Bio-LNG-greener than gas?

摘要

LNG is one of the cleanest fossil fuels currently available and produces particularly low levels of NOx when burned. It contains virtually no sulphur, hence SOx emissions from engines designed to burn natural gas are negligible. As it burns very cleanly, it produces very few paniculate emissions and contains more hydrogen and less carbon than diesel fuels, CO_2 emissions are reduced. Yet another advantage of LNG is that it has a high energy density, but as Dutch researchers pointed out recently, there is more than one type of LNG available for bunkering ships (that is, other than fossil-fuel LNG). Bio-LNG could, they say, have all the advantages of LNG, and more besides. This was the conclusion of a research project completed recently by the Holland Innovation Team (HIT), whose core business is launching innovative ideas, transforming them into feasible projects and developing new business ventures. It was asked by Senter Novem (part of the Dutch Ministry of Economic Affairs, which works on behalf of organisations such as the European Union and the International Energy Agency, to carry out a study to compare the benefits of bio-LNG (liquid bio-methane) and compressed bio-methane with other biofuels.