Synthesis and charactrization of ZnO doped CMK and Investigation of Removal of H2S from Model Fuel via RSM Methodology

Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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NFSI01_221

تاریخ نمایه سازی: 17 آبان 1396

Abstract:

H2S is the most hazardous compound of sulfur containing hydrocarbons in petroleum. It has many worth effects such as high acidity, corrosion, environmental impact, fatal effect and very bad odor [1–3]. There are many strategies for the removal of H2S from different mediums, including water, air, petroleum and gas industry [4–5]. In the present work, SBA-3 was synthesized using sodium silicate solution and CTAB in acidic media via soft template approach. The calcined silica was used as hard template for the synthesis of CMK using sucrose, H2SO4 and Zn (NO3)2 as metal source. Carbonization of carbon source was done via programmed heating up to 700 °C. The synthesize material was characterized using SEM, XRD and nitrogen sorption. The obtained results showed that mesoporous structure of SBA-3 copied to the structure of CMK. Presence of d100 diffraction peaks imply that the hexagonal structure was formed in the corresponding sample. Furthermore, the former peak is also visible in the CMK containing ZnO. Nitrogen sorption isotherms is belong to class IV according to IUOPAC nomenclature. This means that the synthesized sample has mesoporous structure which in line it that find out from XRD. Surface area of the parent material and metal containing materials was too high, implying that the doping of CMK with metal is successful. The BET of parent CMK was about 800 m2/g. At the next step, effect of on the removal of H2S from model gas was studied. The parameters including space velocity, metal content and temperature had significant effect on the adsorption of H2S. It can be said that the proposed synthesis method led to the formation of ordered mesoporous carbon, using the very cheap raw materials, i.e. sodium silicate solution and sucrose. ZnO nanoparticles were also adsorbed H2S, means accessibility of them in an insitu synthesis method.

Authors

Robabeh Goli

Science and research branch, Islamic Azad university, Tehran, Iran

Ali Akbar Seifkordi

Science and research branch, Islamic Azad university, Tehran, Iran

Sahar Baniyaghoob

Science and research branch, Islamic Azad university, Tehran, Iran

Amir Vahid

Research Institute of petroleum industry, Tehran, Iran.