Michigan Administrative Code
Department - Environmental Quality
Air Quality Division
Part 6 - EMISSION LIMITATIONS AND PROHIBITIONS-EXISTING SOURCES OF VOLATILE ORGANIC COMPOUND EMISSIONS
Section R. 336.1625 - Emission of volatile organic compound from existing equipment utilized in manufacturing synthesized pharmaceutical products
Current through Vol. 24-04, March 15, 2024
Rule 625.
(1) A person shall not cause or allow the emission of any volatile organic compound from existing equipment utilized in the manufacturing of synthesized pharmaceutical products, unless all of the provisions of this rule are met or unless an equivalent control method, as approved by the department under R 336.1602(2), is implemented.
(2) A person shall not operate an existing reactor, distillation operation, crystallizer, centrifuge, or vacuum dryer, unless the emissions from this equipment are controlled by either of the following:
(3) For the purpose of this rule, the sum of the partial pressure or pressures of the volatile organic compound or compounds in the gas stream is to be determined as follows:
Where:
Pt = Sum of the partial pressures of all volatile organic compounds.
Pi = Vapor pressure of volatile organic compounds at 20 degrees Celsius (68 degrees Fahrenheit).
Xi = Mole fraction of volatile organic compounds in liquid mixture.
n = Number of different volatile organic compounds in liquid mixture.
i = Individual volatile organic compound.
The mole fraction, Xi, is determined as follows:
Xi = moles of "i" in liquid mixture total moles of liquid mixture
The total moles of liquid mixture must include both the moles of volatile organic compounds and volatile inorganic compounds, such as water, in the liquid mixture.
(4) Notwithstanding the provisions of subrule (2)(a) of this rule, a person shall not be required to reduce the temperature of a gas stream below the freezing point of a condensable component in that gas stream if it can be demonstrated, using intrinsic chemical data, to the satisfaction of the department under R 336.1602(3), that in doing so, the condenser would be rendered ineffective. In this case, the temperature of the gas stream must be reduced as low as can be achieved without freezing of the condenser occurring.
(5) The provisions of this rule do not apply to any single existing reactor, distillation operation, crystallizer, centrifuge, or vacuum dryer that has a maximum uncontrolled volatile organic compound emission rate of less than 15 pounds per day.
(6) A person shall not operate an existing air dryer or production equipment exhaust system unless the volatile organic compound emissions from this equipment are reduced by not less than 90% if the uncontrolled volatile organic compound emissions are 330 pounds per day or more or are reduced to less than or equal to 33 pounds per day if the uncontrolled volatile organic compound emissions are less than 330 pounds per day.
(7) A person shall not load or allow the loading of a volatile organic compound that has a vapor pressure of more than 210 millimeters of mercury (4.1 pounds per square inch), as measured at 20 degrees Celsius (68 degrees Fahrenheit), from a truck or railcar into an existing stationary vessel of more than a 2,000-gallon capacity, unless a vapor balance system or an alternate control system that provides not less than 90% control of loading emissions is utilized.
(8) A person shall not store a volatile organic compound that has a vapor pressure of more than 75 millimeters of mercury (1.5 pounds per square inch), as measured at 20 degrees Celsius (68 degrees Fahrenheit), in an existing above ground stationary vessel, unless the stationary vessel is equipped with a pressure/vacuum conservation vent set at plus or minus 1.5 millimeters of mercury (0.03 pounds per square inch) or an alternate control system at least as effective, under R 336.1602(2). For purposes of comparing the actual emission level from an alternative control technology to the allowable emission level resulting from the use of a pressure/vacuum conservation vent meeting this requirement, the actual emission level must be determined using the methods described in 40 CFR part 60 , appendix A, and the allowable emission level must be determined using the calculation methods described in appendix B of "Control of Volatile Organic Emissions From Manufacture of Synthesized Pharmaceutical Products", EPA-450/2-78-029, both adopted by reference in R 336.1902.
(9) A person shall not operate an existing centrifuge, rotary vacuum filter, or other filter that has an exposed liquid surface, if the liquid contains a volatile organic compound or compounds and the sum of the partial pressure or pressures of volatile organic compound or compounds is 26.2 millimeters of mercury (0.5 pounds per square inch) or more, as measured at 20 degrees Celsius (68 degrees Fahrenheit), unless the equipment is enclosed.
(10) A person shall not operate an existing in-process tank that may contain a volatile organic compound at any time, unless the tank is equipped with a cover and the cover remains closed, except when production, sampling, maintenance, or inspection procedures require operator access.
(11) A person shall not operate any existing equipment utilized in the manufacturing of synthesized pharmaceutical products from which a liquid containing a volatile organic compound or compounds can be observed dripping or running, unless the leak is repaired immediately, if possible, but not later than the first time the equipment is off-line for a period of time that is long enough to complete the repair.
(12) A person who is responsible for the operation of a synthesized pharmaceutical process subject to the provisions of this rule shall obtain current information and maintain records that are necessary for a determination of compliance with the provisions of this rule. The information must include all of the following: