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- 3 Krre4r1Tt98 3 Rp.&.ed Amended Rule 431.1 Sulfur Content of Gaseous Fuels o1jJ. Definitions: For the purpose of this rule, the following definitions shall apply: (1.—RhNMT—OR-PRQGISS—GAS—Is.amy—Hqu1s4edp.speleum

gas -eP—gas -game Pa%edby.ap.t.1.um.p.g4m Smg—sa—an (jj GASEOUS FUELS ae Include, jj limited

iL
any

natural, process, synthatic landfill, sewage digester or waste gases with a gross heating value

of ev. 2610 kilogram calories per cubic meter (300 BTU per cubic foot) or higher, at standard conditions. as.aui—fwe1s—de.met.Ims1wd...gai.s gemeat.d— 1es—satayst —eg.meatSea-Sm -a —aataytto çijgj LANDFItL GAS Is any gas derived through a natural process from the decomposition of organic waste buried within a waste disposal site, which consists mainly of methane and carbon dioxide. ()j1 SEWAGE DIGESTER GAS is any gas derived from an anaerobic decomposition of organic sewage within its containment, which consists mainly of methane and carbon dioxide. Proposed Amended Rule 431.1 .2— ( 46fJ_ BURNING means the combustion of gaseous fuels, whether

for useful heat or by incineration without heat recovery, except for flaring of emergency vent gases. (a)J Requirements: (1) A person shall not sell any gaseous fuel, containing sulfur compounds in excess of 80 ppm (parts per million calculated as hydrogen sulfide except landfill gas or sewage digester gas. (2) A person shall not sell landfill gas or sewage digester gas containing sulfur compounds in excess of 250 ppm Calculated

as hydrogen sulfide. (3——tfeG54v..Jamuay—1,49B,-a-peFson—sba1l..noL.seH s.wage-d1q.st.,—gas-somta1nmg.sul(us—somp.um4s-4m (4)jJ. Notwithstanding the provisions of subsections (ajJ(I), or a)jj(2)

e..a)() of this rule, a person may sell an gaseous fuel provided that:-

(A) The gaseous fuel Is delivered directly to a sulfur removal unit which reduces the sulfur content to, or below the limit of subsection (a)jl(1), or a1jJ(2)

as applicable, and

.

- e :b. Proposed Rmended Rule 431.1 —3— (B) The seller notifies the Executive Officer prior to
any

such sale, of the quantity, heat value, and composition of the the gaseous fuel to be sold.
and (C) The buyer has an approved Permit to Construct and/or Permit to perate for the sulfur removal unit that wifl be used to treat the purchased gas. ()jj) A person shall not burnL nor discharge to fuel system or vent disposal system, amy.ef4nqmy—g.s, pcgcessas,-oc-other gaseous fuel containing sulfur compounds In excess of 800 ppm calculated as hydrogen sulfide,, unless sulfur compounds In the stack gases are reduced to a level below that which would be emitted when us1n a fuel which compiles with the requirements of this subsection. For purposes of this subsection, the 800-ppm limit shall ppj to the gaseous fuel as vented from a process unit or, if appltcabl as vented from a sulfur removal unit. t’)jj Exemptions: The provisions of this rule shall not apply to: Proposed Amended Rule 431.1 —4- .

(2) Burning of waste gases provided that the gross heating value of such gases is less than 2670 kI)ogram.calories

per cubic meter (300 BritIsh Th•r.al Units per cubic foot) at standard conditions and any fuel used to mctp•pate burn such waste gases does not contain sulfur

or sulfur compounds in excess of the amount specified in
this rule. (3) Sawag..dq.step.qai. Burning of the following gases from equipment or processes subject to Regulation Xl:
jJ FCCU regeneration gases lRule 1105).
1!J. Combined exit gases from an air pollution control system for steam drive oil wells (Rule LL48j provided that gases from individual well vents comply with the requirements of this rule. Gases vented during refinery turnaround pursuant to Rule 1123. .LJ. Cases vented to a control system p.rsuant !.. !Y.i! 4)jJ Gaseous fuels from which the gaseous products of combustion are used as raw materials fpr other processes.

(1) Gaseous sulfur compounds used in manufiGluFe the preduc1qn of sulfur or sulfur cOpOundi. aA.‘0 

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