List of Titles

Authors: Sebola, Rebecca , Pilusa, Jefrey , Muzenda, Edison
Date: 2013
Subjects: Pyrolysis fuel , Waste tyre pyrolysis , Tyre derived fuel
Type: Article
Identifier: uj:4891 , http://hdl.handle.net/10210/12605
Description: This paper reviews the behavior of diesel-tyre derived fuel blends as a modified fuel for diesel engines. Gas phase de-sulphurisation distillation over membrane sieves was used to prepare tyre derived fuel samples. The samples were blended with 50ppm commercial diesel at various volume ratios. The contamination characteristics of such blends were investigated whereby continuous single pass filtration technique was employed to remove solids contaminants in the fuel blends. It was observed that gas phase de-sulphurisation distillation of crude tyre derived fuel reduces total sulphur content by up to 40%. Blending the distilled tyre derived fuel with low sulphur diesel has shown that up to 25vol. % of distilled tyre fuel can be added to low sulphur diesel without compromising the recommended physical properties of the blend. However the total sulphur content remains higher than the recommended specification as per SANS 342 despite the 85% reduction from the crude tyre derived fuel state.
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Authors: Pilusa, Jefrey T. , Muzenda, Edison , Shukla, Mukul
Date: 2013
Subjects: Waste tyre pyrolysis , Tyre derived fuel , Single pass filtration
Type: Article
Identifier: uj:4893 , http://hdl.handle.net/10210/12607
Description: This research reports the experimental investigation of single pass filtration of tyre derived fuel and low sulphur diesel blend using a bench scale two stage micro-molecular filtration set-up. Crude tyre pyrolitic oil obtained from slow pyrolysis of waste tyres was distillated at 250ºC to recover the light to medium fraction from the oil. The distillate was characterized and blended with low sulphur diesel at a volume ratio of 1.5:1 for bench scale filtration tests. Optimum packing densities for both micro and molecular filter media were determined followed by single pass filtration to evaluate the contaminants removal efficiencies. It was observed that the selected packing density of 168kg/m3 and pattern for micro filter medium can remove up to 2.5μm particle size in the fuel. The 18% reduction in total sulphur in the fuel after filtration was an indication of liquid phase mass transfer (molecular filtration) on the active surface of the molecular sieves.
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