage co-gasification of lignite/waste plastics mixtures

Cited by 42 publications

References 24 publications

Coal and plastic waste co-pyrolysis by thermal analysis–mass spectrometry

Coal and plastic waste co-pyrolysis by thermal analysis–mass spectrometry

Rescuing the Environment: Turning (Micro)plastics into Energy Through Gasification

Kajian Potensi Pemanfaatan Sampah Plastik Menjadi Bahan Bakar Cair

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