使用电离辐射从乙烯糖醇中核合成甲醇和乙甲
Arran George Plant1, Bor Kos2, Anže Jazbec2
1School of Engineering, Lancaster University, Lancaster LA1 4YW, U.K.
概括
核反应堆可以将废弃生物质转化为有价值的化学物质,如乙甲和甲醇. 这项研究探讨了优化这些核联合发电过程,以从乙烯糖醇中有效地生产化学物质.
科学领域:
- 核化学 核化学 核化学
- 放射化学 放射化学是指辐射化学.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 由于成本高昂,全球核能利用量下降.
- 通过热电联产,在化学生产中核能的潜力.
- 使用电离辐射对废弃生物质衍生的原料进行价值化.
研究的目的:
- 通过核反应堆辐射,从乙烯基醇中选择性生产甲醇和乙.
- 研究辐射质量,剂量速率和吸收剂量对放射化学产量 (G值) 的影响.
- 评估核联合发电在工业规模化学合成中的潜力.
主要方法:
- 使用核裂变反应堆对乙烯甘醇 (由甘油衍生) 进行辐射.
- 辐射参数的系统变化:剂量速率,辐射质量 (玛,中子+玛) 和吸收剂量.
- 测量放射化学产量 (G值) 和甲醇和乙甲的质量生产率.
主要成果:
- 在低剂量速率的玛放射溶解中,乙甲的生产达到8.28 ± 1.05 μmol J-1的最大G值.
- 在高剂量混合场 (中子+玛) 辐射下,甲醇生产产生了2.91±0.78μmol J-1的G值.
- 理论系统表明,使用废燃料池辐射,有可能满足全球4.96%的乙甲需求.
结论:
- 核反应堆的辐射可以从乙烯基醇中选择性合成乙甲和甲醇.
- 对照射条件 (剂量率,辐射质量) 的控制决定了产品的选择性和产量.
- 核联合发电为可持续化学生产提供了一个可行的途径,利用废弃原料和核能.
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