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Systematic investigation of so_(2) adsorption and desorption by porous powdered activated coke:Interaction between adsorption temperature and desorption energy consumption

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Chinese Journal of Chemical Engineering 2022年第8期35卷 140-148页

作者： Jun Li Liqiang Zhang Xiao Zhu Mengze Zhang Tai Feng Xiqiang Zhao Tao Wang Zhanlong song Chunyuan Ma National Engineering Laboratory for Reducing Emissions from Coal Combustion Engineering Research Center of Environmental Thermal Technology of Ministry of EducationShandong Key Laboratory of Energy Carbon Reduction and Resource UtilizationSchool of Energy and Power EngineeringShandong UniversityJinan 250061China College of Mechanical and Electronic Engineering Shandong University of Science and TechnologyQingdao 266590China

Porous carbon materials have been widely used for the removal of so_(2) from flue *** main objective of this work is to clarify the effects of adsorption temperature on so_(2) adsorption and desorption energy ***-based porous powdered activated coke(PPAC)prepared in the drop-tube reactor was used in this *** N_(2) adsorption measurements and Fourier transform infrared spectrometer analysis show that PPAC exhibits a developed pore structure and rich functional *** experimental results show that with a decrease in adsorption temperature in the range of 50–150℃,the adsorption capacity of so_(2) increases linearly;meanwhile,the adsorption capacity of H_(2)O increases,resulting in the increase in desorption energy consumption per unit mass of *** processes of so_(2) and H_(2)O desorption were determined by the temperature-programmed desorption test,and the desorption energies for each species were *** the energy consumption per unit of desorption and the total amount of adsorbent,the optimal adsorption temperature yielding the minimum total energy consumption of regeneration is *** study systematically demonstrates the effect of adsorption temperature on the adsorption–desorption process,providing a basis for energy saving and emission reduction in desulfurization system design.

关键词： Activated coke so2 adsorption Desorption energy consumption Optimal adsorption temperature

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Study on structural characteristics and adsorption performance of ultrasonic treated Mn-containing sulfur transfer agent

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Journal of Energy Chemistry 2014年第6期23卷 789-794页

作者： Ruiyu Jiang Jiling Zhang Lei Zhang Qinfang Zhang Guihua Hou Ning Xu Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology East China Design Branch China Petroleum Engineering Construction Corporation College of Chemistry Chemical Engineering and Environmental Engineering Liaoning Shihua University

To prepare manganese-containing spinel sulfur transfer agent with acid peptization, ultrasonic wave is used for the first time to modify the structure of sulfur transfer agent in this work. Mini fixed bed reactor was used to investigate the effect of ultrasonic power, time and temperature on the structure and oxidation adsorption performance of sulfur transfer agent and the adsorption kinetics and mechanism of so2 were analyzed. SEM, TEM, XRD and N2 adsorption-desorption techniques were employed to characterize and analyse the function of sulfur transfer agent. The results indicated that manganese-containing spinel is a kind of promising sulfur transfer agent and exhibits higher sulfur capacity and desulfurization degree under the selected conditions of the ultrasonic wave power of 60%, and with the treatment period for 3 h at a temperature of 60 ℃.

关键词： ultrasonic treatment Mn-containing sulfur transfer agent so2 adsorption FCC unit mixed oxide

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