摘要
以粉状白酒糟物理活化炭为原料,以羧甲基纤维素(CMC)、煤焦油和酒糟活性炭灰分碱处理溶出液为粘结剂,研究了高含Si灰生物质粉末活性炭的成型方法.结果表明,单独以CMC和煤焦油作为粘结剂,在4.0MPa成型压力下所制成型活性炭的侧压强度达120N/cm,但其碘吸附能力低于400mg/g.利用酒糟基活性炭灰碱处理溶出液,仅添加少量CMC成型的活性炭达到相同侧压强度,吸附能力达600mg/g以上,明显高于仅添加CMC或煤焦油成型的活性炭,以及原活性炭粉.对成型活性炭进行了红外光谱、XRD及SEM表征,分析了其粘结机理.
The activated carbon（AC） made from distilled spirits lees has high content of Si-rich ash. The molding methods of such AC by using carboxymethyl cellulose（CMC） ,coal tar and leaching solution from alkali treatment of the high-Si ash AC as the binder were investigated. The results showed that using only CMC or coal tar as the binder,the compressive strength of molded AC at a pressing pressure of 4 MPa reached the expected 120 N/cm,but the iodine adsorption capacity was lower than 400 mg/g. When using the silica alumina sol made with the leaching solution as the binder,mixing silica alumina sol and a small amount of CMC allowed the molded AC to have the satisfied compressive strength,while its adsorption capacity of iodine reached over 600 mg/g,higher than the AC molded with CMC or coal tar only,and original AC powder. The molded AC was characterized by FT-IR,XRD and SEM,and its binding mechanism analyzed.
出处
《过程工程学报》
CAS
CSCD
北大核心
2011年第6期1068-1074,共7页
The Chinese Journal of Process Engineering
基金
国家高技术研究发展计划(863)基金资助项目(编号:2009AA02Z209)
国家科技支撑计划基金资助项目(编号:2009BAC64B05
2010BAC66B01)
国家重点基础研究发展规划(973)基金资助项目(编号:2011CB201304)
国家自然科学基金资助项目(编号:21006114)
关键词
生物活性炭
白酒糟
活性炭成型
粘结剂
侧压强度
biomass activated carbon
distilled spirits lees
activated carbon molding
binder
ash utilization
silica alumina sol
