It is to quantitatively analyze the influence range of hydrogen sulfide leakage under different scenarios and the response law of various parameters, and then provide quantitative data for hydrogen sulfide leakage protection. According to the unified diffusion model and the heavy gas diffusion theory, the diffusion characteristics, concentration distribution and downwind distance of hydrogen sulfide under different leakage conditions were studied by means of Process Hazard Analysis Software Tool (PHAST) of DET NORSKE VERITAS (DNV). The results showed that the immediately dangerous to life or health (IDLH) concentration downwind distance from the 661 m to the 2404 m increased when the leakage persisted for 1 min. The downwind distance and maximum cloud width of IDLH and maximum allowable concentration (MAC) have increased by 3~4 times. Changes in durations of 5 and 30 min were similar. At the same leakage aperture, the IDLH downwind distance was shortened by 31.4%, 23.8%, and 24.7%, respectively, when the mesopore and large holes leaked and ruptured. Correspondingly, the maximum cloud width has increased by 1.4~1.7 times. At a wind speed of 4 m/s, the IDLH and MAC downwind distance of the atmospheric stability E were 2.8 and 3.8 times than that of B, respectively. The IDLH and MAC downwind distances for medium stability D and wind speed 8.5 m/s were 49.2% and 39.3%, respectively, in comparison with that at a wind speed of 1.5 m/s. The downwind distance and the maximum cloud group width showed a logarithmic relationship as the surface roughness increased. The main hazardz that can be caused by hydrogen sulfide leakage were poisoning, followed by jet fire, flash fire and explosion. Quantitative analysis results can be used in leakage protection, considering both individual protection and safety isolation. The influence area of leakage can be used as the boundary of hydrogen sulfide safety isolation.
Baoquan XIN Wei LU Xiangjian ZHANG Lu WAN
. Quantitative analysis method and index response law of hydrogen sulfide leakage[J]. The Chinese Journal of Process Engineering, 2018
, 18(S1)
: 82
-88
.
DOI: 10.12034/j.issn.1009-606X.20180084
[1]章博, 王志刚, 王彦富.高硫炼油装置硫化氢泄漏场景集定量分析[J].中国安全生产科学技术, 2015, 11(10):73-78
[2]Zhang Bo, Wang Zhigang, Wang Yanfu.Quantitative analysis of hydrogen sulfide leakage scene in high sulfur refining unit[J].China safety production science and technology, 2015, 11(10):73-78
[3]Mohtadi-Bonab M A, Eskandari M.A focus on different factors affecting hydrogen induced cracking in oil and natural gas pipeline steel[J].Engineering Failure Analysis, 2017, 79:351-360
[4]毛小虎, 郝永梅, 邢志祥, 等.城市天然气管道动态泄漏扩散特性模拟分析[J].油气储运, 2014, 33(04):374-379
[5]Mao Xiaohu, Hao Yongmei, Xing Zhixiang, et al.Simulation and analysis of dynamic leakage and diffusion characteristics of urban natural gas pipeline[J].oil and gas storage and transportation, 2014, 33(04):374-379
[6]邓海发, 陈国明, 朱渊, 等.海洋钻井平台井喷硫化氢扩散规律研究[J].安全与环境学报, 2010, 10(05):177-180
[7]Deng Haifa, Chen Guoming, Zhu Yuan, et al.Study on the diffusion of hydrogen sulfide in offshore drilling platform[J].Journal of safety and environment, 2010, 10(05):177-180
[8]蒋军成, 潘旭海.描述重气泄漏扩散过程的新型模型[J].南京工业大学学报（自然科学版）, 2002,, (1):41-46
[9]Jiang Juncheng, Pan Xuhai.A new model [J]. Journal of Nanjing University of Technology described the process of diffusion of heavy gas (NATURAL SCIENCE EDITION), 2002, (1): 41-46.
[10]Wang Y, Zhang R, Zhang Z, et al.Leakage risk quantitative calculation model and its application for anaerobic reactor[J]. Journal of the Taiwan Institute of Chemical Engineers, 2017.
[11]Liu D, Wei J.Modelling and simulation of continuous dense gas leakage for emergency response application[J]. Journal of Loss Prevention in the Process Industries, 2017, 48:14-20.
[12]邱永年, 胡利明.凝析油炼制场所硫化氢事故爆炸风险分析[J].石油化工安全环保技术, 2014, 30(01):42-46
[13]Qiu Yongnian, Hu Liming.Condensate oil refining hydrogen sulfide explosion accident risk analysis places[J].petroleum and chemical safety and environmental protection technology, 2014, 30(01):42-46
[14]Pandya N, Gabas N, Marsden E.Sensitivity analysis of Phast’s atmospheric dispersion model for three toxic materials (nitric oxide,ammonia,chlorine)[J].Journal of Loss Prevention in the Process Industries, 2012, 25(1):20-32
[15]雷达, 张建文, 冯文兴.含硫化氢天然气泄漏事故的硫化氢中毒灾害分析[J].安全与环境学报, 2012, (3):224-228
[16]Lei Da, Zhang Jianwen, Feng Wenxing.Analysis of the hazards of hydrogen sulfide poisoning with hydrogen sulfide natural gas leakage accidents [J]. safety and environment, 2012, (3): 224-228.
[17]敬加强, 李小明, 江漩涛, 等.不同硫化氢浓度下的天然气管道泄漏扩散数值模拟[J].当代化工, 2015, (11):2710-2713
[18]Jing Jiaqiang, Li Xiaoming, Jiang Xuan Tao, et al.Natural gas pipeline under different concentration of hydrogen sulfide leakage diffusion numerical simulation [J]. contemporary chemical industry, 2015, (11): 2710-2713.
[19]AQ/T 3046—2013, 化工企业定量风险评价导则.
[20]AQ/T3046-2013, Guidelines for quantitative risk assessment of chemical enterprises.
[21]高少华, 邹兵, 严龙, 等.含硫天然气净化厂硫化氢泄漏分析及对策[J].中国安全生产科学技术, 2012, (2):174-179.
[22]Gao Shaohua, Zou Bing, Yan long, et al.Analysis and Countermeasures of hydrogen sulfide leakage in sulfur containing natural gas purification plant [J]. China safety production science and technology, 2012, (2): 174-179.
[23]API Publ4628.A Guidance Manual For Modeling Hypothetical Accidental Releases to the Atmosphere[S].
[24]王龙, 马贵阳.天然气管道泄漏后硫化氢和甲烷危险区域分析[J].当代化工, 2015, (4):760-762, 765.
[25]Wang Long, Ma Guiyang.Analysis of the hazardous area of hydrogen sulfide and methane after leakage of natural gas pipeline [J]. Contemporary chemical industry, 2015, (4): 760-762765.
