低温热解析对氧化铝系废弃脱汞剂中汞的回收  

Low-temperature Thermal Desorption of Containing Mercuric Sulfide Absorbent of Aluminum Oxide

作　　者：严启团[1] 李森[2,3,4] 王淑英[1] 韩中喜[1] 唐楚寒 李璐 YAN Qi-tuan LI Sen WANG Shu-ying HAN Zhong-xi TANG Chu-han LI Lu(Langfang Branch Institute, Research Institute of Petroleum Exploration and Development, Langfang 065007 ,P. R. China Guizhou Merit Environmental Technology Co. , Ltd. , Guiyang 550001, P.R. China Guizhou Botanical Garden, Guiyang 550004, P. R. China Institute of Geochemistry Chinese Academy of Sciences, Guiyang 550081 ,P. R. China)

机构地区：[1]中国石油勘探开发研究院廊坊分院,廊坊065007 [2]贵州美瑞特环保科技有限公司,贵阳550001 [3]贵州省植物园,贵阳550004 [4]中国科学院地球化学研究所,贵阳550081

出　　处：《科学技术与工程》2016年第34期308-313,共6页Science Technology and Engineering

摘　　要：天然气脱汞净化工艺中产生的含汞废物,通常采用高温热解析（温度在800-1 000℃之间）回收其中的汞。这项技术存在一定的劣势,例如高温加热需要花费高成本,还可能破坏像脱汞剂这类材料的性质,导致失去再生性能。为克服这些缺点,研发出更加适合的低温热脱附回收技术,该技术加热温度250-350℃之间,并且在350℃下汞回收率可达到99.8%以上。Containing mercury waste produced in the process of removal of mercury from natural gas, which is usually recovered by high temperature thermal treatment （ heating temperatures of 800 to 1 000 ℃）, such as mer-curic sulfide. However, this technique has drawbacks, such as very high treatment costs for high temperature heating and the possibility of changing the mercury adsorbent characteristics, resulting in loss of regeneration performance. In order to overcome these drawbacks, Fundamental laboratory research have be undertaken to develop more suitable low-temperature thermal desorption technology. The method allows heating temperatures to be as low as 250 to 350 ℃, and even 350℃ showed that more than 99.8% mercury could be removed.

关 键 词：低温热脱附 脱汞吸附剂 硫化铁 硫化汞 再生利用 

分 类 号：X74[环境科学与工程—环境工程]