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Influence of biodiesel on corrosion by bacillus megaterium
Pusparizkita Y.M.a, Setiadi T.a, Harimawan A.a
a Department of Chemical Engineering, Institut Teknologi Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© Corrosion and Prevention 2017. All rights reserved.Biofuels such as biodiesel have preliminary been used as an alternative source of energy due to the diminishing of petroleum reserves. It has been currently mixed with diesel oil until 30% v/v. However, the hygroscopic nature of biodiesel makes it more susceptible to contamination by microorganisms. The commonest type of microorganism is SRB. However, recent studies have found other types of bacteria, namely, Bacillus sp., which may contribute biocorrosion in tanks containing hydrocarbon product. In this work, the presence of B. megaterium could promote the corrosion rate up to 10 times compared to electrochemical corrosion rate. The higher concentration of biodiesel in diesel oil made increasing the growth of bacteria in the biofilm and the rate of corrosion. Variations of biodiesel concentration did not give significant effect on the biofilm composition and the corrosion products. The biofilm composition formed group containing alcohol (O-H), fatty acids (C-H), proteins (N-H), amides (C-N), carbonyl and carboxylates, while corrosion products formed by B. megaterium containing Fe2O3 and Fe3O4. Accordingly, this bacteria formed pitting corrosion.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Alternative source,Bacillus megaterium,Biofilm composition,Corrosion products,Fatty acid methyl ester,Hydrocarbon product,Hygroscopic nature,Rate of corrosions[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Bacteria,Biofilm,Biofuels,Corrosion,Fatty acid methyl esters,Petroleum products[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors would like to express their special thanks to PMDSU Scholarship which has provided research fund, Chemical Engineering Program of Institut Teknologi Bandung which has provided facilities and infrastructure in the implementation of this research, staff of Microbiology and Technology Laboratory of Bioprocess for the assistance that has been given in making research.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]