A blender pump used in fuel distribution blends the contents from two or more different storage tanks to derive a single fuel blend product for distribution. This is common in the gasoline refining industry as they change blends to match seasons.
The mixtures required for the use of ethanol and biofuels has created a wide need for blend pumping as the octane levels are different for each product. Blender pumps will continue to get more sophisticated as the number of base biofuels increases and the need to adjust the octane levels for each different type of vehicle is needed.
A fuel blend is a mixture of 2 or more fuels…
According to the Alternative Fuels Data Center:
Blending different amounts of alternative fuel with conventional fuel is one way to limit petroleum usage. Examples of low-level fuel blends include E10 (10% ethanol/90% gasoline), B5 (5% biodiesel/95% diesel), and B2 (2% biodiesel/98% diesel). Fuel blends can also consist of two types of alternative fuels, such as hydrogen and highly compressed natural gas (HCNG), which can be an aggregate of 20% hydrogen/80% CNG. B20 (20% biodiesel/80% diesel) and E85 (85% ethanol/15% gasoline) are not considered low level blends. Source: Alternative Fuels Data Center