Catalytic pyrolysis of high density polyethylene in a conical spouted bed reactor

Elordi, Gorka; Olazar, Martı́n; Aguado, Roberto; López, Gartzen; Arabiourrutia, Miriam; Bilbao, Javier

doi:10.1016/j.jaap.2006.11.010

Cited by 89 publications

(44 citation statements)

References 42 publications

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“…The acidity of their active sites and its crystalline microporous structure (textural properties) favor hydrogen transfer reactions and thereby make them suitable for obtaining high conversions of gas at relatively low temperatures, between 350 and 500 °C [11,18,22,[41][42][43][44] . That is, these features allow milder operating conditions (lower temperatures and reaction times) than a thermal pyrolysis [4,25,30,45] . Differences in the catalytic activity of these solids are related to their acidic properties, especially the strength and number of acidic sites.…”

Section: Catalytic Pyrolysismentioning

confidence: 99%

Thermal and catalytic pyrolysis of plastic waste

2016

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Section: Catalytic Pyrolysismentioning

confidence: 99%

Thermal and catalytic pyrolysis of plastic waste

2016

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“…In previous papers, the good performance of the CSBR has been proven for the selective production of waxes [32], fuel-like hydrocarbons [33] and monomers [34]. This good performance is a consequence of the solid flow pattern, high heat transfer between phases and the smaller defluidization problems when sticky solids are handled.…”

Section: Introductionmentioning

confidence: 99%

Catalytic pyrolysis of HDPE in continuous mode over zeolite catalysts in a conical spouted bed reactor

Elordi

Olazar

López

et al. 2009

Journal of Analytical and Applied Pyrolysis

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217

107

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“…The conical spouted bed reactor provides an appropriate contact to avoid this problem, [20] and pyrolysis occurs according to the following stages, as shown in Figure 1 [21]: (i) melting of plastic, which coats the sand particles; (ii) cyclic movement of the sand particles coated by plastic during their devolatilization.…”

Section: Conical Spouted Bed Reactormentioning

confidence: 99%

Pyrolysis of Polyolefins in a Conical Spouted Bed Reactor: A Way to Obtain Valuable Products

Arabiourrutia¹,

Elordi²,

Olazar³

et al. 2017

Pyrolysis

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The amount of waste plastic increases every single year, which causes a critical environmental issue. Polyolefins (mainly high-and low-density polyethylene and polypropylene) are the most common types of plastics, accounting for 60 wt% of the plastic waste. Pyrolysis, the thermal degradation in an inert atmosphere, is considered to be one of the most appealing technologies for the recycling of plastic materials. The conical spouted bed reactor is suitable for the pyrolysis of plastic waste due to its ability to avoid agglomeration problems that may be caused by the melted plastic. The pyrolysis process may be carried out at different temperatures and with or without the presence of catalysts in the reaction environment in order to streamline product distribution. The resulting products are hydrocarbons: non-condensable gases (C 1 -C 4 ), gasoline fraction, diesel fraction, and waxes. These fractions might be used directly as feed streams for refinery units or as pools to be mixed with other streams from refineries.

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Catalytic pyrolysis of high density polyethylene in a conical spouted bed reactor

Cited by 89 publications

References 42 publications

Thermal and catalytic pyrolysis of plastic waste

Thermal and catalytic pyrolysis of plastic waste

Catalytic pyrolysis of HDPE in continuous mode over zeolite catalysts in a conical spouted bed reactor

Pyrolysis of Polyolefins in a Conical Spouted Bed Reactor: A Way to Obtain Valuable Products

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