In this week’s episode of R-Squared Energy TV, I answer questions about natural gas liquids and algal fuel. Some of the topics discussed are:
- The difference between natural gas liquids (NGLs) and crude oil
- How NGLs and “all-liquids” contribute to oil supplies
- How “double-counting” and net energy impact the reported oil supply numbers
- The challenge of water in making algal fuel economical
- Whether algal fuels have long-term process
One thing I want to clarify about natural gas liquids. According to the Energy Information Administration, the lease condensate is defined as “a mixture consisting primarily of pentanes and heavier hydrocarbons which is recovered as a liquid from natural gas in lease separation facilities. This category excludes natural gas plant liquids, such as butane and propane, which are recovered at downstream natural gas processing plants or facilities.” In this case, “Crude Oil Plus Lease Condensate” will include some liquids that were condensed from natural gas, but then the “All Liquids” category that is commonly reported as global crude oil production will include the stream specifically defined as NGLs. The difference is that the NGLs require a natural gas plant to separate (i.e., they require more processing than lease condensate).
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