July 2021

Analysis of the effect of feed composition and thermal conditions on distillation plant performance using a computer model

This paper presents the effect of feed composition, xF, and feed thermal conditions on benzene-toluene distillation plant performance. An interactive computer model was developed to simulate the process using vapor-liquid equilibrium (VLE) data, mass and energy balances and McCabe-Thiele method. The feed thermal conditions studied were vaporized feed (VF), feed at its boiling point (FBP) and subcooled liquid (SCL) feed....

Author(s): S. V. Manyele

July 2021

Physicochemical characterization of Grewia species biopolymer, a potential coagulation-flocculation agent

Powdered Grewia species barks was extracted in water and one part of the extract was precipitated with absolute ethanol. Both the crude water extract and the ethanol precipitate were freeze dried, pulverized into powder and subjected to physicochemical analyses. Amongst others, proximate composition, morphology and metal contents by Scanning Electron Microscopy with Energy Dispersive X-Ray (SEM-EDX), functional group by...

Author(s): Kameni Ngounou M. Bernard, G. R. Nkoue Ndondo, Kofa G. Patrice, Daniel E. Egbe,  Ndi K. Sylvere and Kayem G. Joseph

December 2021

Structural properties of high density polyethylene matrix composites reinforced with open air and furnace rice husks ash

In this work, rice husks ash (RHA) was introduced to pure and recycled high density polyethylene (HDPE) matrix, at varying ration (0-50%) to formulate rice husks ash High density polyethylene (RHA-HDPE) composite. RHA was obtained by burning fresh rice husks either by open-air burning (oRHA) or furnace calcination at 700°C  (fRHA). The composite samples were made by melt-mixing the HDPE in an oven at a...

Author(s): Jonathan M. K., Osamong G. A., Butembu S., Kamweru P. K., Gichumbi J. M. and Ndiritu F. G.,