tag:blogger.com,1999:blog-19093293.post5927562773907110929..comments2023-06-30T01:25:28.771-07:00Comments on SEABGB: Exhaust Scrubbers Do More Harm Than GoodUnknownnoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-19093293.post-70277701672416098332007-10-15T01:29:00.000-07:002007-10-15T01:29:00.000-07:00You are correct that the reaction of cidic exhaust...You are correct that the reaction of cidic exhaust gasses with sea water releases CO2. this is however only part of the story. there are two alternatives proposed to clean up shipping emissions other than the use of scrubbers.<BR/><BR/>Use low sulphur fuel.<BR/>Use low sulphur distillate fuel.<BR/><BR/>The shipping industry uses about 350MT of bunker fuel a year. there is not enough low sulphur crude around to satisfy this demand so the fuel will have to be processed. <BR/><BR/>Removing sulphur requires hydrogen which in turn has to be manufactured. this required energy aka CO2. More energy is wasted in this process than the corresponding release of CO2 in scrubbers.<BR/><BR/>Using distillates is very much worse. the cost about 2 times the price of residucla fuel for a reason. That reason is that it takes a great deal of energy to convert high density viscous residual fuel in to low sulphur low density distillates. In fact the International Energy Agency quote the net release of manufacturing 350MT of extra distillates to be equivalent to 150MT of CO2. <BR/><BR/>Scrubbing also removes particulates, expecially those very small ones that cause so many health problems. <BR/><BR/>Hope tis helps. <BR/>Chris Leigh-Jones<BR/>MD Krystallon LtdChris Leigh-Joneshttps://www.blogger.com/profile/15756928713811689067noreply@blogger.com