Source: U.S. Environmental Protection Agency
quote: Can you imagine trying to find and remove 20 of 30 grains of light colored sand from 999,970 grains of dark colored sand?
quote: How exactly will cutting sulfur reduce soot and smog. By stopping catalytic converter clogging? Please. You're supposed to replace the converter every so often anyway. Going from 30 parts per million to 10 is hardly a noticeable reduction.
quote: We're talking a 0.002% reduction in sulfur
quote: You can't dismiss a 66% reduction just because it's a tiny number.
quote: Do you know how bad your water would taste if it had 30 ppm hydrogen sulfide?
quote: So what? You can't dismiss a 66% reduction just because it's a tiny number.
quote: Do you know how bad your water would taste if it had 30 ppm hydrogen sulfide? It smells like rotten egg and corrodes your pipes at only 2 ppm:
quote: What's your basis for saying they're ridiculously high? The famed TDI engines from VW get very average emissions (Tier 2 Bin 5) compared to gas engines. Yes, particulate emission standards were a hurdle for diesel cars coming to the US. But high sulfur content of US fuel was also a problem for Euro emission systems.
quote: As an example, most diesel sold in western countries is ULSD (ultra low sulphur), where it's defined as 15 ppm. Now that the US has sulfur similar standards, diesel engines don't have to be redesigned to enter the US (hence more models becoming available). Unless you've done extensive research in the field, you have no basis for saying a 10 ppm standard is unduly burdensome.
quote: Sulfur differs from carbon in much more meaningfully ways than color. I have to question if you even passed highschool when you're making such a ludicrous analogy. Chemical methods can eliminate impurities to less than 1 ppm in many different materials.