(b) Quiz for Process Improvement (true or false)

 

1.

The need for employees training increases as the organization n is down-sized.

2.

Introduction of value added products will improve company’s profit margin potential.

3.

Automation will help to maintain consistency in product quality.

4.

Refinery energy usage could be reduced by 35% through process improvement and re-engineering, particularly in face of soaring energy cost as incentive.

5.

Increase the plant capacity is one major step in reducing operating cost.

6.

For many refineries, maintenance cost is the second major operating cost after energy.

7.

Acidic destruction of sucrose creates hydrogen methyl furfural (HMF), a color precursor which eventually forms color.

8.

Two of the major operating cost of a sugar conditioning silo are use of compressed air and increased inventory.

9.

Reducing sucrose physical loss will also help to control environmental cost.

10.

A major bottle-neck for refinery capacity increase is the need for recovery house operation

11.

The net decolorization efficiency of a refinery can be assessed by the color of the final molasses.

12.

The amount of sucrose carried to the final molasses has no relationship to syrup purity.

13.

Reduction in percent sugar recycle backed to the refining process will reduce plant capacity, increase sucrose and energy cost, and reduce overall decolorization efficiency.

14.

Sugar drying and conditioning is another bottle- neck for plant capacity increase.

15.

Comparing to cane syrup, beet syrup has much higher polysaccharide content.

16.

Reduce impurities input to a refinery will significantly increase plant capacity.

17.

In beet sugar boiling: A feed liquor of around 3000 ICU would generally produce sugar with color of less than 30 ICU.

18.

Plant capacity generally can be increased by 25% without major capital investment.

19.

Most of current sulfitation plants would not meet USA food production standard with respect to product quality, health, safety and environmental issue.

20.

Sugar colorants posses’ considerable antioxidant function.

21.

Increase the refinery capacity will significantly improve productivity.

22.

Sucrose loss is defined as sucrose input into plant less sucrose to products,and less sucrose carried to B/S molasses.

23

Consistency in operating condition is a key step in increased productivities.

24

Poor vacuum control would increase chance of entrainment sucrose loss.

25

The invert in sucrose solution do not affect sucrose destruction.

26

Both acid and colorant are products of sucrose degradation.

27

Use of surface condenser for vacuum pan would significantly reduce energy cost.

28

Both polysaccharides and enzyme are by-products of microbial activities in sucrose solution.

29

One of the bottle neck in conversion of a conventional refinery to a VHP refinery is itssugar conditioning capacity.

30

Microbial growth is minimized at a temperature over 165 degree Fahrenh

31

Approximately 80% of raw sugar impurities are on the surface (coating)of crystal.

32

The % recycle of a refinery can be assessed by the color of the final molasses.

33

In a controlled pan boiling, the formation of false grain can be eliminated without use of water.

34

A major saving in refining cost of a VHP refinery is the avoidance of affination step.

35

Color occlusion in beet sugar boiling is much less than that of cane sugar boiling.

36

The higher the brix of sugar syrup, the lower the microbial growth.

 

 
   
   
 

last updated 10/30/2017