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Water content of liquid H2S in equilibrium with the hydrate phase
Fluid Phase Equilibria ( IF 2.8 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.fluid.2020.112865
Kayode I. Adeniyi , Francis Bernard , Connor E. Deering , Robert A. Marriott

Abstract Acid gas injection containing H2S is one strategy for managing atmospheric sulfur emissions where sulfur recovery may not be feasible or economical in some locations. Apart from its toxicity and corrosivity in wet environments, H2S forms a high temperature hydrate in the presence of water, which can cause issues such as plugging of transport pipelines or injection wellheads. Before transportation to injection, liquid water is removed from an injectate within the interstage suction scrubbers before each compression cycle and/or by further dehydration. Water content data are important in order to determine and define the dehydration requirements of acid gas injectates. Prior to this work, there were no water content data for H2S at hydrate forming conditions because of the difficulties in measuring low concentration of water above hydrates and high H2S toxicity. In this study, we report the water content of pure H2S in the hydrate forming regions from p = 4.178 to 20.572 MPa and T = 247.65 to 298.28 K using tunable diode laser spectroscopy. The measured data show a relative water content difference of ca. 2.5% from the model reported in this work using the Sloan et al. (1976), and van der Waal & Platteeuw (1959) equations for the hydrate phase, and the fluid phase model of Bernard et al. (2012).

中文翻译:

与水合物相平衡的液态 H2S 的水含量

摘要 含有 H2S 的酸性气体注入是一种管理大气硫排放的策略,其中硫回收在某些地方可能不可行或不经济。除了在潮湿环境中的毒性和腐蚀性外,H2S 在有水的情况下会形成高温水合物,这会导致诸如运输管道或注入井口堵塞等问题。在输送到注入之前,液态水在每个压缩循环之前和/或通过进一步脱水从级间吸入洗涤器内的注入物中去除。含水量数据对于确定和定义酸性气体注入的脱水要求很重要。在这项工作之前,由于难以测量水合物之上的低浓度水和高 H2S 毒性,因此没有水合物形成条件下 H2S 的水含量数据。在这项研究中,我们使用可调二极管激光光谱报告了水合物形成区域中纯 H2S 的水含量,从 p = 4.178 到 20.572 MPa,T = 247.65 到 298.28 K。测量数据显示相对含水量差异约为 使用 Sloan 等人在这项工作中报告的模型的 2.5%。(1976) 和 van der Waal & Platteeuw (1959) 水合物相的方程,以及 Bernard 等人的流体相模型。(2012)。测量数据显示相对含水量差异约为 使用 Sloan 等人在这项工作中报告的模型的 2.5%。(1976) 和 van der Waal & Platteeuw (1959) 水合物相的方程,以及 Bernard 等人的流体相模型。(2012)。测量数据显示相对含水量差异约为 使用 Sloan 等人在这项工作中报告的模型的 2.5%。(1976) 和 van der Waal & Platteeuw (1959) 水合物相的方程,以及 Bernard 等人的流体相模型。(2012)。
更新日期:2021-02-01
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