Oil Extraction Production Research Articles

Rational Use of Waste from Oil Extraction Production — Bleaching Clay Waste

The results of studies of the physic-chemical and sorption properties of bleaching clay waste, the prospects for its use for the purification of polluted waters, as well as the possibility of subsequent disposal of used materials are presented. Using the method of low-temperature nitrogen adsorption-desorption, it was found that the studied bleaching clay waste has a specific surface area of 185.53 m2/g and has a mesoporous structure. The sorption properties of clay waste were studied and it was found that at a dosage of 1.5 g/dm3, the purification efficiency of the standard solutions containing Cu2+ ions with a concentration of 10 mg/dm3 is 96.7 %. It has been found that the maximum sorption capacity, determined under static conditions for clay fired at a temperature of 350 °C, is 0.41 mmol/g. The use of bleaching clay as filler pigments in the manufacture of paints and varnishes has been proposed and demonstrated.

Method for assessing the efficiency of the use of a biological preparation in wastewater of oil extraction production

One of the promising ways to remove fats in the wastewater of food enterprises is the bioenzymatic technology for the decomposition of organic substances, including fats and vegetable oils, at local treatment facilities located directly at the enterprises. Bioenzymatic technologies for the decomposition and utilization of fats in wastewater are based on the use of microbial lipases and microorganisms capable of producing them. The experiment was carried out on the territory of the oil extraction plant in Bezenchuk for 18 days. Based on the samples taken, the concentration of triglycerides was revealed, the destructive ability was determined, as well as lipolytic activity after the introduction of the biological product.

Optimization of sunflower husk utilization methods using various ultrasonic treatment methods

The article considers the assessment of the impact of ultrasonic treatment under the influence of such parameters as pH of the environment, temperature, time and power on the chemical composition of sunflower husks as well as for waste disposal in oil extraction production with subsequent use in animal feeding in order to achieve a closed-loop economy model. Ultrasonic treatment with water at 20 °C, 15 minutes, 27 kHz increases the mass fraction of fat from 1.43% to 2.63% relative to other samples, with an increase in temperature to 70 °C, the mass fraction of crude protein increases by 5.31% and the mass fraction decreases crude fiber by 5.8% relative to control. The elemental profile of crushed sunflower husks changed with different models of ultrasonic treatment, in all samples there was an increase in the content of the mass fraction of calcium, the greatest difference was achieved in sample No. 2 times higher than control. The mass fraction of iron in almost all samples increased, the maximum value was in sample No. 5 (ultrasound treatment at 20 °C, 15 minutes, 27 kHz + lactic acid to pH – 4) by 24.9 mg/kg higher relative to the control. The impact of ultrasound on the samples, gives a decrease in the content of palmitoleic acid to 0.3% and an increase in stearic acid by 0.8% relative to the sample not subjected to ultrasonic treatment.

Use of vegetable oil refining waste to remove oil products from sewage

The relevance of the research is due to both problems arising from the pollution of surface water with oil products, and the possibility of expanding the range of effective sorbents through the use of industrial waste. The article presents the results on the selection of purification parameters for model effluents containing industrial oils as a type of oil product. Purification was carried out by a sorbent made on the basis of the waste formed during the purification of vegetable oils from waxy impurities. The sorbent was obtained as a result of roasting secondary silica-containing raw materials of oil extraction production in a certain temperature range. It was revealed that the heat treatment of the waste leads to a partial burnout of the organics and the preservation of the paraffin fractions that make up the waxy impurities. Due to this, thermally modified waste becomes hydrophobic and oleophilic; contributes to an increase in oil absorption. In the course of the study, the influence of a number of factors was established, such as the temperature of waste roasting, the duration of contact of the sorbent and the purified medium, the mass of the sorbent, on the efficiency of the process of purifying model solutions from oil products.

Temperature modification of diatomite sludge of oil extraction production at obtaining a sorbent

One of the most widely used methods of water treatment is adsorption. The use of agricultural waste is of great interest in obtaining economical and efficient sorption materials. In this paper, the features of temperature modification of diatomite sludge are studied. Diatomite sludge is a multi-tonnage waste of oil extraction production formed during the purification of sunflower oil with diatomite. The kinetics of thermal activation of diatomite sludge at temperatures of 450, 500, and 600 °C was studied. It was found that the temperature of 450 °C is optimal for thermal modification of waste. In this case, part of the organic compounds is preserved, as with a further increase in temperature, they completely disintegrate into gaseous products. IR spectra and energy dispersion analysis were analyzed, and the structure and physical and chemical properties of diatomite and diatomite sludge were studied before and after heat treatment. It was found that the water extract of the samples, both initial and thermomodified, has a pH close to neutral. With an increase in the firing temperature, a small suspension effect is observed, which means the presence of a charge in the DSH particles in the aqueous medium, which can intensify the convergence of molecules with a positive charge with the surface of the sorbent. The development of methods for the secondary use of agricultural raw material processing waste for wastewater treatment allows solving comprehensively the problems of reducing the anthropogenic load on natural ecosystems, is an urgent task of modern society for environmental protection, and has scientific and practical significance.

Quality Management Enriching Food Systems from Domestic Raw Materials

The state policy in Russian Federation in the field of nutrition is aimed at the development of advanced food technologies and the development of food-enriching systems of functional orientation. Rheological properties of model systems with different moisture content on the basis of wheat germ cake as a by-product of flour and oil extraction production were studied. In this paper we investigate a model food system based on wheat wheat germ oil cake of various degrees of hydration with a moisture content in the range of 59-68 %. Rheological properties of food systems were controlled with the help of informationmeasuring system including the device “structure Meter ST-2”. Calculation of normal stress showed that with the increase in the mass of water in food systems in the extrusion mass through a die, the mechanical stresses were reduced.

Применение карбонизованного углеродсодержащего отхода маслоэкстракционного производства для сорбционной очистки сточных вод от эмульгированных нефтепродуктов

Применение карбонизованного углеродсодержащего отхода маслоэкстракционного производства для сорбционной очистки сточных вод от эмульгированных нефтепродуктов

Modified jet flotation in oil (petroleum) emulsion/water separations

This work presents results of a rapid emulsified oil (petroleum) removal from water by flocculation followed by flotation in a modified jet (Jameson) cell (MJC). The modification is such that the downcomer was sealed at the bottom (by a concentric blind-end tube) to allow floated particles to enter immediately into the frothy phase after the capture of the oily flocs by the bubbles. Also, a packed bed (crowder) was placed at the upper part of the concentric tube to stabilize the froth and facilitate the rise of the oil floc/bubble aggregates. The work was divided into two parts: a detailed laboratory study (1.3 m 3/h) and a pilot plant trial in an offshore platform. Parameters studied were flocculation (type and concentration of polymer), oil concentration, oil droplets size distribution and flotation cell design. Results of laboratory studies showed mean separation efficiencies of the order of 80% when used as a conventional jet cell (CJC) with feed emulsions (droplets size of about 20 μm) ranged between 100 and 400 mg/L petroleum concentration. The oil removal increased up to 85% in the MJC. These studies allowed optimizing the design and process parameters: chemical, physico-chemical and operating. A MJC (5 m 3/h) was then projected, built and installed in an offshore platform, after the oil extraction–production point. At optimal conditions, in a single flotation stage, discharges varied between 20 and 30 mg/L oil concentration or 81% removal at 24.7 m 3/h m 2 loading capacity. Because this jet cell operates with a high air hold-up, it presented a very good efficiency (capture of oil droplets by bubbles) at low residence time (high-rate separation) and showed to be simple, compact and easy to operate. It is believed that the MJC has a great potential for treating polluted oily high flow wastewaters, at high separation rate. Results and mechanisms involved are discussed in terms of interfacial phenomena and design factors.