Scholarlink

<p>Oil sludge is composed of both inorganic and organic compounds, poses a serious threat to the environment. This research aimed to examine the impact of temperature (200–600&#xa0;°C), N<sub>2</sub> flow rate (100–800 mL/min), and HZSM-5, KOH, TiO<sub>2</sub>, and Al<sub>2</sub>O<sub>3</sub> catalysts on pyrolysis oil. Each catalyst had a unique effect on the process, generally increasing the heating value and producing lighter hydrocarbons. In addition, increasing temperature increased pyrolysis oil and increasing N<sub>2</sub> flow increased biochar production. The optimal temperature and gas flow rate for pyrolysis oil production yield were determined to be 531&#xa0;°C and 202 mL/min. TiO<sub>2</sub> exhibited the best performance, resulting in a 25% increase in heat value, a 15% increase in H/C, and a 60% decrease in O/C compared to the non-catalytic process, due to its high activity on promoting secondary cracking phenomena. Furthermore, the use of catalysts led to the production of 80–520 wt% more aliphatic compounds in the pyrolysis oil while simultaneously reducing the presence of aromatics by 18–81 wt%. The Al<sub>2</sub>O<sub>3</sub> catalyst produced the highest percentage of light hydrocarbons at 48.13 wt%, while the KOH catalyst had the lowest amount of SNO compounds at a rate of 89.62 wt%. </p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of temperature and type of catalyst on the composition of pyrolysis oil obtained from oil sludge

  • 期刊论文

  • 发表日期：

    2025年5月13日

查看全文
  • Reza Morvaridi,
  • Ahmad Hallajisani,
  • Jale Rasouli

摘要

Oil sludge is composed of both inorganic and organic compounds, poses a serious threat to the environment. This research aimed to examine the impact of temperature (200–600 °C), N2 flow rate (100–800 mL/min), and HZSM-5, KOH, TiO2, and Al2O3 catalysts on pyrolysis oil. Each catalyst had a unique effect on the process, generally increasing the heating value and producing lighter hydrocarbons. In addition, increasing temperature increased pyrolysis oil and increasing N2 flow increased biochar production. The optimal temperature and gas flow rate for pyrolysis oil production yield were determined to be 531 °C and 202 mL/min. TiO2 exhibited the best performance, resulting in a 25% increase in heat value, a 15% increase in H/C, and a 60% decrease in O/C compared to the non-catalytic process, due to its high activity on promoting secondary cracking phenomena. Furthermore, the use of catalysts led to the production of 80–520 wt% more aliphatic compounds in the pyrolysis oil while simultaneously reducing the presence of aromatics by 18–81 wt%. The Al2O3 catalyst produced the highest percentage of light hydrocarbons at 48.13 wt%, while the KOH catalyst had the lowest amount of SNO compounds at a rate of 89.62 wt%.