Jet fuel and hydrogen produced from waste plastics catalytic pyrolysis with activated carbon and MgO

Huo, Erguang; Lei, Hanwu; Liu, Chao; Zhang, Yayun; Xin, Liyong; Zhao, Yunfeng; Qian, Moriko; Zhang, Qingfa; Lin, Xiaona; Wang, Chenxi; Mateo, Wendy; Ruan, Roger

doi:10.1016/j.scitotenv.2020.138411

Cited by 98 publications

(61 citation statements)

References 38 publications

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“…Following this, the same group combined the biomass-derived activated carbon and MgO as the catalysts for the pyrolysis, and the synergistic effect further favored H 2 generation (enhanced to � 95 vol % in gas phase). [67] Biomass resources include various renewable and abundant materials such as cellulose, chitin, and others that can be utilized for chemical or fuel production. [68][69][70][71][72][73][74][75][76][77][78][79] The co-pyrolysis of plastic and biomass furnishes a beneficial strategy to possibly improve the quality of gas or liquid fuels, attenuate the carbon emissions, and aid the waste management (see Figure 9).…”

Section: Production Of Gas And/or Liquid Fuels By the Pyrolysis Of Waste Plasticsmentioning

confidence: 99%

Recent Progress in the Chemical Upcycling of Plastic Wastes

2021

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The massive generation of plastic wastes without satisfactory treatment has induced severe environmental problems and gained increasing attentions. In this Minireview, recent progresses in the chemical upcycling of plastic wastes by using various methods (mainly in the past three to five years) is summarized. The chemical upcycling of plastic wastes points out a "plastic-based refinery" concept, which is to use the plastic wastes as platform feedstocks to produce highly valuable monomeric or oligomeric compounds, putting the plastic wastes back into a circular economy. The different chemical methods to upcycle plastic wastes, including hydrogenolysis, photocatalysis, pyrolysis, solvolysis, and others, are introduced in each section to valorize diverse plastic feedstocks into value-added chemicals, materials, or fuels. In addition, other emerging technologies as well as the new generation of plastic thermosets are covered.

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Section: Production Of Gas And/or Liquid Fuels By the Pyrolysis Of Waste Plasticsmentioning

confidence: 99%

Recent Progress in the Chemical Upcycling of Plastic Wastes

2021

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“…This may be due to the fact that there are some impurities in waste plastic in the form of coloring agent, binders etc. which act as poison for acidic catalyst and led to the deactivation of catalyst in the case of conversion of waste polymers (Huo et al 2020).…”

Section: Catalytic Pyrolysis Of Domestic Plastic Waste and Mixed Virgin Plasticmentioning

confidence: 99%

“…Furthermore, Furthermore, the pyrolytic gases have good potential to utilize in turbine for power generation or can be used directly to boilers as a substitute for coal without any additional pretreatment. Currently, jet fuel production from plastic waste through catalytic pyrolysis has attracted signi cant attention (Huo et al 2020). In the present study, hydrocarbons obtained from different plastic feedstock were also similar to jet fuels hydrocarbon range from 37 % to 43% when no catalyst was used (Table 6).…”

Section: Gas Analysis Obtained From Pyrolysis Of Plastic Wastementioning

confidence: 99%

Production And Characterization of Transportation Fuels From Domestic Plastic Wastes And Mixed Virgin Plastics By Low- Cost Catalytic Pyrolysis

Ghodke¹,

Moorthy²,

Sharma³

et al. 2021

Preprint

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With increasing population, modernization, and industrialization, plastics usage is growing daily and results in vast plastic waste. Recycling these plastic wastes to hydrocarbon fuels is challenging due to their different chemical structures, long-chain polymeric compositions, and decomposition/thermal behavior. In the present manuscript, the pyrolysis of domestic plastic waste was carried out at 473 - 973 K in a fixed bed tubular reactor and compared with individual virgin plastics, i.e. HDPE (High-density polyethylene), LDPE (Low-density polyethylene), PP (Polypropylene), and their mixture of (virgin mixed plastic). The experiments were also performed using a low-cost catalyst (mineral clay) to maximize hydrocarbon fuels. At identified optimum operating conditions, the domestic plastic waste and mixed virgin plastics yielded 73.1 wt% and 81.6 wt% liquid hydrocarbons along with 16.9 wt% and 25.5 wt.% pyrolysis gas, respectively. The composition of liquid fuels was analyzed using FTIR and GC-MS in detail, revealing a wide variety of hydrocarbons disbursement in the range of C8–C20. In addition, fuel properties of liquid fuels such as viscosity, density, fire and flash point, pour point, and calorific value was analyzed according to ASTM methods and found to be satisfactory. Based on chemical composition and fuel properties, liquid fuels derived from domestic plastic wastes showed 78.05%, and 61.86 % similarity with diesel, and jet fuels respectively. Non-condensable gases, which mainly consist of ethane and propene with minor amounts of hydrogen and methane, have been identified to be ideal for spark-ignition engine (SI) engines. This study offers a unique technique for converting waste plastics into transportation jet fuel using an affordable catalyst.

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“…Many catalysts have been described for the pyrolysis of polyolefins such as zeolites (ZSM-5, Y-zeolite, natural zeolites, red mud, among others) [12]. The MgO was proven to be a valuable and cost-efficient catalyst for the pyrolysis of plastics [13]. The CaO is another cost-effective catalyst that could be tested for the direct liquefaction tests, especially because of its catalytic activity in the pyrolysis of plastics [14].…”

Section: Introductionmentioning

confidence: 99%

Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts

et al. 2022

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The polyolefin to lighter molecules reaction reduces the waste-plastic residues to produce fuels and valuable chemicals. Commercial MgO light and CaO were used as catalysts for the direct polyethylene and polypropylene liquefaction in N2 or CO2 atmospheres. The products were analyzed (ATR-FTIR, GC-FID/TCD, GC-FID, density, refractive index). The use of MgO light and CaO improved the conversion of propylene and ethylene to liquid products. In addition, low gaseous and solid products yields were obtained. A good production of organic liquids in the gasoline, diesel and kerosene boiling range was obtained. The use of CO2, in some cases, led to a higher conversion into liquids compared with the reactions performed in the N2 atmosphere. In addition, the use of the CO2 atmosphere led to a higher content of products with a boiling range in the diesel and kerosene ranges.

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Jet fuel and hydrogen produced from waste plastics catalytic pyrolysis with activated carbon and MgO

Cited by 98 publications

References 38 publications

Recent Progress in the Chemical Upcycling of Plastic Wastes

Recent Progress in the Chemical Upcycling of Plastic Wastes

Production And Characterization of Transportation Fuels From Domestic Plastic Wastes And Mixed Virgin Plastics By Low- Cost Catalytic Pyrolysis

Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts

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