SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT

RULE 465. REFINERY VACUUM-PRODUCING DEVICES OR SYSTEMS
(Adopted May 7, 1976)(Amended March 3, 1978)(Amended March 2, 1979)
(Amended April 4, 1980)(Amended December 7, 1990)(Amended November 1, 1991)
(Amended August 13, 1999)


(a) Applicability
The provisions of this rule shall apply to all volatile organic compound emissions and sulfur compound emissions from any petroleum refinery vacuum-producing devices or systems, including hot wells and accumulators.

(b) Definitions

(1) ACCUMULATOR is a tank or chamber for collecting and temporarily storing a condensed petroleum distillate which is the interim product in a refinery process.

(2) EXEMPT COMPOUNDS are as defined in Rule 102.

(3) HOT WELL is a chamber for collecting water condensate which is contaminated with the product of a refinery process.

(4) VACUUM-PRODUCING DEVICE OR SYSTEM means any device or system which acts to maintain the pressure inside a petroleum refinery process vessel below 14.7 pounds per square inch, absolute.

(5) VOLATILE ORGANIC COMPOUND (VOC) is as defined in Rule 102.

(c) Requirements

(1) Hot wells and accumulators shall be equipped with covers.

(2) Exhaust gases from vacuum-producing devices or systems, including hot wells and accumulators, shall be continuously collected and added to a fuel gas system or combustion device that has been approved and issued a permit by the Executive Officer in accordance with all applicable District rules applicable to such a device.