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