用于脂质原料水处理的活性碳支持Pt催化剂:支表面组成和浸协议的影响
Ruana D Brandão1,2, Antônio M de Freitas Júnior1,3, José J Linares1
1Institute of Chemistry, University of Brasilia, Campus Darcy Ribeiro, Brasilia CEP 70904-970, DF, Brazil.
Molecules (Basel, Switzerland)
|July 12, 2025
概括
在活性炭 (Pt/AC) 催化剂上的通过和脂肪酸 (HEFA) 的水处理途径有效地生产碳化合物生物燃料,为生物质转化提供无硫替代品.
科学领域:
- 催化剂是一种催化剂.
- 可再生能源可再生能源是可再生能源.
- 绿色化学 绿色化学
背景情况:
- 传统的水处理催化剂 (硫化Mo/γ-Al2O3) 是不稳定的,当与生物质原料一起使用时,会使生物燃料受到硫污染.
- 和脂肪酸的水处理 (HEFA) 是生物燃料合成的关键途径.
- 生物质原料的氧化 (HDO) 需要强大且无硫的催化剂.
研究的目的:
- 系统地研究用于HEFA的Pt/AC催化剂的制备.
- 评估制备条件对Pt/AC催化剂性能和HEFA性能的影响.
- 为碳化合物生物燃料生产开发高效,无硫的催化剂.
主要方法:
- 在不同的条件下制备Pt/AC催化剂.
- 活性炭 (AC) 的热处理在H2大气中支持高达800°C的温度.
- 通过湿浸浸使用H2PtCl6溶液的金沉积.
- 酸和子油的氧化催化试验.
主要成果:
- 在HEFA中成功制备了pt/AC催化剂,并显示出高效率.
- 劳里克酸和子油的完全脱氧得到了实现,产生了n-基.
- 观察到最佳的催化剂性能为使用AC预处理在800°C的H2中准备的Pt/AC.
结论:
- 通过HEFA,PT/AC催化剂对无硫碳化合物生物燃料的合成非常有效.
- 换流的热预处理显著提高了催化剂的性能.
- Pt/AC催化剂显示出生物质可持续生物燃料生产的巨大潜力.
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