ATTENTION:
BEFORE YOU READ THE
PROJECT WORK, PLEASE READ THE INFORMATION BELOW. THANK YOU!
TO GET THE FULL
PROJECT FOR THE TOPIC BELOW PLEASE CALL:
08068231953,
08168759420
TO GET MORE PROJECT
TOPICS IN YOUR DEPARTMENT, PLEASE VISIT:
REFURBISHING
OF A FIXED AND FLUIDIZED BED
ABSTRACT
The repair of the fixed bed adsorption
column, a product of arm field technical company was carried out for the
purpose of bringing the faulty equipment back to its normal operating system.
Before this exercise, the equipment was
out of operation because of the completely blocked base of the fixed bed column
(water column) and the malfunctioning of the air control value.
The sintered bronze plate which formed
the base of the water column was cleaned up and freed from debris which
originally blocked the porosity of the plate to an unacceptably level. To
do this, the plate was soaked in a diluted acetic acid and a current of air
used to free the tiny openings from blockage. Later, the air control
valve where properly reactivated, rectified and recalibrated.
At the end the operation of the
equipment came back to normal functioning. The entire equipment was
cleaned up and lubricated.
The fluidized bed was run and found to
be in good order.
TABLE OF CONTENT
1.0
CHAPTER ONE - INTRODUCTION
2.0
CHAPTER TWO - LITERATURE REVIEW
2.1
Absorption
2.2
Types of Absorption
2.2.1
Physical Absorption
2.2.2
Chemical Absorption
2.3
Absorbents
2.4
Desorption
2.4.1
Desorption Methods
2.5
Desorption Operation
2.5.1
Stagewise Operation
2.5.2
Continuous Contact
2.6
Analysis of Fixed – Bed Adsorption
2.7
Adsorption of Solute from Dilute Solution
2.8
The Process of Welding
2.8.1
Oxy-Acetylene Welding
CHAPTER THREE
3.0
REFURBISHING PROCEDURE
CHAPTER
FOUR
4.0
OPERATION OF THE EQUIPMENT
CHAPTER FIVE
Conclusion
CHAPTER SIX
6.0
Recommendation
CHAPTER ONE
1.0
INTRODUCTION
Adsorption is a process in which a
substance becomes attached to the surface of a solid or liquid. The
substances adsorbed at a solid or liquid. The substances adsorbed at a
solid surface may be gases, liquids or other solids (from solution). The
amount of material adsorbed by a given mass of adsorbent when the solid is
porous of finely divided is large. This confirms the theory that
adsorption is a surface phenomena, since the surface area exposed is much greater
when the particles are smaller.
The adsorption operations exploit the
ability of certain solids preferentially to concentrate specific substances
from solution into their surface. In this manner, the components of
either gaseous or solid solutions can be separated from each order.
In the field of gaseous separation,
adsorption is used to dehumidify air and other gases, to remove objectionable
odours and impurities from industrial gases such as carbon dioxide to recover
valuable solvents vapours from dilute mixture with air and other gases, and to
fractionate mixtures of hydrocarbon gases containing such substances as
methane, ethylene, ethane, propylene and propane.
Adsorption from liquid phase is used to
remove moisture dissolved in gasoline, decolourisation of petroleum products
and aqueous sugar solutions, removal of objectionable teste and odour from
water, and the fractionation of mixtures of aromatic and paraffinic
hydrocarbons.
1.1
Our main objective in this project is to refurbish fixed bed adsorption
column. The scale of operation ranges from the use of a few grams of
adsorbent in the laboratory to industrial plants with an adsorbent inventory.
These operations are all similar in
that the mixture to be separated is brought into contact with another insoluble
phase, the adsorbent solid, and the unequal distribution of the original
constituents between the adsorbed phase on the solid surface and the bulk of
the fluid then permits a separation to be made. All the techniques
previously found valuable in the contact of insoluble fluids are useful in
adsorption. Thus, we have batch wise single – stage and continuous
multistage separations and separations analogous to counter current absorption
and stripping in the field of gas – liquid contact and to rectification and
extraction with the use of reflux. In addition, the rigidity and
immobility of a bed of solid adsorbent particles make possible useful
application of semiconscious methods which are not at all practicable when two
fluids are contacted.
AFFILIATE LINKS:
Comments
Post a Comment