La. Admin. Code tit. 33 § III-2116

Current through Register Vol. 50, No. 6, June 20, 2024

Section III-2116 - Glycol Dehydrators

A. Applicability. The provisions of this rule shall apply to the owner or operator of any glycol dehydrator that:

1. is not required to install controls according to LAC:33.III.Chapter 51; or

2. is not required to install controls according to LAC:33.III.2115.

B. Requirements. Any glycol dehydrator not exempt under Subsection C of this Section shall have a control device with the following efficiency:

1. an existing glycol dehydrator, constructed prior to October 20, 1994, shall:

a. demonstrate to the administrative authority, using methods found in Subsection D of this Section, a 70 percent or greater reduction of still-column emissions; or

b. if the control device is a condenser, annually achieve an average final exhaust temperature less than 110°F;

2. a new glycol dehydrator, constructed on or after October 20, 1994, and not subject to LAC:33.III.2115 or Chapter 51, shall ensure an 85 percent or greater reduction of still-column emissions using approved methods found in Subsection D of this Section; and

3. a glycol dehydrator using a flare or other combustion device as a control device shall be deemed to have equivalent efficiencies to the control efficiencies of Subparagraph B.1.a and Paragraph B.2 of this Section provided the flare or other combustion device is permitted in accordance with LAC 33:III.Chapter 5. Glycol dehydrators using a flare as a control device shall ensure destruction of emissions to the flare stack by maintaining the heat content of the flare gas above 300 Btu/scf and by documenting daily visual observations of the continuous presence of a flame.

C. Exemptions. A glycol dehydrator is exempt from the requirements of this Section if any of the following conditions are met:

1. the owner can demonstrate to the administrative authority that the glycol dehydrator operates fewer than 200 hours per year; or

2. the owner can demonstrate to the administrative authority, using method or methods found in Subsection D of this Section, that the total uncontrolled VOC emissions from the glycol dehydrator are not in excess of 9 tons per year. Once the glycol dehydrator becomes an affected unit, it does not revert to an exempted unit when the emissions drop below 9 tons per year, unless otherwise exempted by the approval of the administrative authority.

D. Test Methods. The emissions from glycol dehydrators affected by Subsection A of this Section shall be determined using the following methods, as appropriate:

1. rich/lean glycol mass balance using pressurized sample, for determining uncontrolled emissions;

2. total capture stack condensation;

3. partial stack condensation;

4. conventional stack measurements using Methods 18 and 25 ( 40 CFR Part 60, Appendix A, as incorporated by reference at LAC 33:III.3003) for determining volatile organic compound emissions; or

5. alternative methods of testing as approved by the administrative authority.

E. Compliance Schedule. All facilities affected by this Section shall be in compliance as soon as practicable, but in no event later than October 20, 1996, except those facilities required to submit a Part 70 permit application. Facilities required to submit a Part 70 permit application shall be in compliance by April 20, 1996.

F. Recordkeeping. The owner or operator of any facility subject to this rule shall maintain the following information on the premises, or an alternative location approved by the administrative authority for at least five years and shall make the following information available to representatives of the Louisiana Department of Environmental Quality upon request:

1. a record of the results of any testing conducted in accordance with Subsection D of this Section;

2. the date of any maintenance and repair of the required control device and the duration of uncontrolled emissions during such activities;

3. glycol units subject to Subparagraph B.1.b of this Section shall maintain:

a. a record of final exhaust temperature and time observed recorded twice a week on different days during daylight hours; and

b. a record of all temperature exceedances greater than or equal to 120° F, the date of each temperature exceedance, and a brief explanation describing the circumstances of the temperature exceedance; and

4. glycol units for which exemptions are being claimed shall maintain:

a. a record of total hours of operation on an annual basis if claiming an exemption under Paragraph C.1 of this Section; or

b. a record of actual throughput per day and the glycol circulation rate if claiming an exemption under Paragraph C.2 of this Section.

G. Reporting Requirements

1. The owner or operator of a facility shall submit to the Office of Environmental Services a permit application after installation of controls unless exempt from permitting pursuant to LAC 33:III.Chapter 5.

2. If no permit is required pursuant to LAC 33:III.Chapter 5, the owner or operator of a facility shall submit to the Office of Environmental Services a new or updated emission inventory questionnaire after installation of controls.

La. Admin. Code tit. 33, § III-2116

Promulgated by the Department of Environmental Quality, Office of Air Quality and Radiation Protection, Air Quality Division, LR 20:1107 (October 1994), repromulgated, LR 20:1279 (November 1994), amended LR 21:941 (September 1995), LR 22:1212 (December 1996), amended by the Office of Environmental Assessment, Environmental Planning Division, LR 26:2452 (November 2000), amended by the Office of the Secretary, Legal Affairs Division, LR 31:2440 (October 2005), LR 33:2085 (October 2007).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2054.