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45 Cards in this Set

  • Front
  • Back
PSV 208
wash column rv. lifts at 330psi
PSV 217
desorber rv.lifts at 100psi
PSV 216
l.p. rectifier rv. lifts at 100psi
PSV 201
buffer drum rv. lifts at 330psi
215J
co2 compressor. low pressure trip of .5 and 7psi permissive start. discharge trip art 3100psi.
217J
co2 compressor, low psi trip of 2.0 and discharge trip of 3100psi.
205F
nh3 buffer drum. stores nh3 for reflux pumps.
201JA/JB
nh3 reflux pumps. pump nh3 from buffer drum to wash column top and bottom reflux and 202J pumps.
202JA/JB
high psi nh3 pumps
224C
high psi nh3 heater. uses 50 or 200# steam. hearts nh3 up to 300 degrees on dry reactor start up and 150 degrees on regular running
229C
nh3 cooler. uses nh3 from tank farm to cool suction of 202J pumps
PTX 204 A&B
front end pressure trips. trip art 305psi.
219F
50# steam knock out pot. flashes off steam that returns to header. returns condensate to 215F
215F
condensation collection pot. condensate goes to 211j pump and goes off site.
201L
orifice mixer, promotes mixing off nh3, co2, and carbamate.
201D
reactor, operates at 2800psi.
PV201
reactor let down valve.
202E
wash column. nh3 and water from absorber are added to absorber co2 too make carbamate.
203JA/JB
high psi carbamate pumps.
207F
preseparator. separates liquid from vapor. liquid goes to high psi heater. vapor goes to wash column.
205C
high psi heater. 200# steam heats urea to concentrate it up by boiling water off.
208F
1st stage separator. separates liquid and vapor. vapor goes to evaporator to cool down then meets up with vapors off preseparator too wash column. liquid goes to low psi rectifier
LV206
level control valve off 1st stage separator. also pressure let down valve
202CA/CB
nh3 condensers.
203C
nh3 absorber. cooled bfw used to absorber nh3 vapors. nh3 water then goes to wash column.
PV204
front end psi control valve. located on top of the absorber.
FV204
top reflux to wash column. ran in manual.
TV201
bottom reflux to wash column. ran in automatic. temp set at 195
201E
low pressure rectifier. liquid from 1st stage separator enters at top, used to help absorbe nh3 out of vapors off 2nd stage separator. vapors go to low pressure condenser and liquid goes to low psi heater
206C
low psi heater. uses 200# steam
209F
2nd stage separator. separates liquid from vapor. vapors goback to low psi rectifier. liquid goes to evaporator and/or through lv208 to flash drum.
210F
flash drum. under vacuum. drains into west side of 201F
208C
evaporator. urea on tube side. heated by vapors off 1st stage separator, on bottom half, and 200# steam on top half.urea goes to knock out drum.
LV208
2nd stage level control valve
212F
evaporator knock out drum. under vacuum. liquid drains out bottom to east side of 201F.
210C
evaporator condenser
207C
low pressure condenser. vapors off low pressure rectifier mix with nh3 condensate or bfw and over flows into constant head drum.
211F
constant head drum. provides suction for 2nd stage carb pumps.
LV207
level control valve for constant head drum.
PV205
2nd stage pressure control valve.
204JA/JB
2nd stage carb pumps. pumps from constant head drum to wash column.
LV213
desorber level control valve
203E
desorber. uses 200# steam to clean up nh3 condensate to put in scale tanks.
FV209
desorber feed water flow valve
PV209
desorber pressure valve