PROCESS DEVELOPMENT AND EQUIPMENT DESIGN FOR DEXTRIN MANUFACTURE FROM STARCH
PROCESS DEVELOPMENT AND EQUIPMENT DESIGN FOR DEXTRIN MANUFACTURE FROM STARCH
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Date
1996-03
Authors
AGEH, EBENEZER A.
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Abstract
In a bid to develop local substitute for imported adhesives,
seeing that the local consumption is high, an attempt was made
to study the process of dextrin manufacture from starch and to
design a converter vessel (Dextrinator) for the process.
An experimental study was carried out to examine the effect of
the various process variables on the product auality. White
dextrin was prepared from cassava starch by adding 2M HC1 as
catalyst to 200g of the starch at a conversion temperature of
120c. For a conversion period of 5 hours, the product had
cold water solubility of 90%, high fluidity and is useful as
a paper adhesive.
A model for the dextrinization process was developed. From the
model, the temperature of the starch material in the
dextrinator is related to the temperature of the heating fluid
(oil) by the equation;
The oil temperature varies with time according to the equation
Description
A THESIS
Submitted to the Postgraduate School in fulfillment
of the requirements for the award of the Degree of
Master of Science
in
Chemical Engineering
BY
AGEH, EBENEZER A.
(B.Eng. (Chem. Eng.) A.B.U. Zaria)
Department of Chemical Engineering
Ahmadu Bello University
Zaria,
March, 1996
Keywords
DEVELOPMENT,, EQUIPMENT,, DEXTRIN,, MANUFACTURE,, STARCH