Phillips Petroleum reportedly has developed a more economic way to reduce the sulfur content of diesel fuel. Termed “S Zorb,” the technology is based on use of a regenerable sorbent requiring nearly zero net hydrogen consumption, a critical issue for hydrogen-scarce refineries. This eliminates the need to produce the expensive hydrogen employed in traditional hydrotreating of fuel to remove the sulfur. Another advantage is that the sorbent material can be regenerated at the same time the ...

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