当前位置: X-MOL 学术Energy Fuels › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Online Study on the Catalytic Hydrotreatment of Guaiacol in Liquid Phase by Vacuum Ultraviolet Photoionization Time-of-Flight Mass Spectrometry
Energy & Fuels ( IF 5.2 ) Pub Date : 2021-08-20 , DOI: 10.1021/acs.energyfuels.1c02182
Cunhao Cui 1 , Xinghua Liu 2 , Chaoqun Zhou 1 , Chunjiang Liu 1 , Zhongyue Zhou 1 , Fei Qi 1
Affiliation  

The detailed information on bio-oil upgrading reactions such as hydrogenolysis, hydrogenation, and hydrodeoxygenation is of great significance for improving the productivity and selectivity. Due to the compositional complexity of bio-oil and harsh upgrading conditions (e.g., with pressure of 10–30 MPa), conventional “cook-and-look” methods fail to track the real-time evolutions of products, limiting the deep understanding of the complex upgrading processes. In this work, we applied a feasible strategy by combining an autoclave with online soft photoionization mass spectrometry via a pressure- and fine particle-resistant sampling interface. With this strategy, the detailed evolution of guaiacol hydrotreatment with the catalysis of Ru–Ni/SiO2 under different hydrogen pressures was investigated. A comparison of products evolution for reactions under different conditions revealed that the reaction pathways are determined by hydrogen pressure. This newly developed methodology is crucial in detecting reaction evolution in a bio-oil upgrading process; it also provides a general strategy to investigate the chemical reactions under harsh conditions of relevance to synthetic chemistry and chemical engineering.

中文翻译:

真空紫外光电离飞行时间质谱法在线研究愈创木酚液相催化加氢处理

氢解、加氢、加氢脱氧等生物油改质反应的详细信息对提高生产率和选择性具有重要意义。由于生物油的成分复杂和苛刻的升级条件(例如,压力为 10-30 MPa),传统的“烹饪和外观”方法无法跟踪产品的实时演变,限制了对生物油的深入理解。复杂的升级过程。在这项工作中,我们通过耐压和耐细颗粒采样接口将高压釜与在线软光电离质谱相结合,应用了一种可行的策略。通过这种策略,在 Ru-Ni/SiO 2催化下愈创木酚加氢处理的详细演变在不同的氢气压力下进行了研究。不同条件下反应产物演化的比较表明,反应途径是由氢气压力决定的。这种新开发的方法对于检测生物油升级过程中的反应演变至关重要;它还提供了在与合成化学和化学工程相关的恶劣条件下研究化学反应的一般策略。
更新日期:2021-09-02
down
wechat
bug