Experimental Assessment of Water Sprays Utilization for Controlling Hydrogen Sulfide Releases in Confined Space. (1st October 2015)

• Record Type: Journal Article
• Authors: Zhao, Dongfeng; Li, Chao; Liu, Jun; Zhou, Guoying; Zhang, Qingdong; Liu, Chunshuang
• Other Names: Huo Ziyang Academic Editor.
• Is Part Of: Journal of nanotechnology. Volume 2015(2015)
• Publication Date: 2015-10-01
• Subjects: Nanotechnology -- Periodicals; Nanotechnology; Nanotechnology; Periodicals; Periodicals; 620.5
• DOI: 10.1155/2015/958252
• Languages: English
• ISSNs: 1687-9503

Abstract

Abstract : This paper reported the utilization of water spray for controlling H2 S release in a confined space, which is especially important in industry. A typical spray tower was modified to simulate the confined space for people's enterable routine operation (e.g., pump room), in which the dilution capacity of water sprays can also be evaluated. This work consists of two parts: the first part focuses on the influences of different operating conditions on chemical dilution capacities of water sprays in mechanisms; the second one is comparison between two nozzle configurations for evaluating their feasibilities of practical application. Water sprays express eligible performance for H2 S release control even though their dilution capacity was weakened at high gaseous concentrations and rates of releases. The presence of Na2 CO3 can significantly improve absorption effectiveness of H2 S in water and the optimal Na2 CO3 additive was found to be 1.0 g·L −1 in this test. Compared with Na2 CO3, adjusting water flow rate may be an effective strategy in enhancing dilution capacity of water sprays due to the fact that larger flow rate led to both less dilution time ( T D ) and dilution concentration ( C D ). Furthermore, multinozzle configuration is more efficient than single-nozzle configuration under the same water consumption.