[Title 40 CFR 60.101a]
[Code of Federal Regulations (annual edition) - July 1, 2009 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 60 - STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--]
[Subpart Ja - Standards of Performance for Petroleum Refineries for Which]
[Sec. 60.101a - Definitions.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.101aSec. 60.101aPROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Petroleum Refineries for Which
Sec. 60.101a  Definitions.

    Terms used in this subpart are defined in the Clean Air Act, in 
Sec. 60.2, and in this section.
    Coke burn-off means the coke removed from the surface of the FCCU 
catalyst by combustion in the catalyst regenerator. The rate of coke 
burn-off is calculated by the formula specified in Sec. 60.104a.
    Contact material means any substance formulated to remove metals, 
sulfur, nitrogen, or any other contaminant from petroleum derivatives.
    Delayed coking unit means one or more refinery process units in 
which high molecular weight petroleum derivatives are thermally cracked 
and petroleum coke is produced in a series of closed, batch system 
reactors.
    Flare means an open-flame fuel gas combustion device used for 
burning off unwanted gas or flammable gas and liquids. The flare 
includes the foundation, flare tip, structural support, burner, igniter, 
flare controls including air injection or steam injection systems, flame 
arrestors, knockout pots, piping and header systems.
    Flexicoking unit means one or more refinery process units in which 
high molecular weight petroleum derivatives are thermally cracked and 
petroleum coke is continuously produced and then gasified to produce a 
synthetic fuel gas.
    Fluid catalytic cracking unit means a refinery process unit in which 
petroleum derivatives are continuously charged and hydrocarbon molecules 
in the presence of a catalyst suspended in a fluidized bed are fractured 
into

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smaller molecules, or react with a contact material suspended in a 
fluidized bed to improve feedstock quality for additional processing and 
the catalyst or contact material is continuously regenerated by burning 
off coke and other deposits. The unit includes the riser, reactor, 
regenerator, air blowers, spent catalyst or contact material stripper, 
catalyst or contact material recovery equipment, and regenerator 
equipment for controlling air pollutant emissions and for heat recovery. 
When fluid catalyst cracking unit regenerator exhaust from two separate 
fluid catalytic cracking units share a common exhaust treatment (e.g., 
CO boiler or wet scrubber), the fluid catalytic cracking unit is a 
single affected facility.
    Fluid coking unit means one or more refinery process units in which 
high molecular weight petroleum derivatives are thermally cracked and 
petroleum coke is continuously produced in a fluidized bed system. The 
fluid coking unit includes equipment for controlling air pollutant 
emissions and for heat recovery on the fluid coking burner exhaust vent.
    Fuel gas means any gas which is generated at a petroleum refinery 
and which is combusted. Fuel gas includes natural gas when the natural 
gas is combined and combusted in any proportion with a gas generated at 
a refinery. Fuel gas does not include gases generated by catalytic 
cracking unit catalyst regenerators and fluid coking burners, but does 
include gases from flexicoking unit gasifiers. Fuel gas does not include 
vapors that are collected and combusted to comply with the wastewater 
provisions in Sec. 60.692, 40 CFR 61.343 through 61.348, 40 CFR 63.647, 
or the marine tank vessel loading provisions in 40 CFR 63.562 or 40 CFR 
63.651.
    Fuel gas combustion device means any equipment, such as process 
heaters, boilers, and flares, used to combust fuel gas, except 
facilities in which gases are combusted to produce sulfur or sulfuric 
acid.
    Fuel gas system means a system of compressors, piping, knock-out 
pots, mix drums, and units used to remove sulfur contaminants from the 
fuel gas (e.g., amine scrubbers) that collects refinery fuel gas from 
one or more sources for treatment as necessary prior to combusting in 
process heaters or boilers. A fuel gas system may have an overpressure 
vent to a flare but the primary purpose for a fuel gas system is to 
provide fuel to the refinery.
    Oxidation control system means an emission control system which 
reduces emissions from sulfur recovery plants by converting these 
emissions to sulfur dioxide (SO2) and recycling the 
SO2 to the reactor furnace or the first-stage catalytic 
reactor of the Claus sulfur recovery plant or converting the 
SO2 to a sulfur product.
    Petroleum means the crude oil removed from the earth and the oils 
derived from tar sands, shale, and coal.
    Petroleum refinery means any facility engaged in producing gasoline, 
kerosene, distillate fuel oils, residual fuel oils, lubricants, asphalt 
(bitumen) or other products through distillation of petroleum or through 
redistillation, cracking, or reforming of unfinished petroleum 
derivatives.
    Process heater means an enclosed combustion device used to transfer 
heat indirectly to process stream materials (liquids, gases, or solids) 
or to a heat transfer material for use in a process unit instead of 
steam.
    Process upset gas means any gas generated by a petroleum refinery 
process unit as a result of upset or malfunction.
    Reduced sulfur compounds means hydrogen sulfide (H2S), 
carbonyl sulfide, and carbon disulfide.
    Reduction control system means an emission control system which 
reduces emissions from sulfur recovery plants by converting these 
emissions to H2S and either recycling the H2S to 
the reactor furnace or the first-stage catalytic reactor of the Claus 
sulfur recovery plant or converting the H2S to a sulfur 
product.
    Refinery process unit means any segment of the petroleum refinery in 
which a specific processing operation is conducted.
    Sulfur pit means the storage vessel in which sulfur that is 
condensed after each Claus catalytic reactor is initially accumulated 
and stored. A sulfur pit does not include secondary sulfur storage 
vessels downstream of the initial Claus reactor sulfur pits.

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    Sulfur recovery plant means all process units which recover sulfur 
from HS2 and/or SO2 at a petroleum refinery. The 
sulfur recovery plant also includes sulfur pits used to store the 
recovered sulfur product, but it does not include secondary sulfur 
storage vessels downstream of the sulfur pits. For example, a Claus 
sulfur recovery plant includes: Reactor furnace and waste heat boiler, 
catalytic reactors, sulfur pits, and, if present, oxidation or reduction 
control systems, or incinerator, thermal oxidizer, or similar combustion 
device. Multiple sulfur recovery units are a single affected facility 
only when the units share the same source of sour gas. Sulfur recovery 
plants that receive source gas from completely segregated sour gas 
treatment systems are separate affected facilities.