2010 1st International Nuclear & Renewable Energy Conference (INREC), 2010
... from Waste Soybean Oil using Jordanian Oil Shale Ash Mamdouh Allawzi* Al-Imam Muhammad Ibn Sa... more ... from Waste Soybean Oil using Jordanian Oil Shale Ash Mamdouh Allawzi* Al-Imam Muhammad Ibn Saud Islamic University Chemical Engineering Department PO Box 5701 Riyadh 11432 Saudi Arabia mallawzi@imamu.edu.sa Awni Al-Otoom,2 Abdulaziz Ajlouni,3 Fahmi ...
ABSTRACT Many countries around the world grow olive trees as olives and olive oil are considered ... more ABSTRACT Many countries around the world grow olive trees as olives and olive oil are considered very important food constituents. Current extraction methods are considered classical methods which mainly imply size reduction of olives, and then separation of the extracted oil. This study aimed at studying the propensity of supercritical fluid extraction (SCFE) of olives from Jordan without prior size reduction (crushing). Different parameters were investigated including operating pressure, operating temperature, and extraction duration. The study involves both experimental design analysis and parameter investigation. Results have indicated that it is possible to perform SCFE of olives without any size reduction. It was found that the maximum yield obtained at the conditions of this study was 12.3 wt% while these results have shown that the most effective parameter is the extraction time, followed by the operating temperature and lastly by the operating pressure. An experimental model was developed in this study to predict the extraction yield as a function of these mentioned parameters.
Jordanian oil shale ash was used as an adsorbent for the removal of copper and zinc from aqueous ... more Jordanian oil shale ash was used as an adsorbent for the removal of copper and zinc from aqueous solution. This ash was treated with either hydrochloric, nitric, sulfuric or phosphoric acids followed by washing and/or neutralization with sodium hydroxide in order to enhance its adsorption capacity. The sample that was treated with nitric acid showed the highest cation exchange capacity
ABSTRACT A preliminary characterization and beneficiation study of Jordanian tar sand obtained fr... more ABSTRACT A preliminary characterization and beneficiation study of Jordanian tar sand obtained from the Dead Sea area has been carried out. Representative tar sand samples were crushed using a jaw crusher and sieved to different size fractions. Characterization of these size fractions revealed that most of the bitumen content was concentrated in the smallest size fraction (< 106 μm). Scanning electron microscopy images showed that the structure of the tar sand is composed of quartz particles of < 1 mm in size surrounded by a bitumen containing envelope which can be regarded as a binder. The pyrolysis kinetics of the material was studied using thermogravimetric analysis (TGA) and the relationship with heating rate was derived. The mass loss obtained from TGA was found to be independent of the heating rate at 35% of the original mass. Three regions of differing kinetic parameters were identified during pyrolysis; a low temperature pyrolysis region, a fuel deposition region and a high temperature pyrolysis region. It was found that the activation energy, in the region of fuel deposition, changes from 32 kJ/mol to 42 kJ/mol by increasing the heating rate from 1 °C/min to 50 °C/min, respectively.
... Mamdoh Allawzi c. a Institute of Earth and Environmental Sciences, Al al-Bayt University, Al-... more ... Mamdoh Allawzi c. a Institute of Earth and Environmental Sciences, Al al-Bayt University, Al-Mafraq, Jordan. b College of Mining and Environmental Engineering, Al-Hussein Bin Talal University, Ma'an, Jordan. c Department of ...
Different parameters affecting the behavior of froth flotation of Jordanian tar sand, obtained fr... more Different parameters affecting the behavior of froth flotation of Jordanian tar sand, obtained from the Dead Sea area, were studied. This study was performed in a modified fluidized bed floatator. The effects of the addition of a flotation agent, NaOH, temperature and flotation time on the beneficiation of bitumen in the froth were investigated. It was found that the beneficiation
2010 1st International Nuclear & Renewable Energy Conference (INREC), 2010
... from Waste Soybean Oil using Jordanian Oil Shale Ash Mamdouh Allawzi* Al-Imam Muhammad Ibn Sa... more ... from Waste Soybean Oil using Jordanian Oil Shale Ash Mamdouh Allawzi* Al-Imam Muhammad Ibn Saud Islamic University Chemical Engineering Department PO Box 5701 Riyadh 11432 Saudi Arabia mallawzi@imamu.edu.sa Awni Al-Otoom,2 Abdulaziz Ajlouni,3 Fahmi ...
ABSTRACT Many countries around the world grow olive trees as olives and olive oil are considered ... more ABSTRACT Many countries around the world grow olive trees as olives and olive oil are considered very important food constituents. Current extraction methods are considered classical methods which mainly imply size reduction of olives, and then separation of the extracted oil. This study aimed at studying the propensity of supercritical fluid extraction (SCFE) of olives from Jordan without prior size reduction (crushing). Different parameters were investigated including operating pressure, operating temperature, and extraction duration. The study involves both experimental design analysis and parameter investigation. Results have indicated that it is possible to perform SCFE of olives without any size reduction. It was found that the maximum yield obtained at the conditions of this study was 12.3 wt% while these results have shown that the most effective parameter is the extraction time, followed by the operating temperature and lastly by the operating pressure. An experimental model was developed in this study to predict the extraction yield as a function of these mentioned parameters.
Jordanian oil shale ash was used as an adsorbent for the removal of copper and zinc from aqueous ... more Jordanian oil shale ash was used as an adsorbent for the removal of copper and zinc from aqueous solution. This ash was treated with either hydrochloric, nitric, sulfuric or phosphoric acids followed by washing and/or neutralization with sodium hydroxide in order to enhance its adsorption capacity. The sample that was treated with nitric acid showed the highest cation exchange capacity
ABSTRACT A preliminary characterization and beneficiation study of Jordanian tar sand obtained fr... more ABSTRACT A preliminary characterization and beneficiation study of Jordanian tar sand obtained from the Dead Sea area has been carried out. Representative tar sand samples were crushed using a jaw crusher and sieved to different size fractions. Characterization of these size fractions revealed that most of the bitumen content was concentrated in the smallest size fraction (< 106 μm). Scanning electron microscopy images showed that the structure of the tar sand is composed of quartz particles of < 1 mm in size surrounded by a bitumen containing envelope which can be regarded as a binder. The pyrolysis kinetics of the material was studied using thermogravimetric analysis (TGA) and the relationship with heating rate was derived. The mass loss obtained from TGA was found to be independent of the heating rate at 35% of the original mass. Three regions of differing kinetic parameters were identified during pyrolysis; a low temperature pyrolysis region, a fuel deposition region and a high temperature pyrolysis region. It was found that the activation energy, in the region of fuel deposition, changes from 32 kJ/mol to 42 kJ/mol by increasing the heating rate from 1 °C/min to 50 °C/min, respectively.
... Mamdoh Allawzi c. a Institute of Earth and Environmental Sciences, Al al-Bayt University, Al-... more ... Mamdoh Allawzi c. a Institute of Earth and Environmental Sciences, Al al-Bayt University, Al-Mafraq, Jordan. b College of Mining and Environmental Engineering, Al-Hussein Bin Talal University, Ma'an, Jordan. c Department of ...
Different parameters affecting the behavior of froth flotation of Jordanian tar sand, obtained fr... more Different parameters affecting the behavior of froth flotation of Jordanian tar sand, obtained from the Dead Sea area, were studied. This study was performed in a modified fluidized bed floatator. The effects of the addition of a flotation agent, NaOH, temperature and flotation time on the beneficiation of bitumen in the froth were investigated. It was found that the beneficiation
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