The advantages to LNG, along with its availability and affordability, are that the liquid form of the gas is energy dense and transportable, and that as methane, it’s the cleanest burning hydrocarbon and therefore will be more environmentally acceptable, explains Scott Hartman, downstream LNG application specialist for Shell. Compared to CNG, which is commonly moved through pipeline networks and requires additives for transport safety, LNG is much more pure. And that means fewer engine deposits.  The proving ground for LNG trucks is China, where there are more than 330,000 medium- and heavy-duty trucks on the road, according to Shell—and that number is expected to triple in the next five years . That compares to about 23,000 in the U.S. and only 2,000 in Europe.
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