Related Experiment Video
Updated: Jun 14, 2025

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
Published on: December 5, 2019
Simultaneous Adsorption and Purification of Low-Concentration SO2 and H2S
Xiaoli Cao1, Lin Zhang1, Qun Cui1
1College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
None:
The simultaneous adsorption and removal of low concentrations of SO2 and H2S using experimental and simulation methods were investigated in this paper. The adsorption breakthrough performance of the single-component SO2 or H2S was determined in the activated carbon fixed-bed test. Langmuir and extended Langmuir equations in the Aspen adsorption module were used to describe the adsorption equilibrium of the single and bi-component SO2 and H2S system, respectively. The effects of gas hourly space velocity (GHSV) and temperature on the dynamic adsorption process of the bi-component SO2/H2S system were investigated. The concentration distribution and adsorption capacity of SO2/H2S in the bed were simulated. The results showed that the simulation for the single-component breakthrough curves of SO2 or H2S agreed well with the experimental data. It indicated that the model and simulation yielded engineering acceptable accuracy. For the bi-component adsorption, the competitive adsorption effect was observed, with H2S as the weakly adsorbed component and SO2 as the strongly adsorbed component. The dynamic adsorption process showed the sequence of initial adsorption, breakthrough, replacement, and equilibrium. The breakthrough curves were characterized by the distinct hump (roll-up) for H2S, resulting from the replacement effect. The influence of GHSV and the temperature on the dynamic adsorption process were investigated, revealing that the lower velocity and temperature enhanced the adsorption. This work might be used for the design and optimization of adsorption bed for the simultaneous removal of SO2 and H2S in Claus tail gas.
More Related Videos
08:37Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection
Published on: December 10, 2015
07:34Author Spotlight: Scaling Microalgal Biotechnology for Enhanced Biomethane Production
Published on: March 22, 2024
Related Concept Videos
Precipitation and Co-precipitation
Supercritical Fluid Chromatography
SFC utilizes a supercritical fluid mobile phase,...
Preparation and Reactions of Sulfides
Preparation and Reactions of Thiols
Sublimation