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首页> 外文期刊>Energy Conversion & Management >Microwave-assisted pyrolysis of waste cooking oil for hydrocarbon bio-oil over metal oxides and HZSM-5 catalysts
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Microwave-assisted pyrolysis of waste cooking oil for hydrocarbon bio-oil over metal oxides and HZSM-5 catalysts

机译：用于金属氧化物和HZSM-5催化剂的烃生物油废料烹饪油的微波辅助热解

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摘要

Microwave-assisted pyrolysis of waste cooking oil is an environmentally friendly and economical method for obtaining benzene, toluene, ethylbenzene, and xylene (BTEX) which are important industrial chemicals. This study provides new routes to produce of BTEX and the utilization of waste cooking oil. The effect of catalytic temperatures (350 degrees C, 400 degrees C, 450 degrees C, 500 degrees C, and 550 degrees C), types of metal oxide (CoO, NiO, ZrO2, SrO, CeO2, and CaO), catalytic modes (ex-situ mixed catalysis, ex-situ separate catalysis, and in-situ separate catalysis), and ratio of HZSM-5 to metal oxide (HZSM-5 only, 4:1, 2:1, 1:1, 1:2, and CaO only) were studied. Results showed high catalytic temperature promoted the formation of monocyclic aromatic hydrocarbons at the cost of a decrease in bio-oil yield. But the concentration of BTEXS (benzene, toluene, ethylbenzene, xylene, and styrene) only increased from 256.58 mg/ml to 259.55 mg/ml with a temperature increase from 500 degrees C to 550 degrees C. Alkaline earth metal oxides (CaO, SrO) showed a significant deoxygenation capability during co-catalysis with HZSM-5. However, when CaO was applied under ex-situ mixed catalysis, the concentration of polycyclic aromatic hydrocarbons was up to 35.47%, which was much higher than 9.18% under HZSM-5 only. Also, the concentration of BTEXS decreased from 256.58 mg/ml (HZSM-5 only) to 167.54 mg/ml (HZSM-5 mixed with CaO). Further investigation of catalytic mode showed that ex-situ separate catalysis was more suitable for co-catalysis of alkaline earth metal oxides and HZSM-5. The concentration of BTEXS were both significantly higher than that of HZSM-5 only, which increased by 121.81 mg/ml for CaO and 108.52 mg/ml for SrO under ex-situ separate catalysis. Further study showed that the highest concentration of BTEXS was 702.20 mg/ml obtained when the ratio of HZSM-5 to CaO was 2:1. It was almost 2.8 times higher than HZSM-5 alone and 42.2 times higher than non-catalytic results.
机译：废物烹饪油的微波辅助热解是获得苯，甲苯，乙苯和二甲苯（BTEX）的环保和经济的方法，这些方法是重要的工业化学品。本研究为生产BTEX的生产和废物烹饪油的利用提供了新的路线。催化温度的影响（350℃，400℃，450℃，500℃，550℃），金属氧化物（CoO，NiO，ZrO2，SrO，CeO2和CaO），催化模式（ ex-situ混合催化，ex-situ单独的催化和原位分离催化），以及Hzsm-5与金属氧化物的比例（仅限Hzsm-5，4：1，2：1，1：1，1：2和曹只会研究过。结果表明，高催化温度以生物油产率降低的成本促进了单环芳烃的形成。但BTEXS（苯，甲苯，乙苯，二甲苯和苯乙烯）的浓度仅从256.58mg / ml增加到259.55mg / ml，其温度从500℃升高至550℃。碱土金属氧化物（CAO，SRO ）在用HZSM-5共催化期间显示出显着的脱氧能力。然而，当在原位混合催化下应用CaO时，多环芳烃的浓度高达35.47％，仅在HzSM-5下高于9.18％。此外，BTEX的浓度从256.58mg / ml（仅HzSM-5）降低至167.54mg / ml（HZSM-5与CaO混合）。进一步调查催化模式表明，脱原单催化更适合于共催化碱土金属氧化物和HZSM-5。 BTEX的浓度均显着高于HZSM-5的浓度，其CaO和108.52mg / ml在出原位单独的催化下均为CAO和108.52mg / ml的121.81mg / ml。进一步的研究表明，当HZSM-5至CaO的比例为2：1时，获得的最高浓度为702.20mg / ml。它仅比HZSM-5高2.8倍，比非催化结果高出42.2倍。

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  • 来源
    《Energy Conversion & Management》 |2020年第9期|113124.1-113124.12|共12页
  • 作者

    Wu Qiuhao; Wang Yunpu; Peng Yujie; Ke Linyao; Yang Qi; Jiang Lin; Dai Leilei; Liu Yuhuan; Ruan Roger; Xia Donghua; Jiang Li;

  • 作者单位

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China|Univ Minnesota Ctr Biorefining 1390 Eckles Ave St Paul MN 55112 USA|Univ Minnesota Dept Bioprod & Biosyst Engn 1390 Eckles Ave St Paul MN 55112 USA;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China|Univ Minnesota Ctr Biorefining 1390 Eckles Ave St Paul MN 55112 USA|Univ Minnesota Dept Bioprod & Biosyst Engn 1390 Eckles Ave St Paul MN 55112 USA;

    Nanchang Univ Engn Res Ctr Biomass Convers State Key Lab Food Sci & Technol Minist Educ Nanchang 330047 Jiangxi Peoples R China;

    Jiangxi Univ Tradit Chinese Med Nanchang 330004 Jiangxi Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microwave-assisted catalytic pyrolysis; Waste cooking oil; Metal oxide; HZSM-5; Bio-oil; Quantitative analysis;

    机译：微波辅助催化热解;废料烹饪油;金属氧化物;HZSM-5;生物油;定量分析;

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