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The utilization of spent palm cooking oil for formulating oil-based drilling muds with excellent H_(2)S scavenging capability

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Petroleum Research 2024年第2期9卷 280-288页

作者： sagheer a.onaizi Department of Chemical Engineering and Interdisciplinary Research Center for Hydrogen and Energy StorageKing Fahd University of Petroleum&Minerals31261DhahranSaudi Arabia

In this study,a spent palm cooking oil-based mud with an excellent H_(2)S scavenging capability induced by the inclusion of a small quantity of potassium permanganate is formulated and tested for the first *** mud formulation,containing the spent palm oil as the continuous phase and water as the dispersed phase,respectively,was stabilized by Span 80 and rhamnolipid biosurfactant as primary and secondary emulsifiers,respectively,while hydrophobic zinc nanoparticles(NPs)were used as weighting *** results showed that H_(2)S scavenging capacity at the breakthrough time reached 182.4 g H_(2)S/barrel mud,which increased to 417.9 g H_(2)S/barrel mud at the saturation time,demonstrating the effective H_(2)S scavenging performance of the formulated *** spent palm oil-based mud(SPOBM)also showed a good flow behavior that could be well fitted using the Herschel-Bulkley and Casson *** effect of temperature on the apparent viscosity of the SPOBM has been investigated,and the fitting of the viscosity-temperature data provided an estimate of the activation energy as 23.53 kJ/*** findings reported in this article reveal the feasibility of transforming the spent/waste cooking oils into a valuable commodity for formulating greener drilling fluids with acceptable rheology and excellent H_(2)S scavenging performance.

关键词： Hydrogen sulfide(H_(2)S) Oil-based mud(OBM)drilling fluids Spent palm oil H_(2)S scavengers Rheology

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Effect of the degree of template removal from mesoporous silicate materials on their adsorption of heavy oil from aqueous solution

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Frontiers of Chemical Science and Engineering 2014年第4期8卷 488-497页

作者： Farouq TWAIQ M.S. NASSER sagheer A. onaizi Faculty of Engineering Computing and Science Swinbume University of Technology Kuching 93350 Malaysia Gas Processing Center College of Engineering Qatar University Doha P. O. Box 2713 Qatar School of Chemical Engineering and Advanced Materials Newcastle University Singapore 599489 Singapore School of Chemical Engineering and Advanced Materials Newcastle University Newcastle upon Tyne NE1 7RU UK

The key aim of this study is to evaluate the adsorption of heavy oil from aqueous solutions with different oil contents over mesoporous silicate materials having different surfactant template contents. The meso- porous silicate materials have been synthesized from tetraethylorthosilicate as a silica precursor and cetyltri- methylammonium bromide as a template using the sol-gel technique. Four samples were prepared by （1） totally removing the template using the calcination process, （2） partially removing the template via ethanol extraction, （3） partially removing the template via water extraction, and （4） keeping the template as synthesized, respectively. These four samples have been characterized using X-ray diffraction, nitrogen adsorption, thermal gravimetric ana- lysis and Fourier transformed infrared. The effect of the degree of template removal of these mesoporous materials for the oil removal has been investigated. The oil removal is inversely proportional to the surfactant content in the mesoporous material, being highest for the calcined sample but lowest for the as-synthesized sample. The kinetic of oil adsorption over the calcined material has been also studied and the data obtained fit well a second-order model.

关键词： adsorption heavy oil mesoporous silicatematerial kinetics template removal

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