KERN COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 414.5 - PUMP AND COMPRESSOR SEALS AT PETROLEUM REFINERIES AND CHEMICAL PLANTS
(Adopted 1/9/79, Amended 6/26/79, 11/27/79, 4/5/82, 8/22/89, 4/30/90, 5/6/91, 3/7/96)
This Rule applies to seals on pumps and compressors and associated seal fluid systems in petroleum refineries and chemical plants that may be the source of fugitive VOC emissions.
A. Background - a reading on a portable hydrocarbon detection instrument which is taken at least three meters upwind from any pump or compressor seal to be inspected and which is uninfluenced by any specific emission point.
B. Chemical Plant - an establishment that produces organic chemicals and/or manufactures products by organic chemical process.
C. Commercial Natural Gas - a mixture of gaseous hydrocarbons, chiefly methane and less than 10% VOC's excluding ethane as determined in accordance with ASTM Methods E168-67, E169-63, or E260-73, used as a fuel and obtained from a company licensed to dispense such gases.
D. Device - a pump or compressor at a refinery or chemical plant which handles a volatile organic compound or any associated seal fluid system which circulates a fluid through or between seals on process pumps or compressors.
E. Essential Device - any device which cannot be taken out of service without reducing by more than 33% the throughput of the process unit which it serves.
F. Leak -
G. Refinery - an establishment that processes petroleum as defined in the Standard Industrial Classification Code under 2911 - petroleum refining.
H. Portable Hydrocarbon Detection Instrument - a hydrocarbon analyzer which uses the flame ionization detection or thermal conductivity methods and satisfies Method 21, 40 CFR Part 60. The instrument shall be calibrated on methane and sampling at one liter per minute.
I. Process Unit - components assembled to produce intermediate or final products from petroleum, unfinished petroleum derivatives, or other intermediates which can operate independently if supplied with sufficient feed or raw materials and sufficient storage facilities for the product.
J. Volatile Organic Compound (VOC) - any compound containing at least one atom of carbon except for compounds exempted by Rule 102, Subsection L.
The provisions of this Rule shall not apply to:
A. Any device handling only commercial natural gas.
B. Any device handling material containing less than 10% by weight volatile organic compounds (as determined by ASTM Methods E-260-73,, E-168-67, or E-169-63.)
C. Any device exclusively handling heavy liquid streams which have less than 10% evaporation at 150°C as determined by ASTM Method D-86-78 provided the facility operator so identifies such components as outlined in Subsection V.A.
D. Ethane shall be excluded from the requirements of this Rule if the ethane content of the stream being handled is less than 20% by volume. A facility operator requesting exemption of ethane shall demonstrate by gas chromatographic analysis (qualitative and quantitative determination done in accordance with ASTM Method E-260-73), that such stream has an ethane content less than 20%.
a. replace the leaking device and inspect for leaks within three days after detection, or
b. vent emissions to a vapor recovery device that is at least 95% efficient as measured by EPA Method 25, or to a flare that satisfies the requirements of 40 CFR 60.18, or
c. repair the essential device to eliminate the leak during the next process unit shutdown, but in no case later than one year from the date of the original leak detection.
V. Administrative Requirements
A. Operator Management Plans
The management plan must include:
a. a description of any hazard which might affect the safety of an inspector;
b. identification of process units which cannot be immediately shutdown for repair of leaks;
c. identification of components for which an exemption in accordance with Subsection III.A. through III.F. of this Rule is requested;
d. specific identification of the resource commitment to a program to implement, inspect, and repair components;
e. schedule of quarterly inspections to be conducted in accordance with EPA Method 21.; and
f. repair procedures to be used within 15 calendar days following leak detection which results in compliance with the requirements of this Rule.
a. specify whether contractor or employee inspection will be used;
b. specify training standards for personnel performing inspections, and
c. provide leak detection training (using a portable hydrocarbon detection instrument) for new operators, and for experienced operators as necessary.
a. Name, location, type of components, and description of any unit where leaking components are found;
b. Date of leak detection, emission level (ppm) of leak, and method of detection;
c. Date and emission level of recheck after leak is repaired;
d. Identification of leaks that cannot be repaired until next process unit turnaround; and
e. Total number of components inspected, and total number and percentage of leaking components found.
C. Test Methods
a. Sampling measurements shall be performed with a portable hydrocarbon detection instrument in accordance with Method 21, 40 CFR Part 60.
b. Sampling of a seal shall be performed one centimeter from the outer end of the shaft seal interface or at a distance of one centimeter of any other point on the seal which could leak.
c. Sampling of atmospheric vents on pump and compressor seal fluid systems shall be measured in the plane of the opening of the vent at the centrad.
VI. Compliance Schedule
A. By November 1, 1991, the operator of a device shall be in full compliance with the requirements of this Rule.