A novel production of phase-divided jet-fuel-range hydrocarbons and phenol-enriched chemicals from catalytic co-pyrolysis of lignocellulosic biomass with low-density polyethylene over carbon catalysts,Sustainable Energy & Fuels

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A novel production of phase-divided jet-fuel-range hydrocarbons and phenol-enriched chemicals from catalytic co-pyrolysis of lignocellulosic biomass with low-density polyethylene over carbon catalysts
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-05-12 , DOI: 10.1039/d0se00419g
Dengle Duan _{1,

2,

3,

4,

5} , Yayun Zhang _{1,

2,

3,

4,

6} , Hanwu Lei _{1,

2,

3,

4} , Moriko Qian _{1,

2,

3,

4} , Elmar Villota _{1,

2,

3,

4} , Chenxi Wang _{1,

2,

3,

4} , Yunpu Wang _{7,

8,

9,

10,

11} , Roger Ruan _{4,

12,

13,

14}

Affiliation

The catalytic co-pyrolysis of Douglas fir and low-density polyethylene with commercial activated carbon catalysts was investigated for the first time. Six types of activated carbon catalysts were tested and compared. The obtained liquid product contained physically separated parts being in the oil and water phases, where the percentage of the oil phase ranged from 10.10 to 64.4 wt% depending on various co-pyrolysis conditions. The oil phase of bio-oil was rich in C₈–C₁₆ aromatics and aliphatics (up to 98.6 area%) that were compatible with transportation jet fuel. In addition, the main components of the bio-oil in the water phase were phenols and guaiacols, in which high phenol selectivity (up to 92.9 area%) and phenol concentration (up to 26.4 mg mL⁻¹) were achieved. Hydrogen, methane, carbon dioxide, and carbon monoxide were the main fractions of gaseous products, where a high concentration of methane (23.6 vol%) and carbon monoxide (39.1 vol%) could be obtained. The process was optimized based on an overall consideration of bio-oil yield, C₈–C₁₆ hydrocarbon selectivity, and phenol concentration. Furthermore, a reaction mechanism for the production of phenols and hydrocarbons was proposed. Our findings may provide a novel, green, and cost-effective route to produce phase-divided phenol-enriched chemicals and transportation jet fuels.

中文翻译：

木质纤维素生物质与低密度聚乙烯在碳催化剂上催化共热解生产相分离的喷气燃料范围碳氢化合物和富含酚的化学物质

首次研究了道格拉斯冷杉和低密度聚乙烯与商业活性炭催化剂的催化共热解。测试并比较了六种类型的活性炭催化剂。所获得的液体产物包含在油相和水相中的物理分离的部分，其中油相的百分比根据各种共热解条件在10.10wt％至64.4wt％的范围内。生物油的油相富含与运输喷气燃料兼容的C ₈ -C ₁₆芳族化合物和脂肪族化合物（最大98.6面积％）。此外，水相中生物油的主要成分是苯酚和愈创木酚，其中苯酚选择性高（高达92.9面积％）和苯酚浓度（高达26.4 mg mL ^-1））达成。氢气，甲烷，二氧化碳和一氧化碳是气态产物的主要馏分，可以得到高浓度的甲烷（23.6体积％）和一氧化碳（39.1体积％）。在综合考虑生物油收率，C ₈ -C ₁₆烃选择性和苯酚浓度的基础上对工艺进行了优化。此外，提出了生产酚和烃的反应机理。我们的发现可能会提供一种新颖，绿色且具有成本效益的途径来生产相分离的富酚化学物质和运输喷气燃料。

更新日期：2020-06-30

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