Texas Petrochemicals Corporation - Executive Summary
This Risk Management Plan is for the Texas Petrochemical Corporation (TPC) facility in Baytown, Texas. TPC operates a terminal for mixed pentanes at this site. |
It is the policy of TPC to take all steps necessary to insure the safey of workers and the community. We are active in the Baytown Local Emergency Planning Committee, Channel Industries Mutual Aid, and East Harris County Manufacturers Association risk management.
The worst-case scenario would be the catastrophic failure of a pentane storage sphere. This could result in the loss of nearly 1,000,000 pounds of pentane over a 10 minute period. If that vapor cloud were to detonate in an unconfined vapor cloud explosion, the impact circle would reach offsite areas and have the potential to impact the public. A more realistic alternate release scenario would be a failure of a flange in a 250 foot section of 4 inch line. This could cause the release of 862 pounds of pentane, assuming that the operator could close the block valve
s to isolate the failure within 5 minutes. Ignition of this smaller vapor cloud would be unlikely to detonate, so it was evaluated as a vapor cloud fire which barely has the potential to reach across the property boundary. Minimal public impacts would be expected from this flammable alternative release scenario.
This facility is subject to OSHA Process Safety Management, and has been operating under PSM for many years. Release and fire prevention programs are mature and effective. While all the PSM elements are important, the key elements in our prevention efforts are process hazard analyses, mechanical integrity, and management of change. PHAs are an exercise in which the potential failures in the system are examined in great detail to try to anticipate every possible failure and to determine how well our safety sysems can control that condition. Mechanical Integrity is the combination of inspections, testing, and preventive maintenance that is designed to prevent mechanical fa
ilures. Management of Change is a rigorous process for reviewing the safety implications of any change proposed to the facility. These key elements are supported by process safety information, operating procedures, training, etc., to provide a comprehensive prevention program.
TPC has not had an accident over the last five years involving a regulated substance that meets the EPA critieria for the five-year accident history.
TPC has an emergency response team and a written emergency response plan. We are active participants in our local LEPC, CIMA, and local industry groups. We exercise and drill our emergency response annually and carefully evaluate the effectiveness to look for ways to improve.
TPC has a mature safety program and good performance in preventing accidents. There are no additional specific changes planned to improve safety, but our prevention efforts are a process in which continuous improvement is the goal.