Tong Han, Nanta Sophonrat, Panagiotis Evangelopoulos, Henry Persson, Weihong Yang, Pär Jönsson
文献索引:10.1016/j.jaap.2018.04.006
全文:HTML全文
Sulfonated Kraft lignin, the most available commercial lignin of today, has high sulfur content due to the extraction and the subsequent sulfonation processes. In this work, the evolution of sulfur during fast pyrolysis of sulfonated Kraft lignin has been studied. Fast Pyrolysis experiments have been done using Py-GC/MS. It is found that main sulfur-containing products in the pyrolytic vapors are present as the following small molecular compounds: H2S, SO2, CH3SH, CH3SCH3, and CH3SSCH3. This indicates that sulfur-containing radicals preferentially combine with the other small radicals such as H and
CH3 during fast pyrolysis process. Sulfur is suggested to be mainly present as sulfite (
SO−3) and sulfide (
S
) in the sulfonated Kraft lignin. Sulfite that is incorporated into lignin during the sulfonation process mainly result in the formation of SO2. The nature of the sulfur links created during the Kraft pulping process is difficult to determine, but they are supposed to mainly exist in form of sulfide (
S
) bonds, which lead to the formation of H2S, CH3SH, CH3SCH3 and CH3SSCH3.
Distribution of PCDD/Fs over the three product phases in wet...
2018-04-10 [10.1016/j.jaap.2018.04.005] |
Study of the thermal behavior, kinetics, and product charact...
2018-04-07 [10.1016/j.jaap.2018.04.001] |
Ni-doped high silica HZSM-5 zeolite (Si/Al = 200) nanocataly...
2018-04-05 [10.1016/j.jaap.2018.04.003] |
Coupling pyrolysis with mid-infrared spectroscopy (Py-MIRS) ...
2018-04-04 [10.1016/j.jaap.2018.04.004] |
Forensic comparison of pyrograms using score-based likelihoo...
2018-03-31 [10.1016/j.jaap.2018.03.024] |
首页 |
期刊大全 |
MSDS查询 |
化工产品分类 |
生物活性化合物 |
关于我们 |
免责声明:知识产权问题请联系 service1@chemsrc.com
Copyright © 2024 ChemSrc All Rights Reserved