Can an MTBE plant ensure a sulfur content of less than 10 ppm through a degasification tower?
Thread Content
Liquefied gas undergoes double desulfurization, resulting in a sulfur content of around 50 ppm; it then enters the MTBE unit. Would adding a dewaxing tower before the mixed C4 enters the reactor be sufficient to ensure that the sulfur content in MTBE is below 10 ppm?
Theoretically, it is possible to achieve this; in the isomerization of butylene, the sulfur content is removed in this way. However, mass is conserved, and ultimately sulfur still leaves through other means
Adding a desulfurization tower dedicated to removing carbon tetrathiide (not a distillation tower, but rather similar to a reactor, functioning primarily through physical desulfurization adsorption) yields very good results, with levels remaining well below 10 ppm
Compared to the decarboxylation and four-stage distillation unit, the MTBE desulfurization tower has lower energy consumption.
We use MTBE for desulfurization