This paper concentrated on assessing and controlling the operational loss of sugar in various sugar byproducts during cane processing in cane sugar factory.
In the study, factors associated with operational loss were discussed and Kagera Sugar Limited (KSL) was taken as a case study. Operational sucrose loss is divided into two major categories namely, determined losses and undetermined losses. Determined losses are those which can be easily quantified through lab analysis, such as loss in molasses, filter cake and bagasse. Unlike determined losses, undetermined losses are difficult to estimate directly but rather by factory material balance.
Undetermined loss is further classified into chemical loss, mechanical loss and administrative loss. In both losses, the loss through molasses is by far the largest of total loss encountered during cane processing. Objective of this paper was to develop means of increasing sucrose recovery by monitoring sugar loss. After analyzing data collected from KSL production reports, for crushing seasons 2015/16 and 2016/17 the operational loss was 2.83 and 2.87 pol % cane crushed in respective seasons.
This means KSL loses significant amount of sucrose as compared to 2.20 pol% cane crushed for plants installed after 1994 as reported by. Sugar loss in molasses and bagasse was high than others, it was concluded that, the use of three laws of sucrose loss in molasses coupled with optimization of boiling house operations would result in minimized loss of sucrose in molasses. Also, improving extraction would result in minimum sucrose loss in bagasse.
Table of Contents
1. Introduction
1.1 Sugar production process
1.2 Background of the problem
1.3 Significance of the study
1.4 Methodology
2. Results and Discussion
2.1 Sugar loss in final molasses
2.1.1 How is sugar lost in molasses?
2.1.2 What to be done to minimize sugar loss in molasses
2.2 Sugar loss in bagasse
2.2.1 What to be done to minimize sugar loss in final bagasse
2.3 Sugar loss in filter cake
2.3.1 What to do to further minimize sucrose loss in filter cake
2.4 Sugar loss in undetermined channels:
3. General conclusion
Research Objectives and Core Themes
The primary objective of this research is to evaluate and mitigate the operational sucrose losses incurred during the cane sugar production process at Kagera Sugar Limited (KSL). By analyzing production data from the 2015/16 and 2016/17 seasons, the study aims to identify the primary sources of loss and propose technical optimizations to improve sucrose recovery and plant efficiency.
- Assessment of operational sucrose losses in industrial byproducts.
- Detailed evaluation of sugar loss mechanisms in molasses, bagasse, and filter cake.
- Application of the three laws of molasses loss to optimize boiling house performance.
- Investigation of extraction station parameters to improve overall recovery.
- Comparison of KSL performance against established industry standards.
Excerpt from the Book
2.1.2 What to be done to minimize sugar loss in molasses
The research by (Love DJ et al., 2009) , reports that to minimize the loss in molasses three laws of molasses loss should be used:
First law: The quantity of non-sucrose in final molasses must be minimized because, at any given purity P, each unit of non-sucrose will take with it P/(100-P) units of sucrose. This means if P is constant, to reduce loss in final molasses, only the quantity of non-sucrose should be minimized. This can be done by improving clarification process.
Second law: The achievable final molasses purity or target purity must be kept as low as possible except where this would contradict the First Law. The only way to reduce the target purity of final molasses can be speculated from the equation of calculating target purity adopted from (Rein, 2007):
Target Purity (South Africa) = 43.1 – 17.5 *(1 – e -0.74 · (F+G)/A)
To reduce the target purity is only by increasing the factor (F+G)/A, as it can be seen on the plot hereunder:
Summary of Chapters
1. Introduction: Provides an overview of the sugar production process and establishes the context of the study at Kagera Sugar Limited.
2. Results and Discussion: Analyzes the specific operational losses in molasses, bagasse, filter cake, and undetermined channels with proposed technical solutions.
3. General conclusion: Summarizes that the majority of losses originate from molasses and bagasse, recommending specific operational adjustments to optimize sucrose recovery.
Keywords
sugar production, operational sugar loss, molasses exhaustion, bagasse, sugar boiling house, sugar mill, sucrose recovery, clarification process, milling station, cane processing, KSL, extraction efficiency, pol% cane, target purity, industrial performance
Frequently Asked Questions
What is the core focus of this research?
The research investigates the operational losses of sucrose during the sugar manufacturing process, specifically using Kagera Sugar Limited (KSL) as a case study.
What are the primary areas where sugar is lost?
The study identifies major sugar losses in molasses, bagasse, filter cake, and various undetermined channels such as mechanical or administrative leaks.
What is the main objective of the study?
The objective is to quantify these losses and propose technical methods to increase sucrose recovery and plant performance.
Which research methodology was applied?
The study employs a combination of quantitative research and armchair thinking, utilizing actual production reports from KSL for the 2015/16 and 2016/17 seasons.
What does the main body of the work cover?
It discusses the technical factors affecting losses, provides specific chemical and mechanical solutions for each loss category, and includes data analysis from the factory reports.
Which keywords best characterize this work?
Key terms include sugar production, operational sugar loss, molasses exhaustion, bagasse, and extraction efficiency.
How is the "First Law" of molasses loss applied at KSL?
The first law dictates that non-sucrose substances must be minimized during the clarification process to prevent them from carrying sucrose into the final molasses.
Why is the "Third Law" significant for the plant?
The third law focuses on achieving the target purity of final molasses through optimized boiling house operations, which is critical because molasses represents the largest source of sucrose loss in the factory.
- Citar trabajo
- Paul Chacha (Autor), 2020, Assessment and Control of Operational Loss of Sugar During Sugar Cane Processing, Múnich, GRIN Verlag, https://www.grin.com/document/539319
