In a quest for sustainable and efficient transportation solutions, a pioneering group of researchers at the Massachusetts Institute of Technology (MIT) has embarked on a groundbreaking endeavor. Their focus is on developing a disruptive technology that not only has the potential to revolutionize hydrogen transportation and storage but also plays a pivotal role in decarbonizing the fossil fuel-intensive long-haul trucking industry.
At the core of this innovation lies the concept of liquid organic hydrogen carriers (LOHCs) – a group of compounds designed for energy storage and transport. These LOHCs consist of hydrogen-rich organic molecules possessing a remarkable ability to absorb and release hydrogen in a reversible manner. This unique property makes them an ideal choice for storing and transporting molecular hydrogen, offering an appealing alternative to conventional hydrogen storage methods.
MIT's innovative approach, spearheaded by William H. Green and his research team, aims to maximize efficiency by implementing an onboard dehydrogenation process in LOHC-powered trucks. This novel strategy leverages waste heat from the engine exhaust to drive the dehydrogenation process, unlocking the full potential of LOHCs for hydrogen transport.
Here's a breakdown of the process: The truck's powertrain undergoes modifications to enable the release of onboard hydrogen from the LOHC. Waste heat from the engine exhaust is utilized to power the dehydrogenation process within a high-temperature reactor. This reactor consistently receives hydrogen-rich LOHC from the fuel storage tanks.
Prior to reaching the engine, a portion of the released hydrogen is redirected to burners, which further heat the reactor. This dual heating method optimizes the dehydrogenation process by making use of both engine exhaust gases and additional burner heat, ensuring efficient hydrogen extraction from the LOHCs.
