Research Papers/Topics in Chemical Engineering

Optimization of the Operating Parameters for the Extractive Synthesis of Biolubricant from Sesame Seed Oil via Response Surface Methodology

This study examined the optimization of the transesterification reaction of sesame methyl esters (SMEs) with trimethylolpropane (TMP) to synthesise sesame biolubricant (SBL). Response surface methodology (RSM) using central composite design (CCD) was employed for the experimental design. Effects of temperature, mole ratio and reaction time on the yield of SBL were evaluated. The predicted yield after process optimization was found to agree satisfactorily with the experimen...

Production of Environmentally Adapted Lubricant Base Stock from Jatropha Curcas Specie Seed Oil

Jatropha curcas seed oil was studied for the synthesis of trimethylolpropane based biolube basestock via chemical transesterification of Jatropha methylester with trimethylolpropane (TMP) using calcium hydroxide catalyst. Reactions temperatures ranged between 80 and 160 C and methyl esters to TMP mole ratios ranged between 3:1 and 7:1. Product analysis, ester groups and physio-chemical properties were obtained by gas chromatography, Fourier transform i...

Synthesis and Tribological Evaluation of Sesame Oil-based Trimethylolpropane Ester

Synthesis of polyol ester as a novel biodegradable base stock from sesame seed oil for lubricant production was conducted via chemical transesterification of sesame methylester with trimethylolpropane (TMP) using calcium hydroxide catalyst. The reactions were carried out under varying temperatures (80 C160 C) and methyl esters to TMP mole ratios (3:1 to 7:1). Product’s analysis was performed using gas chromatography. Product’s physicochemical characteristics determi...

Dynamic Response Of Microbial System Of Selected Communities In The Rivers State To Crude Oil (Hydrocarbons) Pollution

ABSTRACT The activity of indigenous microbial system is a required tool to remediate an environment that has been contaminated by hydrocarbons. This work deals with the dynamic response to crude oil contaminants of undefined microbial systems in three selected communities of the Rivers State of Nigeria. The activities of indigenous (undefined) consortia were studied and compared using Respiratory technique. The soil samples were incubated with 2 % ( 𝑣⁄𝑣)crude oil in mineral salt...

Academia- Government- Industry Relations A Case For The Engineering Discipline In Nigeria

_ABSTRACT -.Nigeria has for long been a developing nation without much progress. An observation of some of the countries of the world reveals a strong interplay between the quality of engineering education and the technological advancement of such country.

Effect of processing method on the quality of cowpea (Vigna unguiculata) flour for akara preparation

Abstract Cowpeas were prepared into flour by wet dehulling, wet milling into paste and drying; wet dehulling, drying and milling; and wet dehulling, wet milling and foam mat drying. Proximate chemical composition and functional properties (water and fat absorption capacities, foaming capacity, foam stability, bulk density, gelation capacity and emulsification capacity) of flours and of paste prepared by wet dehulling, wet milling and no drying, were determined. Akara from fresh paste and...

WATER CRESTING PREDICTIONS IN HORIZONTAL OIL WELLS

ABSTRACTHorizontal well application has sometimes been employed as a way of minimizing excessive water production arising from coning commonly encountered during oil production in vertical wells. Lots of efforts on water coning in vertical wells have been published. Available predictive models in horizontal wells vary from rather simplistic to complex models. This study investigated the development of practical models that combine ease of use with accuracy. Conformal mapping was used to...

VALORIZATION OF BIO-PLASTIC (PHA) FROM WASTEWATER AND CIRCULAR ECONOMY

ABSTRACT Circular economy requires sustainable supply of raw materials to industries. Social and economic networks are needed in order to develop circular economies that would drive value chains in renewable resource processing from wastewater into renewable bioplastic products. Current plastic is non-biodegraded which can cause harm to our environment. A pilot scale investigation was carried-out so as to evaluate the feasibility of producing value-added bioplastic from wastewat...

QUALITY CONTROL FOR WASTEWATER TREATMENT

Quality control is a checking test to monitor and ensure the wastewater treatment plant (WWTP) is at optimum efficiency. The tests are usually carried out on samples collected from specific points or stations in the WWTP.  The Influent sample, is collected after the fine screens. Aeration basin sludge, is collected from the point of overflow of the aeration basin, before it is sent to the clarifier. Return Activated Sludge (RAS) sample, is collected from the sludge pumping station...

WASTEWATER TREATMENT PROCESS AND TECHNOLOGY

Wastewater is made up largely of organic carbon, either in solution or as particulate matter. About 60% is in particulate form, consisting of proteins, amino acids, peptides, carbohydrate, fats and fatty acids. Wastewater treatment plant (WWTP) prevent potential waterborne disease outbreak. This is achieved by the active use of mechanical process and biological process of the treatment plant to treat and convert wastewater into clear effluent that meets specific standard. The efflue...

Drying and Particle Size Characteristics of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) Wood Sawdusts at Different Temperatures.

The drying and particle size characterization of Danta (Nesogordonia papavereria) and HardCross (Vitex doniana) hardwood sawdusts were investigated at temperatures 80 ºC, 90 ºC and105 ℃. The experimental drying data were modeled using eighteen existing drying models.The results showed that the modified Henderson and Pabis model offered the best fit to thedrying curves of Danta and Hard Cross sawdusts. The experimental data obtained from theparticle size distribution of both the samples we...

Production of Soy-Yoghurt by Fermentation of Soymilk with Lactobacillus Isolated from Nunu

The production of soy-yoghurt by fermentation of soymilk with lactobacillus isolated from nunu (a Nigerian indigenous fermented cow-milk) was studied. Soymilk was extracted from whole and dehulled soybean seeds and pasteurized. The fermentation was carried out with both the isolate from nunu and yoghurmet (a commercial yoghurt starter culture of Streptococcus thermophilus and Lactobacillus bulgaricus) as control. The percentage of soymilk inoculated was 70%, 80% and 100% of the broth. Soy-yog...

A Technical Report on Nigeria's Solid Minerals and Locations

  Nigeria’s Solid Minerals Resources AND LOCATIONS

DETERMINATION OF REMOVAL EFFICIENCY OF METHYLENE BLUE FROM AQUEOUS SOLUTION USING CHEMICALLY ACTIVATED CARBON PRODUCED FROM MANGO SHELL

ABSTRACTThe presence of methylene blue (MB) in wastewater is a major concern in the environment due to its low biodegrability and harmful effect on man. The treatment of effluent containing such dye is important where adsorption on activated carbon (AC) produced from agricultural waste is of great choice. Optimization of the removal efficiency of MB from aqueous solution onto AC prepared from mango shell was investigated. The AC was prepared from mango shell, activated with BaCl2 at I.R (0.03...


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