Feed Controllers Flashcards
Measures HCL flow through PCV-200/270 to MTK-695.
F200/270
HCl vent to MTK-695
Regulates HCl feed flow to reactor.
F201 A/B/C
Oxy HCl flow controller
Regulates F201 A/B/C to control the total sum of HCl feed F201 A/B/C and HAPF Unit HCL F514
F201 A/B/C-S
Oxy Total HCl Flow Controller
Regulates main ethylene flow to reactor. Normally set in ratio to HCl feed flow, to maintain feed stoichiometry, and control excess ethylene in recycle gas.
F202 A/B/C
Oxy Main Ethylene Flow Controller
Regulates trim ethylene flow. Normally a fixed flow approx 500 scfm to give main feed valve room to control.
F203 A/B/C
Oxy Trim Ethylene Flow Controller
Regulates main O2 feed to reactor. Normally set in ratio to HCl flow to maintain feed stoichiometry and control excess O2 in recycle gas.
F204 A/B/C
Oxy Main O2 Flow Controller
Regulates O2 trim feed flow to reactor. Usually with a set flow of 300 scfms to give main feed valve room to operate.
F205 A/B/C
Oxy O2 Trim Flow Controller
Regulates recycle gas flow to reactor. Normally runs 10,000-15,000 scfm to control superficial velocity depending on rates.
F206 A/B/C
Oxy Recycle Gas Flow Controller
Regulates H2 flow to hydrogenator.
F207/F280
Hydrogen Flow Controller
Regulates purge nitrogen flow during recycle gas compressor trip. Normally throttled in field to approx 1600 scfm.
F209 A/B/C
Purge Nitrogen for grid plate and associated equipment protection.
Prevents over pressure of HCl header, by venting to MTK-695.
P200/270
HCl header pressure controller.
Regulates Oxy HCl feed pressure approx 85 psi to aid in accurate feed flow.
P201/P275
Oxy HCl feed pressure controller
Regulates ethylene feed pressure, approx 85 psi to in accurate feed flow.
P202/P220
Oxy ethylene feed pressure controller
Indicates recycle gas comp discharge pressure.
P204 A/B/C
Oxy O2 feed pressure controller
Indicates Oxy H2 feed pressure
P207/280
MRE-201/202 Feed H2 pressure transmitter
Indicates Oxy HCl supply temperature.
T200
HCL header temperature transmitter
Indicates HCl feed temperature after leaving hydrogenator.
T201/T277
Reactor HCl feed temperature transmitter
Regulates ethylene feed temperature by adjusting steam flow to preheater. Temperature is set to prevent dew point corrosion and aid in accurate feed flow reading.
T202/T220
Oxy Ethylene Feed Temperature Controller
Regulates O2 feed temperature at approx 156 C. Temperature is set to prevent dew point corrosion and aid in accurate feed flow reading.
T203/T230
Oxy O2 Feed Temperature Controller
Indicates recycle gas compressor discharge temperature.
T204 A/B/C
RG comp discharge TT
Regulates recycle gas feed temperature to approx 177 C.
T205 A/B/C
Oxy recycle gas temperature controller
Indicates Oxy MRE-203/204 H2 feed temperature.
T206
MRE-201 H2 feed TT
Indicates Oxy H2 feed pressure.
P207/P280
MRE-201/202 H2 feed PT
Indicates Oxy HCl supply temperature.
T200
HCl supply TT
