H2S Leakage Simulation and Environmental Emergency Management System Study for High Sulfur Natural Gas Purification Plant

  • Zhaohui Li, Tailiang Zhang, Weijie Liao, Jiabin Zhou

Abstract

A computational fluid dynamics (CFD) numerical model is used to study the diffusion patterns and influencing factors of high sulfur natural gas in real terrain based on the actual topographic location and process parameters of a natural gas purification plant, with user-defined programming of the leak rate. The results demonstrate that:(1) after the leak stops, the greater the wind speed, the greater the H2S diffusion range and the lower the concentration. (2)When the wind speed is small, the air mixing capacity is relatively weak, resulting in leaked H2S under the influence of the terrain, the accumulation of H2S in low-lying areas is not conducive to the spread of H2S, which is more harmful to human health and the surrounding environment.(3)The larger the leak aperture, the longer the distance and greater the concentration of H2S diffusion, in the aperture of 100 mm, the farthest distance of H2S diffusion is 2.77 km, the farthest distance at the maximum concentration of 19 ppm.(4) According to the numerical simulation results, three risk areas of different levels are divided, and different risk areas adopt different emergency plans to achieve rapid and efficient response to accidents.

Published
2020-12-01
How to Cite
Zhaohui Li, Tailiang Zhang, Weijie Liao, Jiabin Zhou. (2020). H2S Leakage Simulation and Environmental Emergency Management System Study for High Sulfur Natural Gas Purification Plant. Design Engineering, 711 - 723. Retrieved from http://www.thedesignengineering.com/index.php/DE/article/view/1114
Section
Articles