Polymer | Production process(es) | Process section | Emissions | |
Continuous | Intermittent | |||
Polypropylene | Liquid Phase | Raw Materials Preparation | X | |
Polymerization Reaction | X | |||
Material Recovery | X | X | ||
Product Finishing | X | |||
Product Storage | ||||
Polypropylene | Gas Phase | Raw Materials Preparation | ||
Polymerization Reaction | X | |||
Material Recovery | X | |||
Product Finishing | ||||
Product Storage | ||||
Low Density Polyethylene | High Pressure | Raw Materials Preparation | X | |
Polymerization Reaction | X | |||
Material Recovery | X | |||
Product Finishing | X | |||
Product Storage | X | |||
Low Density Polyethylene | Low Pressure | Raw Materials Preparation | X | X |
High Density Polyethylene | Gas Phase | Polymerization Reaction | X | |
Material Recovery | ||||
Product Finishing | X | |||
Product Storage | ||||
High Density Polyethylene | Liquid Phase Slurry | Raw Materials Preparation | X | |
Polymerization Reaction | ||||
Material Recovery | X | |||
Product Finishing | X | |||
Product Storage | ||||
High Density Polyethylene | Liquid Phase Solution | Raw Materials Preparation | X | X |
Polymerization Reaction | X | |||
Material Recovery | X | X | ||
Product Finishing | ||||
Product Storage |
Table 2-Maximum Uncontrolled Threshold Emission Rates a
Production process | Process section | Uncontrolled emission rate, kg TOC/Mg product (See associated footnote) |
Polypropylene, liquid phase process | Raw Materials Preparation | 0.15b |
Polymerization Reaction | 0.14b, 0.24c | |
Material Recovery | 0.19b | |
Product Finishing | 1.57b | |
Polypropylene, gas phase process | Polymerization Reaction | 0.12c |
Material Recovery | 0.02b | |
Low Density Polyethylene, low pressure process | Raw Materials Preparation | 0.41d |
Polymerization Reaction | (e) | |
Material Recovery | (e) | |
Product Finishing | (e) | |
Product Storage | (e) | |
Low Density Polythylene, low pressure process | Raw Materials Preparation | 0.05f |
Polymerization Reaction | 0.03g | |
Product Finishing | 0.01b | |
High Density Polyethylene, liquid phase slurry process | Raw Materials Preparation | 0.25c |
Material Recovery | 0.11b | |
Product Finishing | 0.41b | |
High Density Polyethylene, liquid phase solution process | Raw Materials Preparation | 0.24f |
Polymerization Reaction | 0.16c | |
Material Recovery | 1.68f | |
High Density Polyethylene, gas phase process | Raw Materials Preparation | 0.05f |
Polymerization Reaction | 0.03g | |
Product Finishing | 0.01b | |
Polystyrene, continuous process | Material Recovery | 0.05b h |
Poly(ethylene terephalate), dimethyl terephthalate process | Material Recovery | 0.12b h |
Polymerization Reaction | 1.80h i j | |
Poly(ethlyene terephthalate), terephthalic acid process | Raw Materials Preparation | (l) |
Polymerization Reaction | 1.80h j m | |
3.92h k m |
a "Uncontrolled emission rate" refers to the emission rate of a vent stream that vents directly to the atmosphere and to the emission rate of a vent stream to the atmosphere that would occur in the absence of any add-on control devices but after any material recovery devices that constitute part of the normal material recovery operations in a process line where potential emissions are recovered for recycle or resale.
b Emission rate applies to continuous emissions only.
c Emission rate applies to intermittent emissions only.
d Total emission rate for non-emergency intermittent emissions from raw materials preparation, polymerization reaction, material recovery, product finishing, and product storage process sections.
e See footnote d.
f Emission rate applies to both continuous and intermittent emissions.
g Emission rate applies to non-emergency intermittent emissions only.
h Applies to modified or reconstructed affected facilities only.
i Includes emissions from the cooling water tower.
j Applies to a process line producing low viscosity poly(ethylene terephthlalate).
k Applies to a process line producing high viscosity poly(ethylene terephathalate).
l See footnote m.
m Applies to the sum of emissions to the atmosphere from the polymerization reaction section (including emissions from the cooling tower) and the raw materials preparation section (i.e., the esterifiers).
40 C.F.R. §60.560
The numerical emission limits in these standards are expressed in terms of total organic compounds, measured as total organic compounds less methane and ethane.