scholarly journals Crude oil removal using Calotropis procera

BioResources ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 5246-5263
Author(s):  
Raoni Batista dos Anjos ◽  
Larissa Sobral Hilário ◽  
Henrique Borges de Moraes Juviniano ◽  
Djalma Ribeiro da Silva
Keyword(s):  
Crude Oil ◽  
Absorption Efficiency ◽  
Absorption Capacity ◽  
High Availability ◽  
Calotropis Procera ◽  
Oil Absorption ◽  
Absorption Property ◽  
Oil Removal ◽  
Hydrothermal Conditions ◽  
Renewable Material

Calotropis procera (CP) fiber is a natural and renewable material with great lumen and hydrophobic-oleophilic characteristics, providing it with a good oil absorption capacity. In order to increase the absorption efficiency of organic oils and solvents, CP fiber was treated with either 0.1 M NaOH (CPNaOH), 1% NaClO2 (CPNaClO2), or hydrothermal conditions (CPHT) in an effort to improve its ability to remove crude oil from leaks or spills. The fibers were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with field emission (SEM-FEG), and wettability for water and diesel. The fibers CPHT, CPNaOH, and CPNaClO2 showed excellent hydrophobic-oleophilic properties and good crude oil absorption capacity in water 99.2 g/g, 103.9 g/g, and 92.0 g/g. The absorption after 60 min for most fibers in dry systems or with a layer of oil floating on water exceeded 90% of its absorption capacity for the time of 1440 min. The CPNaOH after 6 runs absorbed 445.8 g of crude oil per gram of fiber. Based on the results, the treated fibers can be considered an alternative for the removal of oil from leaks and spills due to the high availability and excellent absorption property for various oils.

scholarly journals Evaluation of Thermally Treated Calotropis Procera Fiber for the Removal of Crude Oil on the Water Surface

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3894
Author(s):  
Sobral Hilário ◽  
Batista dos Anjos ◽  
Borges de Moraes Juviniano ◽  
da Silva
Keyword(s):  
Crude Oil ◽  
Sorption Capacity ◽  
Low Cost ◽  
Water Layer ◽  
Petroleum Products ◽  
Calotropis Procera ◽  
Oil Removal ◽  
Oil Sorption ◽  
Static Systems ◽  
Thermally Treated

Biosorbents have been highlighted as an alternative method for the removal of contaminants from spills or leaks of oil and its derivatives, since they are biodegradable, are highly available, low-cost, and have a good sorption capacity. This research investigated the sorption capacity of Calotropis procera fiber in natura (CP) and thermally treated (150 °C and 200 °C) for crude oil removal and recovery. The oil sorption tests were carried out in a dry and water (layer) static systems. The assays revealed that CP fiber has excellent hydrophobic-oil properties and good crude oil sorption capacity, about 75 times its own weight (76.32 g/g). The results of the treated fibers, CPT150 and CPT200, showed oil sorption capacities (in 24 h) higher than CP, between 94.31–103.37 g/g and 124.60–180.95 g/g, respectively. The results from sample CPT200 showed that it can be an excellent biosorbent for the removal of crude oil and other derivatives due to its high hydrophobicity, great reuse/resorption capacity, and ability to retain oil within the fiber lumens. Thus, it can be applied in the recovery, cleaning, and removal of petroleum products and its derivatives from spills and leaks in the future.

The effect of sugar beet fiber addition on the chemical properties of tortilla chips

2012 ◽  
pp. 385-388 ◽  
Author(s):  
Azadeh Saadatmandi ◽  
Mohammad Elahi ◽  
Reza Farhoosh ◽  
Mahdi Karimi
Keyword(s):  
Sugar Beet ◽  
Water Absorption ◽  
Protein Content ◽  
Chemical Properties ◽  
Absorption Capacity ◽  
Ash Content ◽  
Oil Absorption ◽  
Water Absorption Capacity ◽  
Overall Acceptability ◽  
Tortilla Chips

The incorporation of sugar beet fiber (0–5%) to tortilla chips and the effects on the chemical and sensory properties were studied. Addition of sugar beet fiber (SBF) led to an increasing of water absorption capacity, ash content and darkness while lowering the protein content and oil absorption. Sensory evaluation showed that the overall acceptability of tortilla chips reduces if adding more than 2% SBF.

Physico-Chemical Characteristics of Sapota (Chikoo) Powder based Value Added Pasta Product using Semolina (Suji) and Maida

2020 ◽  
Vol 7 (04) ◽  
Author(s):  
SATYA NARAYAN SINGH ◽  
RAJESH G BURBADE ◽  
HITESH SANCHAVAT ◽  
P S PANDIT
Keyword(s):  
Bulk Density ◽  
Crude Protein ◽  
Water Solubility ◽  
Value Added ◽  
Absorption Capacity ◽  
Oil Absorption ◽  
Minimum Value ◽  
Maximum Value ◽  
Physico Chemical ◽  
Specific Length

The cereals of today are more nutritious and healthful than ever before. Cereals processing is one of the oldest and the most essential part of all food technologies. Pasta products and noodles have been staple foods since ancient times in many countries all over the world. In this study pasta formulation was substituted with blending sapota powder in different proportions (4 levels i.e. 0%, 10%, 20%, 30%) into semolina and maida flour separately. Pasta products were prepared using eight different formulations and adding water (approximately 31% of total weight) in DOLLY pasta extruder machine. All the samples were evaluated for physical properties: specific length (mm/g), bulk density (kg/m3), specific density (kg/m3) and porosity (%); functional properties: water absorption index (%), water solubility index (%) and oil absorption capacity (ml/g) and nutritional compositions: moisture (%), crude protein (%), fat (%) and carbohydrate (%). Highest specific length 36.20 mm/g was observed for T5 treatment, low bulk density 368.10 kg/m3 was observed for T5 and highest porosity 9.24% was found for T1 treatment. The maximum WAI, WSI values 325.83%, 17.33% respectively was observed for T1 treatment and minimum value of oil absorption capacity 1.06 ml/g for T8 treatment. The moisture content of dried pasta products was found in the range of 6 to 7%. The maximum value of crude protein 13.07% was found for T5 and minimum value 8.81% for T4 treatments. The fat contents were varied from 1.02% to 1.28 %. The maximum value of carbohydrate was 76.20% for T1 and minimum value 65.41% for T8.

scholarly journals Highly efficient reusable superhydrophobic sponge prepared by a facile, simple and cost effective biomimetic bonding method for oil absorption

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiaqi Wang ◽  
Yan Chen ◽  
Qinyao Xu ◽  
Miaomiao Cai ◽  
Qian Shi ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Absorption Capacity ◽  
Oil Absorption ◽  
Water Contact ◽  
Water Separation ◽  
Highly Efficient ◽  
Study Results ◽  
Different Types ◽  
Modification Method ◽  
Bonding Method

AbstractSuperhydrophobic sponges have considerable potential for oil/water separation. Most of the methods used for superhydrophobic modification of sponges require toxic or harmful solvents, which have the drawbacks of hazardous to environment, expensive, and complex to utilize. Moreover, the hydrophobic layer on the surface of sponge is often easily destroyed. In this paper, a highly efficient superhydrophobic sponge with excellent reusability was developed by using a facile, simple and environmentally friendly dopamine biomimetic bonding method. Different types of sponges, such as melamine, polyethylene or polyurethane sponge wastes, were used as raw materials to prepare superhydrophobic sponges, which possess the advantages of inexpensive and abundant. The effects of different dopamine polymerization time and different hydrophobic agent dosage on the hydrophobicity and oil absorption capacity of melamine sponges were optimized. The study results showed that the water contact angle of the superhydrophobic sponge could reach 153° with excellent organic solvent absorption capacity of 165.9 g/g. Furthermore, the superhydrophobic sponge retained approximately 92.1% of its initial absorption capacity after 35 reutilization cycles. More importantly, the dopamine biomimetic bonding superhydrophobic modification method can be used for different types of sponges. Therefore, a universally applicable, facile, simple and environmentally friendly superhydrophobic modification method for sponges was developed.

scholarly journals Optimization of Crude Oil and PAHs Degradation by Stenotrophomonas rhizophila KX082814 Strain through Response Surface Methodology Using Box-Behnken Design

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Praveen Kumar Siddalingappa Virupakshappa ◽  
Manjunatha Bukkambudhi Krishnaswamy ◽  
Gaurav Mishra ◽  
Mohammed Ameenuddin Mehkri
Keyword(s):  
Response Surface Methodology ◽  
Crude Oil ◽  
Response Surface ◽  
Oxygen Demand ◽  
Inoculum Size ◽  
Coefficient Of Determination ◽  
Oil Removal ◽  
Box Behnken Design ◽  
Stenotrophomonas Rhizophila ◽  
Crude Oil Removal

The present paper describes the process optimization study for crude oil degradation which is a continuation of our earlier work on hydrocarbon degradation study of the isolate Stenotrophomonas rhizophila (PM-1) with GenBank accession number KX082814. Response Surface Methodology with Box-Behnken Design was used to optimize the process wherein temperature, pH, salinity, and inoculum size (at three levels) were used as independent variables and Total Petroleum Hydrocarbon, Biological Oxygen Demand, and Chemical Oxygen Demand of crude oil and PAHs as dependent variables (response). The statistical analysis, via ANOVA, showed coefficient of determination R2 as 0.7678 with statistically significant P value 0.0163 fitting in second-order quadratic regression model for crude oil removal. The predicted optimum parameters, namely, temperature, pH, salinity, and inoculum size, were found to be 32.5°C, 9, 12.5, and 12.5 mL, respectively. At this optimum condition, the observed and predicted PAHs and crude oil removal were found to be 71.82% and 79.53% in validation experiments, respectively. The % TPH results correlate with GC/MS studies, BOD, COD, and TPC. The validation of numerical optimization was done through GC/MS studies and   % removal of crude oil.

The Structure and Acoustic Properties of Aluminum Foams by Gas Injection Method

2010 ◽  
Vol 146-147 ◽  
pp. 1049-1055
Author(s):  
Xue Liu Fan ◽  
Xiang Chen ◽  
Yan Xiang Li
Keyword(s):  
Sound Absorption ◽  
Gas Injection ◽  
Optical Microscope ◽  
Absorption Efficiency ◽  
Absorption Capacity ◽  
Acoustic Properties ◽  
Analytical Models ◽  
Aluminum Foams ◽  
Injection Method ◽  
Membrane Vibrations

The acoustic properties of aluminum foams by gas injection method were studied experimentally. The micro and macro structure of aluminum foam with closed cells were observed by optical microscope (OM) and scanning electron microscope (SEM). The special structure of the closed-pores of the aluminum foams have leaded to good performance of the sound absorption based on three mechanisms: Helmholtz resonance, cell wall vibration and viscous and thermal effects. The effect of cell sizes, thickness of aluminum foams has been investigated and the cavity set at the back of the foam samples on the sound absorption efficiency of the foams has been measured. Analytical models of membrane vibrations were used to explain the sound absorption capacity of the foams.

Industrial Application of Nickel Tallate Catalyst During Cyclic Steam Stimulation in Boca De Jaruco Reservoir

2021 ◽  
Author(s):  
Alexey V. Vakhin ◽  
Irek I. Mukhamatdinov ◽  
Firdavs A. Aliev ◽  
Dmitriy F. Feoktistov ◽  
Sergey A. Sitnov ◽  
...  
Keyword(s):  
Crude Oil ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Industrial Application ◽  
Laboratory Scale ◽  
Catalyst Precursor ◽  
Hydrothermal Conditions ◽  
Cyclic Steam Stimulation ◽  
Steam Stimulation

Abstract A nickel-based catalyst precursor has been synthesized for in-situ upgrading of heavy crude oil that is capable of increasing the efficiency of steam stimulation techniques. The precursor activation occurs due to the decomposition of nickel tallate under hydrothermal conditions. The aim of this study is to analyze the efficiency of in-situ catalytic upgrading of heavy oil from laboratory scale experiments to the field-scale implementation in Boca de Jaruco reservoir. The proposed catalytic composition for in-reservoir chemical transformation of heavy oil and natural bitumen is composed of oil-soluble nickel compound and organic hydrogen donor solvent. The nickel-based catalytic composition in laboratory-scale hydrothermal conditions at 300°С and 90 bars demonstrated a high performance; the content of asphaltenes was reduced from 22% to 7 wt.%. The viscosity of crude oil was also reduced by three times. The technology for industrial-scale production of catalyst precursor was designed and the first pilot batch with a mass of 12 ton was achieved. A «Cyclic steam stimulation» technology was modified in order to deliver the catalytic composition to the pay zones of Boca de Jaruco reservoir (Cuba). The active forms of catalyst precursors are nanodispersed mixed oxides and sulfides of nickel. The pilot test of catalyst injection was carried out in bituminous carbonate formation M, in Boca de Jaruco reservoir (Cuba). The application of catalytic composition provided increase in cumulative oil production and incremental oil recovery in contrast to the previous cycle (without catalyst) is 170% up to date (the effect is in progress). After injection of catalysts, more than 200 samples from production well were analyzed in laboratory. Based on the physical and chemical properties of investigated samples and considering the excellent oil recovery coefficient it is decided to expand the industrial application of catalysts in the given reservoir. The project is scheduled on the fourth quarter of 2021.

Comparative studies of the physicochemical and functional properties of sweet potato (Ipomoea batatas L.) flour

Food Research ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 145-152
Author(s):  
M. Hasmadi ◽  
M. Merlynda ◽  
A.H. Mansoor ◽  
I. Salwa ◽  
M.K. Zainol ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Functional Properties ◽  
Ipomoea Batatas ◽  
Absorption Capacity ◽  
Oil Absorption ◽  
Potato Flour ◽  
Foaming Capacity ◽  
Sweet Potato Flour ◽  
Physicochemical And Functional Properties ◽  
Dietary Fibre Content

This study aimed to determine the proximate compositions and functional properties of sweet potato flour from different varieties cultivated in Sabah, Malaysia, namely Jepun, Kairot and Kaladi. The results showed that the moisture content of all flour samples was below 14%. The fat and protein content of Jepun sweet potato variety were significantly different (p<0.05) as compared with Kairot and Kaladi sweet potato varieties. The ash and dietary fibre content of Kairot sweet potato flour were higher (p<0.05) compared to Jepun and Kaladi flours. In addition, Kaladi sweet potato had the highest carbohydrate content (82%). There were significant differences (p<0.05) in the values of L*, a* and b* for all sweet potato flours. The Jepun sweet potato flour had the highest foaming capacity, water absorption capacity, oil absorption capacity, swelling power and viscosity. Rapid Visco analyser revealed that significant differences were observed for pasting parameters such as peak viscosity, trough viscosity, breakdown viscosity, final viscosity and setback viscosity. The gelatinisation properties showed that Kairot sweet potato flour had the highest onset temperature, conclusion temperature and enthalpy while Kaladi sweet potato flour had the highest peak temperature.

scholarly journals Appling Recyclable Waste Tire for Crude Oil Absorption

2018 ◽  
Vol 08 (01) ◽  
Author(s):  
Zahra Zamiraei ◽  
Mohammadreza Golriz ◽  
Mehran Parsa
Keyword(s):  
Crude Oil ◽  
Oil Absorption ◽  
Waste Tire
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