Colorado Refining Company - Executive Summary |
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Colorado Refining Company is a crude oil refinery. Protecting our employees, the public and the environment is a requirement at our facility. We have an extensive environmental, health and safety program which involves all employees. We have an Environmental and a Safety Department. We have a 35 member Emergency Response Team that is trained to respond to chemical emergencies, fires and medical emergencies. We have mutual aid training for our responders with our neighboring facilities and with the South Adams County Volunteer Fire Department. Our processes are covered by OSHA's Process Safety Management Program. Our responders attend training at the University of Nevada, Reno for live fire training. Our responders are also, certified with the Division of Fire Safety in Colorado. General Executive Summary for Chemical, Manufacturing and Oil Refining Facilities 1. Accidental Release Prevention and Emergency Response Policies We at Colorado Refining Company are strongly committed to emp loyee, public and environmental safety. This commitment is demonstrated by our comprehensive accidental release prevention program that covers areas such as design, installation, operating procedures, maintenance, and employee training associated with the processes at our facility. It is our policy to implement appropriate controls to prevent possible releases of regulated substances. Unforeseeably, if such a release does occur, our highly trained emergency response personnel are at hand to control and mitigate the effects of the release. We are also completely coordinated with South Adams County Volunteer Fire Department which provides additional emergency response expertise. 2. The Stationary Source and the Regulated Substances Handled Our facility's primary activities encompass Petroleum Refining. We have 16 regulated substances present at our facility. These substances include Pentane, Isopentane [Butane, 2-methyl-], Isobutane [Propane, 2-methyl], Propane, Butane, Ethane, Ammonia, Butene, Propylene [1-Propene], Methane, Hydrogen, 1-Pentene, Hydrogen sulfide, Ethylene [Ethene], Chlorine and Acetylene [Ethyne]. The regulated substances at our facility are involved in several uses. Pentane is used for gasoline blend component. Isopentane [Butane, 2-methyl-] is used for gasoline blend component. Isobutane [Propane, 2-methyl] is used for sales. Propane is used for sales. Butane is used for sales & gasoline blend component. Ethane is used for fuel gas. Ammonia is used for refrigeration in our Absorbtive Ammonia Refrigeration Unit. Butene is used for feed stock for the Polymerization Unit. Propylene [1-Propene] is used for feed stock for the Polymerization Unit. Methane is used for fuel gas. Hydrogen is used for fuel gas & used in the Hydrotreating Unit and Reformer. 1-Pentene is used for gasoline blend component. Hydrogen sulfide is a byproduct of certain process units & feed stock to the Sulfur Unit. Ethylene [Ethene] is used for fuel g as. Chlorine is used for water treatment for the cooling water. Acetylene [Ethyne] is used for welding. 3. The Worst Case Release Scenario(s) and the Alternative Release Scenario(s), including administrative controls and mitigation measures to limit the distances for each reported scenario To evaluate the worst case scenarios, we have used the look-up tables and equations provided by the EPA in the RMP Offsite Consequence Analysis Guidance as well as EPA's RMP*Comp(TM) and Equations from Appendix D of the EPA's Offsite Consequence Analysis Guidance. For alternative release scenario analyses, we have employed EPA's RMP*Comp(TM). The following paragraphs provide details of the chosen scenarios. The worst case release scenario submitted for Program 2 and 3 flammable substances as a class involves a catastrophic release from an Iso- Butane Storage Tank in the East Tank Farm - Liquefied Petroleum Gas (LPG) Storage process. The scenario involves the release of 227,850 lb. of Isobut ane [Propane, 2-methyl]. It is assumed that the entire quantity is released as a vapor, which finds an ignition source, with 10 percent of the released quantity participating in a vapor cloud explosion. Under worst case weather conditions, the maximum distance of .5 miles is obtained corresponding to an endpoint of 1 psi overpressure. The alternative release scenario submitted for Program 2 and 3 flammable substances involves a release from a Propane Rail Car hose. The release is assumed to result in a Vapor Cloud Explosion. The scenario involves the release of 18 lb. of Propane in five minutes. The release is also controlled by active mitigation measures that include Emergency Shut Off. Under neutral weather conditions, the maximum distance to the flammable endpoint of 1 PSI overpressure is 0.02 miles. 4. The General Accidental Release Prevention Program and the Chemical-Specific Prevention Steps Our facility has taken all the necessary steps to comply with the accidental r elease prevention requirements set out under 40 CFR part 68 of the EPA. This facility was designed and constructed in accordance with NFPA-58 Standard, 1967 Edition. A number of processes at our facility are subject to the OSHA PSM standard under 29 CFR 1910.119. Our facility is also subject to EPCRA Section 302 notification requirements. We also have an air operating permit ID under Title V of the Clean Air Act. The following sections briefly describe the elements of the release prevention program that is in place at our stationary source. Process Safety Information Diamond Shamrock Refining & Marketing maintains a detailed record of safety information that describes the chemical hazards, operating parameters and equipment designs associated with all processes. Process Hazard Analysis Our facility conducts comprehensive studies to ensure that hazards associated with our processes are identified and controlled efficiently. The methodology used to carry out these analyses is H azard and Operability Study (HAZOP). The studies are undertaken by a team of qualified personnel with expertise in engineering and process operations and are revalidated at a regular interval of (time period). Any findings related to the hazard analysis are addressed in a timely manner. Operating Procedures For the purposes of safely conducting activities within our covered processes, Diamond Shamrock Refining & Marketing maintains written operating procedures. These procedures address various modes of operation such as initial startup, normal operations, temporary operations, emergency shutdown, emergency operations, normal shutdown and startup after a turnaround. The information is regularly reviewed and is readily accessible to operators involved in the processes. Training Diamond Shamrock Refining & Marketing has a comprehensive training program in place to ensure that employees who are operating processes are competent in the operating procedures associated with these proces ses. Refresher training is provided at least every three years and more frequently as needed. |