Question

Low Pressure Recycle Gas (NH$_3$, CO$_2$) High Pressure Recycle Solution (NH$_4$COONH$_2$, NH$_3$ CO$_2$, H$_2$O) Reactor 185°C 180 atms Steam Cooling H$_2$O M NH$_3$ (3-5 mols) CO$_2$ (4 mols) Steam Flash Evaporator 140°C 27 atms. Condensate M Flash Drum 1 atms. Steam Vacuum Evap. 135°C 99% 80% Aqueous Urea Molten Urea NH$_3$ CO$_2$ ) Off-Gases To NH$_3$ By-Product Usage (e.g. NH$_4$NO$_3$...) Prilling Tower Air

          Low Pressure Recycle Gas (NH$_3$, CO$_2$)
High Pressure Recycle Solution
(NH$_4$COONH$_2$, NH$_3$ CO$_2$, H$_2$O)
Reactor
185°C
180 atms
Steam
Cooling
H$_2$O
M
NH$_3$ (3-5 mols)
CO$_2$ (4 mols)
Steam
Flash Evaporator
140°C
27 atms.
Condensate
M
Flash Drum
1 atms.
Steam
Vacuum Evap.
135°C
99%
80% Aqueous Urea
Molten Urea
NH$_3$
CO$_2$
) Off-Gases
To NH$_3$ By-Product
Usage (e.g. NH$_4$NO$_3$...)
Prilling Tower
Air

Low Pressure Recycle Gas (NH3, CO2)
High Pressure Recycle Solution
(NH4COONH2, NH3 CO2, H2O)
Reactor
185°C
180 atms
Steam
Cooling
H2O
M
NH3 (3-5 mols)
CO2 (4 mols)
Steam
Flash Evaporator
140°C
27 atms.
Condensate
M
Flash Drum
1 atms.
Steam
Vacuum Evap.
135°C
99%
80% Aqueous Urea
Molten Urea
NH3
CO2
) Off-Gases
To NH3 By-Product
Usage (e.g. NH4NO3...)
Prilling Tower
Air

Added by Gabrielle O.

Chemistry An Atoms First Approach

Steven S. Zumdahl, Susan A. Zumdahl 2nd Edition

Chapter 8

Instant Answer

Solved by Expert Taimoor Shabbir

Step 1

The process starts with the reactor, where urea is produced. The reactor operates at a temperature of 185°C and a pressure of 180 atm. Urea synthesis is carried out by reacting carbon dioxide (CO2) and ammonia (NH3) in the presence of steam. Show more…

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Explain the production process of powdered urea based on the given figure: Reactor 185Â°C 180 atm Steam High Pressure Recycle Solution H2O Cooling CO2 NH4 mols 3-5 mols) Flash Evaporator Low Pressure Recycle Gas NH3 CO2 Steam 140Â°C 80X Aqueous Urea Flash Drum latas. CO2 NH3 Vacuum Evap Off-Gases Molten Urea 99% 135 To NH3 By-Product Prilling Tower AiT