Oil Recovery From Fuel Oil Storage Tank Sludge Using Biosurfactants

Lima, Tânia M. S.; Fonseca, Andréia F.; Leão, Bruna A.; Mounteer, Ann Honor

doi:10.4172/2155-6199.1000125

Cited by 17 publications

(2 citation statements)

References 15 publications

(18 reference statements)

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“…Lima et al (2011) evaluated the removal of oily sludge through the use of biosurfactants obtained from five bacterial isolates from oil contaminated sites. Biosurfactants use led to a reduction in viscosity and promoted the formation of oil-water emulsions leading to easier sludge pumping and emulsion breaking for better crude oil recovery.…”

Section: Main Applications Of Biosurfactants In the Petroleum Industrymentioning

confidence: 99%

Biosurfactants: Promising Molecules for Petroleum Biotechnology Advances

et al. 2016

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The growing global demand for sustainable technologies that improves the efficiency of petrochemical processes in the oil industry has driven advances in petroleum biotechnology in recent years. Petroleum industry uses substantial amounts of petrochemical-based synthetic surfactants in its activities as mobilizing agents to increase the availability or recovery of hydrocarbons as well as many other applications related to extraction, treatment, cleaning, and transportation. However, biosurfactants have several potential applications for use across the oil processing chain and in the formulations of petrochemical products such as emulsifying/demulsifying agents, anticorrosive, biocides for sulfate-reducing bacteria, fuel formulation, extraction of bitumen from tar sands, and many other innovative applications. Due to their versatility and proven efficiency, biosurfactants are often presented as valuable versatile tools that can transform and modernize petroleum biotechnology in an attempt to provide a true picture of state of the art and directions or use in the oil industry. We believe that biosurfactants are going to have a significant role in many future applications in the oil industries and in this review therefore, we highlight recent important relevant applications, patents disclosures and potential future applications for biosurfactants in petroleum and related industries.

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Section: Main Applications Of Biosurfactants In the Petroleum Industrymentioning

confidence: 99%

Biosurfactants: Promising Molecules for Petroleum Biotechnology Advances

et al. 2016

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“…Dietzia maris is a Gram-positive, aerobic, non-sporeforming soil bacterium which forms cocci that can develop into short rods [4]. In addition to the possibility of playing a role in wastewater treatment and its presence in activated sludge [5], it has also been reported that D. maris has a potential application in bioremediation of soil environments [6] and as a producer of the antioxidant canthaxanthin [7]. Dietzia sp.…”

Section: Introductionmentioning

confidence: 99%

Discovery of a cell wall porin in the mycolic‐acid‐containing actinomycete Dietzia marisDSM 43672

et al. 2014

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The cell wall of the Gram‐positive mycolic‐acid‐containing actinomycete Dietzia maris DSM 43672 was found to contain a pore‐forming protein, as observed from reconstitution experiments with artificial lipid bilayer experiments in the presence of cell wall extracts. The cell wall porin was purified to homogeneity using different biochemical methods and had an apparent molecular mass of about 120 kDa on tricine‐containing SDS/PAGE. The 120 kDa protein dissociated into subunits with a molecular mass of about 35 kDa when it was heated to 100 °C in 8 m urea. The 120 kDa protein, here named PorADm, formed ion‐permeable channels in lipid bilayer membranes with a high single‐channel conductance of about 5.8 nS in 1 m KCl. Asymmetric addition of PorADm to lipid bilayer membranes resulted in an asymmetric voltage dependence. Zero‐current membrane potential measurements with different salt solutions suggested that the porin of D. maris is cation‐selective because of negative charges localized at the channel mouth. Analysis of the single‐channel conductance using non‐electrolytes with known hydrodynamic radii indicated that the diameter of the cell wall channel is about 2 nm. The channel characteristics of the cell wall porin of D. maris are compared with those of other members of the mycolata. They share some common features because they are composed of small molecular mass subunits and form large and water‐filled channels. The porin was subjected to protein analysis by mass spectrometry but its sequence had no significant homology to any known porin sequences.

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