Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 100 - Water Quality Standards Implementation › Subchapter 31 - Control of Emission of Sulfur Compounds › Part 1 - GENERAL PROVISIONS › Section 252:100-31-2 - Definitions

Current through Vol. 41, No. 20, July 1, 2024
The following words or terms, when used in this subchapter,
					 shall have the following meaning, unless the context clearly indicates
					 otherwise:
"Alternative fuel"
means fuel derived from any
					 source other than petroleum, natural gas, or coal. Alternative fuel includes,
					 but is not limited to, biogas, waste-derived fuel, recycled tires, tire-derived
					 fuel, and wood fuel as defined in OAC
					 252:100-19-1.
"Black liquor solids"
means the dry weight of
					 the solidsthat enter the recovery furnace in the black liquor.
"Digester system"
means each continuous
					 digester or each batch digester used for the cooking of wood in white liquor,
					 and associated flash tank(s), blow tank(s), chip steamer(s), and
					 condenser(s).
"Fossil fuel-fired steam generator"
means a
					 furnace or boiler used in the process of burning fossil fuel for the primary
					 purpose of producing steam by heat transfer.
"Kraft pulp mill"
means any pulp mill process
					 facility that produces pulp from wood by cooking (digesting) wood chips in a
					 water solution of sodium hydroxide and sodium sulfide (white liquor) at high
					 temperature and pressure. Regeneration of the cooking chemicals through a
					 recovery process is also considered part of the kraft pulp mill.
"Lime kiln"
means a unit used to calcine lime
					 mud, which consists primarily of calcium carbonate, into quickline, which is
					 calcium oxide.
"Multiple-effect evaporator system"
means the
					 multiple-effect evaporators and associated condenser(s) and hotwell(s) used to
					 concentrate the spent cooking liquid that is separated from the pulp (black
					 liquor).
"Petroleum and natural gas process equipment"
means the process equipment used to convert crude petroleum and/or natural gas
					 into refined products. Petroleum and natural gas process equipment includes,
					 but is not limited to, distillation columns, treating columns, catalytic
					 cracking units, catalytic reforming units, sulfur removal equipment, petroleum
					 coke units, flares, heat exchangers, reboilers, jet ejectors, compressors,
					 recompressors, and any other auxiliary equipment pertinent to the
					 process.
"Petroleum and natural gas process facility"
means a facility that is engaged in converting crude petroleum and/or natural
					 gas into refined products. Petroleum and natural gas process facilities include
					 petroleum refineries and natural gas processing plants (as defined in
					 40
					 CFR §
											60.631 ), but do not include
					 petroleum and natural gas production, gathering, and transportation
					 facilities.
"Recovery furnace"
means either a straight
					 kraft-recovery furnace or a cross-recovery furnace, and includes the
					 direct-contact evaporator for a direct-contact furnace.
"Smelt-dissolving tank"
means a vessel used
					 for dissolving the smelt collected from the recovery furnace.
"Sulfur recovery unit"
means a process device
					 that recovers elemental sulfur from acid gas.
"Sweetening unit"
means a natural gas
					 processing device that removes hydrogen sulfide and carbon dioxide from the gas
					 stream.
"Total reduced sulfur"
or
"TRS"
means the sum of the compounds hydrogen sulfide, methyl mercaptan, dimethyl
					 sulfide, and dimethyl disulfide.
Added at 11 Ok Reg
					 977, eff 1-14-94 (emergency); Added at 11 Ok Reg 2031, eff 5-26-94; Amended at
					 19 Ok Reg 1014, eff 6-1-02; Amended at 20 Ok Reg 1576, eff 6-12-03; Amended at
					 29 Ok Reg 996, eff 7-1-12