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Petroleum Refineries - Catalytic Cracking Units, Catalystic Reforming Units, & Sulfur Recovery Units

Air Toxics Notebook

Petroleum Refineries - Catalytic Cracking Units, Catalystic Reforming Units, & Sulfur Recovery Units

Applicability

eCFR Subpart UUU [ecfr.gov]

This subpart applies to:

  1. Affected sources at petroleum refineries that are Major Sources of HAPs*.

Affected sources:

  1. Process vents or groups of process vents for any of the following:
    1. Fluidized catalytic cracking units that are associated with catalyst regeneration;
    2. Catalytic reforming units that are associated with catalyst regeneration, including vents used during unit depressurization, purging, coke burn, and catalyst rejuvenation;
    3. Claus or other types of sulfur recovery plant units or the tail gas treatment units serving sulfur recovery plants that are associated with sulfur recovery;
  2. Bypass lines serving catalytic cracking units, catalytic reforming units, or sulfur recovery units.

*Major Sources of HAPs emit or have the potential to emit:

  • ≥ 10 tons/year of any single HAP; or
  • ≥ 25 tons/year of total HAPs.
  • Area Sources emit less than Major Sources.


Not subject to this subpart:

  1. Thermal catalytic cracking units;
  2. Sulfur recovery units that do not recover elemental sulfur, or where the modified reaction is carried out in a water solution that contains a metal ion capable of oxidizing the sulfide ion to sulfur;
  3. Redundant sulfur recovery units not located at a petroleum refinery that are used by the refinery only for emergency or maintenance backup purposes;
  4. Equipment associated with bypass lines, such as low leg drains, high point bleed, analyzer vents, open-ended valves or lines, or pressure relief valves needed for safety reasons;
  5. Gaseous streams routed to a fuel gas system.
Rules apply to small, area sources?
No
Known Sources in NDEE Jurisdiction

No

Date of Original Final Rule
Amendments Dates

07/13/2016 - Amendments
12/01/2015 - Final Rule
04/20/2006 - Amendments
02/09/2005 - Amendments

State Regulations

Title 129, Chapter 13, Section 002.53

Previously: Chapter 28, Section 001.54.

Sources are also responsible for ensuring they are in compliance with current federal requirements found for this subpart in the CFR

Federal Regulations
40 CFR 63.1560
Related Rules

NSPS – 40 CFR Part 60

Subpart J & Ja – Petroleum Refineries
Subpart GGG & GGGa – Petroleum Refineries (equipment leaks)
Subpart QQQ – Petroleum Refinery Wastewater Systems

 

NESHAP - 40 CFR Part 63

Subpart CC - Petroleum Refineries

Regulations and Federal Registers

eCFR Subpart UUU [ecfr.gov]

 

295 KB3U - Fed. Reg. 2016-07-13 - Final Rule; Amendments.pdf
3,652 KB3U - Fed. Reg. 2015-12-01 - Final Rule.pdf
291 KB3U - Fed. Reg. 2006-04-20 - Final Rule; Amendments.pdf
349 KB3U - Fed. Reg. 2005-02-09 - Direct Final Rule; amendments.pdf
392 KB3U - Fed. Reg. 2002-04-11 - Final Rule.pdf
Important Dates

Source Classification

  1. Existing Sources = Commence construction or reconstruction on or before September 11, 1998.
  2. New Sources = Commence construction or reconstruction after September 11, 1998.
FAQ's, Fact Sheets, and Rules Summaries

Texas CEQ - Rule Flowchart [tceq.texas.gov]

EPA's Subpart UUU Website [epa.gov] - contains federal register notices and technical information

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