Petroleum Science >2019, Issue 2: 417-427 DOI: https://doi.org/10.1007/s12182-018-0287-1
Process design for gas condensate desulfurization and synthesis of nano-13X zeolite adsorbent: equilibrium and dynamic studies Open Access
文章信息
作者:Ghasem Bakhtiari, Hamid Ghassabzadeh, Sayed Javid Royaee, Majid Abdouss and Mansour Bazmi
作者单位:
Chemistry Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran,Refining Technology Development Division, Research Institute of Petroleum Industry, Tehran, Iran,Refining Technology Development Division, Research Institute of Petroleum Industry, Tehran, Iran,Chemistry Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran and Refining Technology Development Division, Research Institute of Petroleum Industry, Tehran, Iran
投稿时间:2018-03-11
引用方式:Bakhtiari, G., Ghassabzadeh, H., Royaee, S.J. et al. Pet. Sci. (2019) 16: 417. https://doi.org/10.1007/s12182-018-0287-1
文章摘要
This paper summarizes the results of a study of adsorption of sulfur compounds from a high-sulfur feed on improved spherical-shaped nano-AgX zeolite. For this purpose, the nano-AgX zeolite was initially synthesized and improved with silver compounds such as silver nitrate, and then it was utilized in the adsorption process. In order to investigate the equilibrium and dynamics of the adsorption process, adsorptive desulfurization of real feed (i.e., sour gas condensate from the South Pars gas field) was carried out in batch and continuous processes under several operating conditions; a temperature- dependent Langmuir isotherm model was used to fit the equilibrium data. The value of monolayer adsorption capacity (qm) and adsorption enthalpy (ΔH) were calculated to be 1.044 mmol/g and 16.8 kJ/mol, respectively. Furthermore, a detailed theoretical model was employed in order to model the breakthrough experiments. The results revealed that an increase in the feed flow rate and 1=T values will cause linear and exponential increase in the total mass transfer coefficient (ks). Isotherm and dynamic breakthrough models were found to be in agreement with the experimental data.
关键词
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Process design, Desulfurization, Dynamic adsorption, Gas condensate, Equilibrium