BlackPak successfully demonstrated the technical viability of using low pressure adsorbed natural gas storage on a light-duty vehicle. The vehicle was tested on a chassis dynamometer and showed a 20 percent reduction in carbon dioxide emissions and maintained equivalent or lower hydrocarbon, carbon monoxide, and nitric oxide emissions when using natural gas. In addition, BlackPak demonstrated that adsorbed natural gas storage tanks are at least as safe as conventional compressed natural gas tanks. The project was completed in June 2017. The final report will be available online soon.
This project developed and tested adsorbed natural gas on-board storage systems capable of storing natural gas at lower pressures using microporous carbon. The project developed an adsorbed natural gas storage tank suitable for light-duty passenger vehicles which can drive down costs to a price that is considered competitive and viable with conventional gas storage tanks.
The economics of an adsorbed natural gas co-fuel vehicle is comparable to those of electric vehicles with purchase price savings of at least 40 to more than 50 percent with equivalent costs per mile driven. The low-pressure system also enables home refueling options using lower cost compressors.
When operated in natural gas mode, the adsorbed natural gas co-fuel vehicle exhibited 20 percent reduced carbon dioxide emissions compared to gasoline operation. Other pollutants (nitric oxide, hydrocarbon, carbon monoxide) were measured to be equivalent or lower during natural gas operation compared to gasoline operation. These measurements were obtained from a chassis dynamometer test over the UDDS and HWFET cycles.
Burst, bonfire, gunfire, and highly accelerated life test results indicate that the adsorbed natural gas tank is at least as safe as a conventional compressed natural gas tank. This project validated that the addition of carbon sorbent material inside a pressurized tank does not significantly affect the safety or integrity of the tank.
Key Project Members
VForce, VForce Consulting, VForce Security