35 Ill. Adm. Code 218.444
Process Unit Turnarounds
Section 218
Section 218.444 Process Unit
Turnarounds
a) No owner or operator of a petroleum refinery shall cause or
allow a refinery process unit turnaround except in compliance with an operating
procedure as approved by the Agency.
b) Unless a procedure was already on file with the Agency as part
of an approved operating permit no later than November 1, 1979, the owner or
operator of a petroleum refinery shall submit to the Agency for approval a
detailed procedure for reducing emissions of VOM during refinery process unit
turnarounds from organic material with a vapor pressure of 10.34 kPa (1.5 psia)
or greater at 294.3° K (70° F). The Agency shall not approve the procedure
unless it provides for:
1) Depressurization of the refinery process unit or vessel to a
flare, refinery fuel gas system, or other equipment or system of equal emission
control, as approved by the Agency and approved by the USEPA as a SIP revision,
until the internal pressure from the vessel or unit is less than 5.0 psig
before allowing the vessel to be vented to the atmosphere;
2) Recordkeeping of the following items:
A) Each date that a refinery unit or vessel is shut down; and
B) The total estimated quantity of VOM emitted to the atmosphere
and the duration of the emission in hours.