[01] Atefeh Hakimi, Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Sirjan, Iran; Department of Chemical Engineering, Sirjan Branch, Islamic Azad University, Sirjan, Iran. [02] Farshad Farahbod, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran.

The effect of low range temperature and pressure, initial concentration, interfacial velocity, the ratio of height to diameter of the bed and particle diameter on the outlet sulfur is investigated. Also, cost estimation due to pressure and temperature is presented. Results indicate on achieving the proper result of sulfur content in outlet to the initial sulfur lower than 0.012 at 1.7 atm, 35 C and ratio of height to diameter of packed bed is 3 which contains 50 nm nano carbon tubes.

Operating and Geometric Condition, Desulphurization, Efficiency, Novel Method

[01] Yuxiao Niu, Mingyang Xing, Baozhu Tian, Jinlong Zhang, 2012, “Improving the visible light photocatalytic activity of nano-sized titanium dioxide via the synergistic effects between sulfur doping and sulfation,’’ Applied Catalysis B: Environmen., 115–116 (5) pp. 253-260. [02] Rao Mumin, Song Xiangyun, Cairns Elton J., 2012, “Nano-carbon/sulfur composite cathode materials with carbon nanofiber as electrical conductor for advanced secondary lithium/sulfur cells,’’ J. Power Source., 205 (1), pp. 474-478. [03] Zhang Yongguang, Zhao Yan, Konarov Aishuak, Gosselink Denise, Soboleski Hayden Greentree, Chen P., 2013, “A novel nano-sulfur/polypyrrole/graphene nanocomposite cathode with a dual-layered structure for lithium rechargeable batteries,’’ J. Power Source., 241 (1), pp. 517-521. [04] Hosseinkhani M., Montazer M., Eskandarnejad S., Rahimi M.K., 2012, “Simultaneous in situ synthesis of nano silver and wool fiber fineness enhancement using sulphur based reducing agents,’’ Colloids and Surfaces A: Physicochem. Eng. Aspect., 415 (5), pp. 431-438. [05] Christoforidis Konstantinos C., Figueroa Santiago J.A., Fernández-García Marcos, 2012, “Iron–sulfur codoped TiO₂ anatase nano-materials: UV and sunlight activity for toluene degradation,’’ Applied Catalysis B: Environment., 117–118 (18), pp. 310-316. [06] Balouria Vishal, Kumar Arvind, Samanta S., Singh A., Debnath A.K., Mahajan Aman, Bedi R.K., Aswal D.K., Gupta S.K., 2013, “Nano-crystalline Fe2O3 thin films for ppm level detection of H₂S,’’ Sensors Actuators B: Chemical, 181, pp. 471-478. [07] Habibi R., Rashidi A. M., Towfighi Daryan J., Alizadeh A., 2010, "study of the rod –like and spherical nano ZnO morphology on H2s removal from natural gas". Appl. Surf. Sci., 257, pp. 434- 439. [08] Novochimskii II., Song CH., Ma X., Liu X., Shore L., Lampert J., Farrauto R. J., 2004, "Low temperature H₂S removal from steam containing gas mixtures with ZnO for fuel cell application. 1. ZnO particles and extrudates". Ene. Fuel., 18, pp. 576-591. [09] Habibi R., Towfighi Daryan J., Rashidi A.M., 2009, Shape and size-controlled fabrication of ZnO nanostructures using noveltemplates, J. Exp. Nanosci. 4 (1) 35-45. [10] Farahbod Farshad, Bagheri Narges, Madadpour Fereshteh, 2013, Effect of Solution Content ZnO Nanoparticles on Thermal Stability of Poly Vinyl Chloride, Journal of Nanotechnology in Engineerin and Medicine. 4 / 021002-1.