Influence of natural additives and those synthesized by the Fischer-Tropsch method on the properties of petroleum bitumen and quality of floated asphalt

2011 ◽  
Vol 54 (1) ◽  
pp. 26-31 ◽  
Author(s):  
A. M. Syroezhko ◽  
M. A. Baranov ◽  
S. N. Ivanov ◽  
N. V. Maidanova
Keyword(s):  
Fischer Tropsch ◽  
Petroleum Bitumen ◽  
Natural Additives

scholarly journals METHODS FOR IMPROVING THE ADHESION PROPERTIES OF BITUMENS TO MINERAL MATERIALS

2020 ◽  
pp. 29-35
Author(s):  
Н. А. Страхова ◽  
П. С. Цамаева ◽  
А. А. Эльмурзаев
Keyword(s):  
Atmospheric Oxygen ◽  
Experimental Studies ◽  
Effect Of Temperature ◽  
Volatile Components ◽  
Processing Plant ◽  
Adhesion Properties ◽  
Gas Phases ◽  
Gas Processing ◽  
Petroleum Bitumen

Статья посвящена анализу и изучению различных способов получения нефтяных битумов и улучшения адгезионных свойств в различных минеральных материалах. На примере Астраханского газоперерабатывающего завода показана эффективность добавления присадок - азот-, серосодержащих веществ, элементной серы и др. для улучшения адгезионных свойств битумов к минеральным материалам. Проведен анализ воздействия перепада температур в летнее и зимнее время на вяжущие свойства битумов. Рассмотрен способ предварительной отгонки летучих компонентов из нефтей, что приводит к уменьшению содержания парафинонафтеновых углеводородов и улучшению качества получаемых битумов. В статье также приведены результаты экспериментальных исследований влияния окисления кислородом воздуха, повышения температуры процесса на пластичность битумов. Эффективность окисления битумов зависит от величины поверхности контакта между жидкой и газовой фазой. Ускорение процесса окисления достигается в 6-7 раз при хорошем перемешивании реагирующих фаз. The article also presents the results of experimental studies of the effect of oxidation with atmospheric oxygen, an increase in the process temperature on the plasticity of bitumen. The efficiency of bitumen oxidation depends on the size of the contact surface between the liquid and gas phases. Acceleration of the oxidation process is achieved 6-7 times with good mixing of the reacting phases.The article is devoted to the analysis and study of various methods of obtaining petroleum bitumen and improving the adhesion properties in various mineral materials. Using the example of the Astrakhan gas processing plant, the effectiveness of the addition of additives - nitrogen-, sulfur-containing substances, elemental sulfur, etc. - to improve the adhesion properties of bitumen to mineral materials is shown. The analysis of the effect of temperature differences in summer and winter on the binding properties of bitumen is carried out. A method for preliminary stripping of volatile components from oils is considered, which leads to a decrease in the content of paraffin-naphthenic hydrocarbons and an improvement in the quality of the obtained bitumen.

scholarly journals Use of allyl-isothiocyanate and carvacrol to preserve fresh chicken meat during chilling storage

2019 ◽  
Vol 37 (No. 6) ◽  
pp. 417-424 ◽  
Author(s):  
Khabat Hussein ◽  
Laszlo Friedrich ◽  
Gabriella Kisko ◽  
Emna Ayari ◽  
Csaba Nemeth ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Meat Products ◽  
Allyl Isothiocyanate ◽  
Physicochemical Characteristics ◽  
Chicken Meat ◽  
Escherichia Coli O157 ◽  
Colour Changes ◽  
Microbiological Status ◽  
Natural Additives

The effect of active compounds (ACs), allyl-isothiocyanate (AITC) and carvacrol (CARV), as natural additives on the quality of fresh chicken meat was evaluated. The meat was treated with 500 and 1000 ppm of ACs, vacuum packaged and stored at 4°C up to 8 days. Physicochemical characteristics, lipid oxidation, microbiological status, sensorial electronic-nose based properties were examined. AITC, particularly 1000 ppm, showed greater activity than CARV and resulted in colour changes, accumulative odour production, triggered reduction in the growth of Pseudomonas lundensis, Staphylococcus aureus, and Bacillus cereus and 3 log10 CFU/g reduction in aerobic mesophilic counts. However, CARV was more active in increasing chroma properties and reducing the growth of Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella typhimurium. Concomitantly, 500 ppm CARV showed greater activity than AITC in controlling lipid oxidation and protecting the colour changes. Therefore, both AITC and CARV possess great potential to extend the shelf life of meat and meat products.

Effect of the inclusion of natural additives on animal performance and meat quality of crossbred bulls (Angus × Nellore) finished in feedlot

2018 ◽  
Vol 58 (11) ◽  
pp. 2076 ◽  
Author(s):  
Carlos Alberto Fugita ◽  
Rodolpho Martin do Prado ◽  
Maribel Velandia Valero ◽  
Elton G. Bonafé ◽  
Camila Barbosa Carvalho ◽  
...  
Keyword(s):  
Essential Oils ◽  
Meat Quality ◽  
Castor Bean ◽  
Average Daily Gain ◽  
Average Weight ◽  
Longissimus Muscle ◽  
Animal Performance ◽  
Muscle Area ◽  
Natural Additives

The objective of this study was to evaluate the influence a finishing diet containing natural additives fed for 94 days on animal performance, carcass, and meat quality characteristics of crossbred bulls (1/2 Angus × 1/2 Nellore). Forty-eight bulls (initial BW 318 ± 4.7 kg and initial age 22 months) were used in a completely randomised design. Bulls were fed one of four diets: (1) CON – Control; (2) CCO – addition of 4 g/animal.day of a mix of essential oils from castor bean and cashew; (3) MIX – addition of 4 g/animal.day of a mix of essential oils (oregano oils, castor bean, cashew); (4) YST – addition of 4 g/animal.day of yeast. Bulls were finished in feedlot (in individual pens) and slaughtered at an average weight of 469 ± 6.7 kg. Final BW, hot carcass weight and average daily gain were greater (P < 0.05) in MIX diet than in the three other diets. However, DM intake, G : F, fat thickness, longissimus muscle area, marbling, and meat colour were similar (P > 0.05) among the four diets. The carcass conformation score was higher (P < 0.05) for bulls that were fed with the YST diet and similar for the three other diets. Meat from CCO had a reduced (P < 0.05) cooking loss when compared with CON diet. Shear force from MIX diet had lesser values (P < 0.05) than meat from YST diet, and it was similar among CON and CCO diets. There was no diet effect (P > 0.05) on lipid oxidation, moisture, ash, and total lipids contents. C14:0, C14:1 n-9, C16:0, C18:1 n-9, C18:1 n-7 and C18:3 n-6 fatty acids in intramuscular fat from the longissimus muscle were affected by the inclusion of additives in the diets. SFA, MUFA, PUFA, n-3 and n-6 fatty acid percentages, and the ratios PUFA : SFA and n-6 : n-3 were similar (P > 0.05) among diets. In conclusion, adding a mix of oregano, castor bean, and cashew oils in the diet improved the performance of the bulls, but meat characteristics did not significantly change.

scholarly journals Combined effects of natural additives and modified atmosphere on quality of fresh cut peaches

2017 ◽  
Vol 8 (2) ◽  
pp. 129
Author(s):  
Tâmmila Venzke Klug ◽  
Natália Guilherme Graebin ◽  
Paula Wendelstein Cano ◽  
Simone Hickmann Flôres ◽  
Eduardo César Tondo ◽  
...  
Keyword(s):  
Modified Atmosphere ◽  
Combined Effects ◽  
Fresh Cut ◽  
Natural Additives

scholarly journals Volumetric Characteristics of HRS-WC Mixed Using Petroleum Bitumen Grade 60/70 as Binder

2021 ◽  
Vol 921 (1) ◽  
pp. 012069
Author(s):  
Irianto ◽  
M Tumpu ◽  
H Parung
Keyword(s):  
Experimental Method ◽  
Binder Layer ◽  
Bitumen Content ◽  
Petroleum Bitumen ◽  
Asphalt Content ◽  
Volumetric Characteristics

Abstract This study aims to determine the volumetric values consisting of VIM, VMA and VFB on the binder layer mixture using HRS-WC gradation using petroleum bitumen as a binder. The method used in this research is experimental method in laboratory. In this study, variations of asphalt content used were 5.5%, 6.0%, 6.5%, 7.0% dan 7.5%. These variations were obtained from the calculation of effective asphalt level of 5.9%. The results show that the VIM values decreases along with the increase of bitumen content used. VIM values obtained were 6.69%, 5.82%, 5.18%, 4.42% and 3.34%, respectively. The VMA values obtained were 18.12%, 18.38%, 18.84%, 19.21% and 19.30% for each bitumen content. Besides that, the value of VFB is also taken into account and the values obtained for each quality of bitumen content are 63.10%, 68.41%, 72.57%, 76.99% and 82.71%.

scholarly journals BASIC PHYSICO-CHEMICAL PROPERTIES OF BITUMENS FOR ROADS

2021 ◽  
Vol 73 (1) ◽  
pp. 63-69
Author(s):  
S. S. Satayeva ◽  
◽  
K.A. Mikhailova ◽  
Keyword(s):  
Chemical Properties ◽  
Road Construction ◽  
Oil Refining ◽  
Bituminous Materials ◽  
Physico Chemical ◽  
Heavy Oil Residues ◽  
Petroleum Bitumen ◽  
Physical And Chemical ◽  
And Chemical Properties

The most urgent in the oil refining industry, along with the deepening of oil refining, are the problems of improving the quality of oil products, which include heavy oil residues, such as bitumen. Despite the widespread use of petroleum bitumen in road construction, the demand for bitumen is not fully satisfied, because the quality of many bituminous materials does not fully meet the modern requirements of the construction industry.Conformance of bitumen obtained by synthetic method for using it in road construction was reviewed in this article. Some main physical and chemical properties of bitumen were described. Received results meet with specification and we can make the conclusion that synthesized bitumen can be used for road surface.

Improvements in the quality of meat from beef cattle fed natural additives

Meat Science ◽  
2020 ◽  
Vol 163 ◽  
pp. 108059 ◽  
Author(s):  
Mariana Garcia Ornaghi ◽  
Ana Guerrero ◽  
Ana Carolina Pelaes Vital ◽  
Kennyson Alves de Souza ◽  
Rodrigo Augusto Cortez Passetti ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Natural Additives

scholarly journals PSV-28 Effect of a neuro-sensory additive on meat quality of feedlot finishing beef cattle

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 334-334
Author(s):  
Guillaume Desrousseaux ◽  
Andre Pastori D’Aurea ◽  
Lauriston Bertelli Fernandes ◽  
Rodrigo Tozetto
Keyword(s):  
Beef Cattle ◽  
Meat Quality ◽  
Treated Group ◽  
Control Group ◽  
Group V ◽  
Yellow Color ◽  
Red Color ◽  
Finishing Beef Cattle ◽  
Natural Additives

Abstract Combining natural additives with specific and selected neuro-sensory molecules is a possible solution to manage stress in feedlot beef cattle. The objective of this study was to assess the use of a neuro-sensory additive (VeO) on meat quality of finishing feedlot beef cattle. This study was conducted from May to August in the Premix Research Center, Patrocínio Paulista, Brazil. VeO is based on a specific extract from Rutacea family. 80 Nellore bulls were randomly assigned to a control group (C) and a treated group (V) with 40 animals in each (10 per pen). Both groups received the same total mixed ration supplemented with Fator P (Premix, Brazil) with the addition of VeO as the only difference for 100 days up to slaughter. 160 cuttings in Longissimus muscle were sampled from C carcasses and V carcasses (n = 20) and packed in PVC blister packs 48h post-mortem. Analyzed variables were red color (a*), yellow color (b*) and drip losses (%) at packing then 3 days, 5 days and 7 days after. Statistical analysis was performed through mixed procedure of SAS software. Interactions between treatment and time was observed for values a* (P = 0.003) and b* (P = 0.056) and drip losses as well (P = 0.03). Globally meat from animals fed VeO presented more stable red and yellow colors. From day 5, it presented more intense red and yellow colors in comparison to meat from control animals. At day 7 drip losses were reduced with treatment (V: 8.7% vs. C: 11.4%, P = 0.012). Results showed that the use of the neuro-sensory additive during finishing of feedlot beef cattle improved appearance of meat after slaughter, leading to possible extended shelf life.

Coating of Liquid Wood Sheets

2017 ◽  
Vol 907 ◽  
pp. 134-139 ◽  
Author(s):  
Ovidiu Mocănița ◽  
Daniela Chicet ◽  
Marcelin Benchea ◽  
Bogdan Istrate ◽  
Corneliu Munteanu
Keyword(s):  
Thermal Properties ◽  
Cross Section ◽  
Elasticity Modulus ◽  
Polymer Materials ◽  
Mechanical And Thermal Properties ◽  
Plastic Materials ◽  
Green Polymer ◽  
Natural Additives ◽  
Scanning Electron

Liquid wood is one of the newly discovered green polymer materials, being a biodegradable and recyclable thermoplastic, made from cellulose, lignin and natural additives, currently used in commerce as ARBOFIL, ARBOROM and ARBOBLEND. The applications of this material (aeronautics, automotive, construction, consumer goods etc.) are limited by two major drawbacks: higher weight compared to ordinary plastic materials and low melting point (≈ 175° C). In this work was studied the possibility of changing some mechanical and thermal properties of this material by applying superficial coatings. For this process were prepared specimens from two types of material: ARBOBLEND and ARBOFIL. The resulted samples were analyzed in terms of microstructural changes both longitudinally (in order to evaluate the quality of the deposited layer) and on cross section (in order to evaluate the changes produced at the interface substrate - coating). For this purpose were used the QUANTA 200 3D (FEI, Holland, 2009) scanning electron microscope and the X`PERT PROMD diffractometer (Panalitycal, Holland, 2009). Using the UMTR 2M-CTR Micro-tribometer were evaluated the elasticity modulus of the coatings through microindentation and its adhesion to the substrate through scratch method, applied both longitudinally and on cross section.

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