الفهرس 
صفحة العنوانOnly 14 pages are availabe for public view
 |  | from | 236 |  |  |
| | | from | 236 | | |
Abstract
Purification of liquid fuel from 5- and N- compounds using one unique, simple, inexpensive, easily handling and highly applicable technique considering most difficulties and disadvantages of the previous techniques. The current work In this thesis is relied on the modification of natural fabrics (Cotton and Wool) by using MOF materials via two different techniques ex-situ and in-situ. Then, the MOF/fabric composite were used for removal of 5- and/or N-compounds from liquid fuel. Purification of liquid fuel from nitrogenated compounds is of interest in order to protect the automotive engines and the environment from its harmful effects represented in corrosion, formation of gums in engines and evolution of NOx gases. In this thesis, composites from metal organic framework (MOF) and ... natural fabric (cotton and wool) were designed and applied in removal of nitrogenated compounds from liquid fuel. MOF based on AI, namely MIL-53-NH2 was immediately formed inside fabric to produce MIL-53-NH2@fabric composite.
The contents of MOF onto fabrics were 185.0 mg/g (:::: 22.4 of AI mg/g) for cotton
and 234.5 mg/g (:::: 28.4 of AI mg/g) for wool. Infrared and X-ray spectra confirmed the formation of MIL-53-NH2 MOF within natural fabrics. The microscopic observations for composites, showed that the compositions of fabrics played a main role in the morphology of the incorporated MOF. The formed composites were applied in adsorption of indole and quinoline from liquid fuel and the adsorption was fitted well to Langmuir isotherm. Maximum adsorption capacities of nitrogenated compounds were significantly enlarged from 87.7 mg/g and 125 mg/g onto cotton to 149.3 mg/g and 178.6 mg/g onto composite, respectively. In case of wool, maximum capacities were increased from 121.5 mg/g to 163.9 rng/g
and 156.4 mg/g to 204.1 mg/g after incorporation of MIL-53-NH2 MOF into fabric. The adsorption capacity of composite was diminished by percentage of 19.2 - 40.0 % by applying 4 regenerated cycles. It was found that, adsorption capa were linearly function with MOF and AI contents onto fabrics. Such composite against recycling could be highly applicable as filter in fuel purific and could be used for many times with substantial adsorption efficiency. 0 Sulfur containing contaminants (Se extensively concerned in the last decades. Herein, non-invasive and inno method was carried out for synthesis of metal organic framework (MOF)@ composites to apply in removing of thiophene from liquid fuel. MIL-53(AI)-N a type of MOF was selected to in-situ prepare within fabrics (cotton & wo infrared-assisted technique. The contents of MOF/AI presented within fa were 81.97/9.92 mg/g for cotton and 95.70/11.58 mg/g for wool. Sea microscope and X-ray confirmed that fluffy microcrystalline MIL-53(AI)-NH2 formed indivict”.lally as powder and directly within fabrics structure. The pre MOF and MOF@fabric composites were exploited in adsorption of thiop from n-heptane. Infrared spectra proved the adsorption of thiophene ant applied materials (MOF and composites). The adsorption of thiophene ant composites found to obey Langmuir isotherm and second-order kinetic m The maximum adsorption capacities were followed the order of MIL-53(AI)· (739.0 mg/g) > MIL-53(AI)-NH2@fabric (469.4 - 516.5 mg/g) »> fabric (8 153.8 mg/g). After 4 restoration cycles, the adsorption capacities were low by percentage of 28.4 - 43.6, due to the decrement in MOF contents, prepared MIL-53(AI)-NH2@fabric composites could be widely applicable in cleaning of liquid fuel from SCCs with high efficient.