Scholarlink

The presence of volatile substrates within cavitation bubbles during oscillations markedly alters bubble temperature dynamics and reactivity. This chapter explores the sono-pyrolysis of carbon tetrachloride (CCl4), methanol (CH3OH), and methane (CH4) using numerical single-bubble sonochemistry models. Results reveal that carbon tetrachloride enhances the production of reactive oxygen species (ROS) and reactive chlorine species (RCS), making it advantageous for the accelerated degradation of non-volatile pollutants. In contrast, methanol suppresses ROS formation while promoting hydrogen generation. Methane, even at low gas-phase concentrations, increases hydroxyl radical (⋅OH) production but has a stronger effect on hydrogen yield. These findings underscore the versatile roles of volatile substrates: CCl4 supports pollutant degradation, whereas CH3OH and CH4 show promise for energy-efficient hydrogen production. This chapter provides an analysis of the sono-pyrolysis behavior of these compounds, offering baseline insights to optimize and control sonochemical processes for environmental and energy applications.

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

Bubble Interactions with Volatile Solute Species

  • 章节

  • 发表日期：

    2025年

查看全文
  • Slimane Merouani,
  • Kyuichi Yasui,
  • Oualid Hamdaoui,
  • Aissa Dehane

摘要

The presence of volatile substrates within cavitation bubbles during oscillations markedly alters bubble temperature dynamics and reactivity. This chapter explores the sono-pyrolysis of carbon tetrachloride (CCl4), methanol (CH3OH), and methane (CH4) using numerical single-bubble sonochemistry models. Results reveal that carbon tetrachloride enhances the production of reactive oxygen species (ROS) and reactive chlorine species (RCS), making it advantageous for the accelerated degradation of non-volatile pollutants. In contrast, methanol suppresses ROS formation while promoting hydrogen generation. Methane, even at low gas-phase concentrations, increases hydroxyl radical (⋅OH) production but has a stronger effect on hydrogen yield. These findings underscore the versatile roles of volatile substrates: CCl4 supports pollutant degradation, whereas CH3OH and CH4 show promise for energy-efficient hydrogen production. This chapter provides an analysis of the sono-pyrolysis behavior of these compounds, offering baseline insights to optimize and control sonochemical processes for environmental and energy applications.