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Yachun Ren,Yueyang Xu,Erjian Huang,Peng Zhang,Yongping Zeng 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.119 No.-
Adsorption desulfurization is a very effective method to remove thiophenic compounds from fuels. The metal–organic frameworks (MOFs) have emerged as a new type of desulfurization adsorbents because of their porous nature and large specific surface area. In this study, Cu2+ was covalently introduced into the UiO-66 framework at the defective sites by the solvothermal method. Further, the π-complexation adsorbent UiO-66-Cu(I) containing Cu+ for adsorption desulfurization was synthesized by the methanol vapor-induced reduction. The adsorption performance was tested for the removal of thiophene from the model fuels with different sulfur concentrations. In comparison with the pristine UiO-66, the adsorbent UiO-66-Cu(I) has a higher adsorption capacity for thiophene, reaching 14.8 mg S/g. The competitive adsorption results indicated that UiO-66-Cu(I) has good selectivity for thiophene in the presence of aromatic compounds. From the recycling experiments, this adsorption still has the 86 % of the initial capacity after four cycles, indicating that the adsorbent has a good recycling performance.
Yuan-Bo Shi,Jian-Hui Wang,Xiaoke Fang,Yueyang Huang,Shu-Sheng Gu 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.1
In this paper, the problem of robust mixed H2/H∞ control is studied for an uncertain wireless sensornetwork (WSN) systems with random time delay, packet loss and sensor faults. A system model is establishedbased on the characteristics of uncertain time delay and packet loss in WSN. In this model, system uncertaintiesare represented by random time delay and stochastic packet loss, which are described by a Markov chain. Byusing a Lyapunov-Krasovskii function, a mode-dependent mixed H2/H∞ controller is designed to guarantee boththe stochastic stability of the closed-loop system and the prescribed H2, H∞ control performances. The sufficientconditions for the existence of the controller are proved by a series of Linear Matrix Inequalities (LMIs). If theseLMIs are feasible, the mode-dependent mixed H2/H∞ controller can be obtained. Matlab LMI toolbox is used tocalculate the control law. Finally, a numerical example and its simulation results demonstrated the effectiveness ofthe proposed method