Emission measurement and safety assessment for the production process of silicon nanoparticles in a pilot-scale facility
Emission measurement and safety assessment for the production process of silicon nanoparticles in a pilot-scale facility
复制标题
中试规模硅纳米粒子生产过程的排放测量和安全评估
DOI：
10.1007/s11051-012-0759-y
复制
发表时间：
2012
影响因子：
2.5
通讯作者：
D. Pui
中科院分区：
文献类型：
--
作者：
Jing Wang;C. Asbach;H. Fissan;T. Hülser;H. Kaminski;T. Kuhlbusch;D. Pui
Emission into the workplace was measured for the production process of silicon nanoparticles in a pilot-scale facility at the Institute of Energy and Environmental Technology e.V. (IUTA). The silicon nanoparticles were produced in a hot-wall reactor and consisted of primary particles around 60 nm in diameter. We employed real-time aerosol instruments to measure particle number and lung-deposited surface area concentrations and size distribution; airborne particles were also collected for off-line electron microscopic analysis. Emission of silicon nanoparticles was not detected during the processes of synthesis, collection, and bagging. This was attributed to the completely closed production system and other safety measures against particle release which will be discussed briefly. Emission of silicon nanoparticles significantly above the detection limit was only observed during the cleaning process when the production system was open and manually cleaned. The majority of the detected particles was in the size range of 100–400 nm and were silicon nanoparticle agglomerates first deposited in the tubing then re-suspended during the cleaning process. Appropriate personal protection equipment is recommended for safety protection of the workers during cleaning.
