摘要
以活性炭、活性焦作为脱硫剂,并应用BET、XPS等测试手段对其进行分析表征。结果表明,活性炭(焦)的脱硫能力与其表面酸碱性有着密切的关系,增加表面上起碱性作用的π—π*键,羰基官能团(CO和醚基官能团(C—O)的浓度,可增加其表面催化作用,特别是C—O官能团;反应温度对活性炭(焦)的脱硫性能有很大的影响,脱硫剂在150℃～180℃活性高,硫容大,副反应少;水蒸气对活性炭(焦)脱除H2S有促进作用。
The active carbon and active char were used as the desulfurizer and BET, XPS techniques were used to analyze and characterize the physical and chemical properties of the sorbent. The results show that the desulfurization ability of the active carbon （char） has a close relation with its surface chemical functional groups, especially with C-O group. The reaction temperature has a great impact on the desulfurization performance of the active carbon （char）. The desulfurizer shows a high reactivity, high sulfur capacity and fewer side reactions at 150℃-180℃. Meanwhile, the steam can promote the removal of hydrogen sulfide.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2009年第3期355-359,共5页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金(20706055)
国家重点基础研究发展规划(973计划,2005CB221203)
关键词
活性炭(焦)
吸附
催化脱除
低温脱硫
active carbon （char）
adsorption
catalytic removal
low temperature desulfurization
