Gas distribution systems are a key component in Alberta refineries. However, problems with a gas distribution system may result in excess fugitive emissions. This creates additional costs due to inefficiencies and may run afoul of Alberta emission regulations—regulations that are continually being updated based on changing environmental and societal needs.
This article will discuss issues within gas distribution systems that contribute to fugitive emissions, methods to reduce emissions, and how working with a trusted Alberta gas distribution system provider can equip your refinery with the components and support to reduce fugitive emissions.
Gas distribution systems are comprised of several components that are responsible for controlling the flow and pressure of gas. Each of these components is a potential source of fugitive emissions. The four major components (source inlet, primary gas pressure control, automatic changeover, and point-of-use) of a gas distribution system and the associated risks are discussed below:
The gas source is connected to the gas distribution system by the source inlet. There are several components of the source inlet, including cylinder connections, hoses, tubing, filters, vent, purge, and relief functions. The pressure from the gas source is often significant, and, as such, the components of the inlet must meet pressure standards. Components that fail to meet pressure standards will result in increased wear and tear and, ultimately, additional leaks releasing costly gases to the atmosphere.
The primary gas pressure control utilizes pressure regulators to reduce gas pressure to a safe and effective level for operations. Issues sometimes occur when needing to adjust delivery pressures based on the changing internal and external environment. This is particularly true in situations with changing temperatures. Incorrect control of pressure can cause damage to the system and leaks to occur.
An automatic changeover is needed to continuously supply the gas. The automatic changeover utilizes two pressure regulators that allow the gas source to be changed from the service cylinder to the reserve one, without shutting down operations. Poor design and implementation of the automatic changeover—as well as wear and tear—may result in fugitive emissions being released when changing between gas sources. Standardization within these panels can help mitigate fugitive emissions that occur as a result of poor design.
The point of use provides operators the ability to measure gas pressure and adjust gas based on needs. The point-of-use system involves a pressure regulator, gauge, and isolation valve. Leaks may occur if these components malfunction and pressure is either measured incorrectly or is not properly controlled.
Luckily, there are solutions to mitigate the causes of fugitive emissions.
Fugitive emissions are a concern for many industries in the region in terms of cost, operating issues, and environmental damage. There are several strategies that can help mitigate the amount of fugitive emissions.
A local gas distribution system provider will be familiar with Alberta’s emissions standards and can advise you on how to reduce fugitive emissions. Whether you’re working towards compliance with fugitive emissions standards or you want to exceed the minimum requirements for improved performance, you can trust Edmonton Valve & Fitting to provide advice and components to maximize your facility’s efficiency and reliability. Our expert Field Advisors can perform an onsite evaluation and give recommendations to help reduce fugitive emissions from your gas delivery system and other sources in your facility.
To find out more about how Edmonton Valve & Fitting can help you reduce fugitive emissions and improve efficiency with high-quality gas delivery systems and components, contact us through our website or by calling 780-437-0640.