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Eh2207i - Group 5 - Ethylene Oxide Production

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SCHOOL OF CHEMICAL ENGINEERING

COLLEGE OF ENGINEERING

UNIVERSITI TEKNOLOGI MARA (UiTM)

CPE649

ETHYLENE OXIDE PRODUCTION

DATE: 3/11/2021

GROUP 5 – EH2207I

GROUP MEMBERS:

1. FERGIE RIKAN LIUS (2019921793)

2. MATTHIAS LUNA ANAK FREDDY (2019717631)

3. MOHAMMAD AZIZRIN AZALI BIN THADZUL (2019582491)

4. SYLVIEGENNIE ROYMOND (2019962449)


1. Characteristics of each parameter to be analyzed

Water quality Air quality

Physical properties: Physical properties

 Turbidity  Density
 Total suspended solid  Viscosity
 Temperature  Volatility
 pH value (in-situ)  Heating value

Chemical properties Chemical properties


 Biochemical oxygen demand (5 days
@20°c)  Nitrogen (14093.02 kmol/h)
 Chemical oxygen demand  Oxygen (3050.10 kmol/h)
 Ammoniacal nitrogen  Ethylene (335.04 kmol/h)
 Dissolved oxygen

Biological properties Biological properties


 Total Coliform Count
 Total Fecal Coliform  Contributes to nutrient pollution in air
 Formation of acid rain and smog

2. Possible sources for the pollution

Sources for water pollution Sources for air pollution

1. The discharge of nitrogen, oxygen,


and ethylene-containing fuel gas
from a chemical plant is harmful to
the environment.
2. Excess nitrogen is released during
the combustion of fuel gas. The
presence of excess nitrogen in the
atmosphere contribute to pollution
and oxygen-deprived aquatic zones.
3. Equipment to treat both pollutants

Water Pollution Air Pollution


1. Catalytic Oxidization

Catalytic oxidation of volatile organic


compounds (VOCs), such as
ethylene oxide, works by converting
hazardous air pollutants to CO2,
water vapor (H2O), and useable heat
over a precision designed catalyst.
These innocuous leftovers flow
through a heat exchanger, which
transfers the energy from the gas
stream to the incoming exhaust. In
addition, Lower EO concentrations
can be controlled via catalytic
oxidation, and facilities can connect
many EO emission sources to a
single control unit. Low-concentration
emission sources can provide part or
all of the required diluent air in some
cases. [ CITATION Jan18 \l 1033 ]

2. Regenerative Thermal Oxidation


(RTO)

The use of a Regenerative Thermal


Oxidizer (RTO) can be considered for
higher air flows or concentrations.
Thermal oxidation works similarly to
catalytic oxidation, with the exception
that instead of employing an
oxidation catalyst, a natural gas-fired
burner system is utilised to raise the
temperature of the emissions to the
set point required to destroy the
pollutants. [ CITATION Jan18 \l
1033 ]

3. Scrubbers

Scrubbers are aqueous systems that


absorb EtO vent gas and are
designed for high EtO removal
efficiency. Since EtO is very water
soluble, it is often delivered to a
scrubber column packed with random
packing, where the EtO is absorbed
by an aqueous stream flowing in the
opposite direction of the vent gas to
complete the hydrolysis of the EtO.
[ CITATION Jan18 \l 1033 ]
Reference

1. Carlson, J. (2018, October 30). Ethylene Oxide Sterilization - Air Pollution Control
Options. Retrieved from Catalytic Products International:
https://www.cpilink.com/blog/ethylene-oxide-sterilization-air-pollution-control-options

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