超低温预处理对椰壳基活性炭物理特性的影响  

Impact of ultra-low temperature pretreatment on physical properties of cocoanut activated carbon

作　　者：司洪宇[1] 杨黎军 孙坤元 梁晓辉[1] 赵玉晓[1] 张晓东[1] 张元成 SI Hong- yu YANG Li- jun SUN Kun- yuan LIANG Xiao-hui ZHAO Yu- xiao ZHANG Xiao- dong ZHANG Yuan- cheng(Energy Research Institute, Shandong Academy of Sciences, Jinan 250014, China Shandong Guanbaolin Carbon Industry Group Co. Ltd., Qingdao 266300, China Shandong Baoli Biomass Energy Co. Ltd., Dongying 257000, China)

机构地区：[1]山东省科学院能源研究所,山东济南250014 [2]山东冠宝林炭业集团有限公司,山东青岛266300 [3]山东宝力生物质能源股份有限公司,山东东营257000

出　　处：《山东科学》2016年第6期74-79,共6页Shandong Science

基　　金：国家科技支撑计划(2015BAD21B01);公益性行业(农业)科研专项(201503135-04);山东省重点研发计划(2015GSF117034);青海省科技促进新农村计划项目(2013-N-547)

摘　　要：为提高活性炭的吸附性能并降低制备工艺能耗,研究超低温预处理对活性炭品质及其制备工艺的影响,采用液氮对椰壳进行了超低温预处理。通过快速升温活化,在600℃下即制得比表面积超过无预处理800℃下制得的活性炭,比表面积由1600 m2/g增大至2300 m2/g以上,微孔总体积也由0.67 cm3/g增加至0.92 cm3/g。结果表明,超低温预处理方式对提高活性炭品质和降低工艺能耗都有显著的促进作用,该研究为活性炭功能性开发和表面结构改良研究提供了参考依据。To enhance absorption property of activated carbon and reduce energy consumption of preparation technology, we address the impact of ultra-low temperature pretreatment on quality and preparation technology of activated carbon. We employ liquid nitrogen to pretreat coconut shell at ultra-low temperature. Through rapid temperature rise, we prepare activated carbon at 600℃ whose specific surface area surpasses that of non-pretreatment activated carbon at 800 ℃. The specific surface area of activated carbon of the coconut shell increases to 2300 m^2/g from 1 600 m^2/g, and its micropore volume increases to 0.92 cm^3/g from 0.67 cm^3/g. Results show that ultra-low temperature pretreatment has significant positive effect to quality improvement and reduction of energy consumption of activated carbon. The research provides reference for functional development and the improvement of surface structure of activated carbon.

关 键 词：超低温 快速升温 活性炭 

分 类 号：TQ424.15[化学工程]