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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Membrane Biodiesel Production And Refining Technology: A Critical Review, Abdul Aziz Abdul Raman
Membrane Biodiesel Production And Refining Technology: A Critical Review, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Membranes processes for the production and refining of biodiesel are being increasingly reported. Membrane technology has attracted the interest of researchers for its ability to provide high purity and quality biodiesel fuel besides its remarkable biodiesel yields. Membranes have numerous numbers of useful properties such as resistance to mechanical, chemical and thermal stress, high available surface area per unit volume, high selectivity, and ability to control the components contact between the two phases makes them potential. These properties have made them to be potential candidates for both upstream and downstream biodiesel production and refining applications. In this regards, this paper …
Refining Technologies For The Purification Of Crude Biodiesel, Abdul Aziz Abdul Raman
Refining Technologies For The Purification Of Crude Biodiesel, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
In biodiesel production, downstream purification is an important step in the overall process. This article is a critical review of the most recent research findings pertaining to biodiesel refining technologies. Both conventional refining technologies and the most recent biodiesel membrane refining technology are reviewed. The results obtained through membrane purification showed some promise in term of biodiesel yield and quality. Also, membranes presented low water consumption and less wastewater discharges. Therefore, exploration and exploitation of membrane technology to purify crude biodiesel is necessary. Furthermore, the success of membrane technology in the purification of crude biodiesel could serve as a boost …
Application Of Natural Clay To Formulate Nontraditional Completion Fluid That Triples Oil Productivity, Abdul Aziz Abdul Raman
Application Of Natural Clay To Formulate Nontraditional Completion Fluid That Triples Oil Productivity, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Adverse effect of the highly biorecalcitrant compound phenol to the environment is well established and its concentrations in industrial effluents vary greatly from 2.8 to 6,800 mg/l depending on the source. Fenton process effectively mineralises to CO(2) and H(2)O but reported works consumed more reagents and require longer reaction times. Due to the strong interaction between the several predictor variables in the Fenton oxidation, response surface methodology was used to optimise the mineralization treatment. Efficient, faster and economical operating conditions for phenol removal were explored by investigating four parameters namely the concentration ratio of hydrogen peroxide to phenol - ((H(2)O(2)):(Phenol)), …
Measuring Powder Flowability With A Modified Warren Spring Cohesion Tester, Abdul Aziz Abdul Raman
Measuring Powder Flowability With A Modified Warren Spring Cohesion Tester, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
The measurement of powder flowability is a major concern for most industrial processes that deal with the handling of bulk solids as raw materials, intermediates, or products. The development of devices that measure the flowability of non-aerated powders has not progressed as rapidly as might have been hoped since most research activities have been based on various types of shear testers intended to aid the design of hoppers. A new flowability indicator named as weighted cohesion (WS) is established using newly improved version of direct cohesion texture. A cornerstone of the proposed technique is that the procedure is automated, using …
Rheological And Statistical Evaluation Of Nontraditional Lightweight Completion Fluid And Its Dependence On Temperature, Abdul Aziz Abdul Raman
Rheological And Statistical Evaluation Of Nontraditional Lightweight Completion Fluid And Its Dependence On Temperature, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
This study presents a concise rheological and statistical evaluation of a novel super lightweight completion fluid (SLWCF) and the effect of temperature on its viscosity. Eight rheological models were proposed in order to describe the viscoplastic behavior of the fluid. Based on the results, the fluid is best described both by the Sisko model and the Mizahri-Berk model. These two models are not only able to quantify the relationship between shear rate and shear stress accurately, but also accommodate the physical characteristics of the fluids. On the study of fluid's viscosity dependence on temperature, the result shows that the activation …
Biodiesel Separation And Purification: A Review, Abdul Aziz Abdul Raman
Biodiesel Separation And Purification: A Review, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Conventional technologies used for biodiesel separation such as gravitational settling, decantation, filtration and biodiesel purification such as water washing, acid washing, and washing with ether and absorbents have proven to be inefficient, time and energy consumptive, and less cost effective. The involvement of membrane reactor and separative membrane shows great promise for the separation and purification of biodiesel. Membrane technology needs to be explored and exploited to overcome the difficulties usually encountered in the separation and purification of biodiesel. In this paper both conventional and most recent membrane technologies used in refining biodiesel have been critically reviewed. The effects of …
A Packed Bed Membrane Reactor For Production Of Biodiesel Using Activated Carbon Supported Catalyst, Abdul Aziz Abdul Raman
A Packed Bed Membrane Reactor For Production Of Biodiesel Using Activated Carbon Supported Catalyst, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
In this study, a novel continuous reactor has been developed to produce high quality methyl esters (biodiesel) from palm oil. A microporous TiO 2/Al 2O 3 membrane was packed with potassium hydroxide catalyst supported on palm shell activated carbon. The central composite design (CCD) of response surface methodology (RSM) was employed to investigate the effects of reaction temperature, catalyst amount and cross flow circulation velocity on the production of biodiesel in the packed bed membrane reactor. The highest conversion of palm oil to biodiesel in the reactor was obtained at 70°C employing 157.04g catalyst per unit volume of the reactor …
Treatment Technologies For Petroleum Refinery Effluents: A Review, Abdul Aziz Abdul Raman
Treatment Technologies For Petroleum Refinery Effluents: A Review, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
This paper presents a brief account of different technologies used for the treatment of petroleum refinery effluents (PRE). Broadly, PRE treatment is accomplished in two stages, namely, a series of pre-treatment steps, in which suspended matter, oil and grease are reduced, and an advanced stage, in which wastewater contaminants are decreased to certain acceptable discharge limits. Photocatalytic degradation techniques have been widely used in water and wastewater treatment. However, the literature regarding PRE treatment is scarce, and the technique is still not being utilised on an industrial scale in refineries. This is largely due to limited research findings discussing PRE …