详情

原文传递 Steady Stream

题名：	Steady Stream
正文语种：	eng
作者：	Bruce Bills
摘要：	It's the 2020s and maritime companies are starting to scramble, like it or not, to cut greenhouse gas emissions. For those operating under the International Maritime Organization rules, the established guidelines for decarbon-ization targets a 40% reduction by 2030 and 70% by 2050, compared with 2008 emissions. For others, it's demand from customers that motivates decarbonization. And for a few, it's just the right thing to do. One way to reduce carbon emissions is to simply burn less fuel by increasing efficiency and reducing speed, but those strategies are limited and sometimes impractical. Another method is to operate on an alternative fuel, such as LNG, hydrogen, methanol, ammonia or electricity. Of these, LNG has been adopted at the largest scale, so far. Natural gas, of course, is itself a fossil fuel, but it does burn more cleanly than fuel oils such as diesel. Burning LNG creates emissions with almost no particulate matter or sulfur oxides, and nitrous oxides are greatly reduced. As such, liquified natural gas as a marine fuel is compliant with both SOx and NOx emission limits in coastal Emission Control Areas (ECAs). It's also seen as a bridge to low-carbon or zero-carbon marine operations. Burning LNG as a marine fuel does emit less CO2 than traditional fuel oils - about 21%-28% less - depending on how it's measured and whether it's calibrated from well-to-wake, which includes all production and distribution emissions, or tank-to-wake.
出版年：	2022
期刊名称：	Work Boat
卷：	79
期：	3
页码：	28-30,32