نتایج جستجو برای: oil extraction

تعداد نتایج: 299062  

Journal: :Bioresource technology 2012
Sune Balle Hansen Stig Irving Olsen Zaini Ujang

This study identifies the potential greenhouse gas (GHG) reductions, which can be achieved by optimizing the use of residues in the life cycle of palm oil derived biodiesel. This is done through compilation of data on existing and prospective treatment technologies as well as practical experiments on methane potentials from empty fruit bunches. Methane capture from the anaerobic digestion of pa...

2006
F. Federici

Olive vegetation waters (OVW) represent a serious environmental problem for the solution of which several disposal methods have been proposed, such as, e.g., physicochemical treatments (decantation with lime and/or total oxidation; concen-tration, drying and incineration; ultrafiltration and reverse osmosys), agronomic (acquaculture; landspreading) and animal-breeding methods (direct utilizatio...

Akram Salmani Aman Mohammad Ziaiifar Esmaeil Seifi Hossein Fereydooni Mahdi Alizadeh,

This study was conducted to find the effects of fruit ripening and extraction method on the quantity and quality of the Koroneiki olive oil. The oil samples extracted in six ripening stages were used for further quality analysis. Quality assessment of the oil was conducted according to the standard methods and the composition of fatty acids was measured by gas chromatography. The results showed...

Journal: :Journal of agricultural and food chemistry 2009
Mikaela Nichkova Xun Fu Zheng Yang Ping Zhong James R Sanborn Dan Chang Shirley J Gee Bruce D Hammock

Pesticide residue analysis in citrus oils is very important for their quality and marketing. This study assessed the reliability and sensitivity of enzyme-linked immunosorbent assays (ELISA) for simazine and cypermethrin screening in orange oil. Simazine was analyzed after extraction of the oil with methanolic phosphate buffer with a limit of quantitation (LOQ) of 40 microg/L for 1-fold and app...

2016
Ivan Mašín Michal Petrů

One of important sources of biomass-based fuel is Jatropha curcas L. Great attention is paid to the biofuel produced from the oil extracted from the Jatropha curcas L. seeds. A mechanised extraction is the most efficient and feasible method for oil extraction for small-scale farmers but there is a need to extract oil in more efficient manner which would increase the labour productivity, decreas...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Journal: :مهندسی بیوسیستم ایران 0
محمدهادی موحدنژاد دکترا، دانشگاه تربیت مدرس محمدهادی خوش تقاضا دانشیار، دانشگاه تربیت مدرس سلیمان عباسی استادیار، دانشگاه تربیت مدرس

the effect of different juice extraction treatments on the qualitative properties of lime juice was investigated. samples were selected from jahromi lime variety and lime juice extracted by means of a screw type juice extraction device. the mechanical parameters of the helical juice extractor [screw velocity (270, 360 and 450 rpm), outlet pressure (minimum, medium vs. maximum)] and lime pretrea...

2016
Nidal Amin Jaradat Abdel Naser Zaid Aladdin Abuzant Ramzi Shawahna

BACKGROUND Currently, there is an increasing interest in developing more efficient techniques for the extraction of phytochemicals. Microwaves and ultrasonic extraction methods are promising techniques that can be used for this purpose. OBJECTIVES The purpose of this study was to investigate the impact of different extraction methods on yield, antioxidant and antimicrobial activities of volat...

Trinidad has tar sand resources of about 2 billion barrels of oil on land in the Parrylands/Guapo and Brighton areas. With an oil price of over USD 25 per barrel, the commercial extraction of oil from Trinidad tar sands is viable, but it requires a careful study. The relatively small extent of this tar sand (about 10,000 acres and with depths varying from surface to less than 500 feet) and with...

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