Reducing emissions from refining
The global climate is warming up and countries and individual companies are seeking ways to reduce their emissions to slow down climate change. Looking at oil refineries, one may wonder from where their own emissions emerge.
Many valve emission presentations refer to a certain EPA study from the 1980s. Studies from this time show that valves are the main source of fugitive emissions from a refinery, up to 60-80%. This would imply that emission reduction should start from valves, but is this still the status of fugitive emissions today? No, it’s not.
While calculating the valve fugitive emissions of a whole oil refinery, one can learn from the website of the EPA that an oil refinery with an annual production capacity of around 500 000 barrels per day will emit around 78 million metric tons of CO2e annually. From a valve user and manufacturer point of view, one interesting question worth asking is, “How much of the refinery emissions come from valves?”
Valves with modern ISO 15848 fugitive emission certificates emit very little. If a refinery has ISO-certified valves and they are properly maintained, fugitive emissions from valves can represent as little as 0.0000004% of the total refinery emissions. That is, the traditional 60% is really, really far from today’s number! If this is the case, what can I do to reduce my emissions?
In addition to direct (scope 1) emissions, an automated valve package containing a valve, an actuator, and a positioner contributing to refinery emissions indirectly, through scope 2 emissions. That is, actuators and positioners consume compressed air. Production of the compressed air will cause emissions. These emissions can be converted to CO2e along with the fugitive emissions.
This was an observation made in the Fugitive Emissions webinar: my positioners may be emitting more than my valves. If you want to learn more, please check out the webinar recording titled Reducing fugitive emissions from refining: how much do valves really contribute and what is their reduction potential?
Director, Technology Development
We really have looked at this through the eyes of the customer. The Neles™ XH metal-seated ball valve has been designed to deliver benefits across its entire lifecycle, ...
The Neles XH series has recently been updated to cover a wider range of sizes and requirements. The reason for bringing new offering to market can be found in our customers. ...
The global climate is warming up and countries and individual companies are seeking ways to reduce their emissions to slow down climate change. Looking at oil refineries, ...
The pace of change is picking up in the once-conservative hydrocarbon industries. Many interesting initiatives are underway as these sectors look to play their part in ...
In this webinar, we will delve into real-world case studies to demonstrate how digitalization can enhance valve performance, streamline life cycle management, and deliver ...
Processes in the most hazardous areas have long been limited to individual discrete/analog sensors or to fieldbuses that are too expensive, complex, and slow. As technology ...
Process efficiency can be defined as optimal flow capacity, minimized emission and leakage, and low energy consumption. At the same time, the first two contribute to ...
Using ball valves for flow control allows a delayed-coker unit to continuously run at full capacity, making them the ideal control valve for these high solid applications. ...
Under pressure, the hydrogen molecule H2 cracks metal and can even penetrate steel. Hydrogen fracture weakens the tensile strength and ductility of steel, which reduces ...
Does hydrogen present any special issues related to service hardware compared to other gases? Hydrogen certainly presents challenges to hardware design and construction. ...