In gasoline hydrogenation, is the thiol sulfur content in light gasoline greater than 10, and is it also greater than 10 ppm in heavy gasoline?
Thread Content
The original catalyst is used for gasoline; the sulfur content in the form of thiol sulfides is around 57. The pre-hydrogenation temperature is 135, and the hydrogen-to-oil ratio is around 7. What is the ratio of hydrogenated gasoline to heavy gasoline, approximately? 1.5 to 8.5? Why still?
We have installed a gasoline hydrogenation unit that first uses a pre-hydrogenation reactor, then proceeds to a pre-distillation tower, followed by selective hydrodesulfurization, and finally an octane number recovery reactor. The thiol sulfur content in the catalyzed gasoline is above 50, but the thiol sulfur in the resulting heavy gasoline cannot be completely removed
Above 10 ppm, and the doctor’s experiment also fails – what causes this?
The reason why the test fails at levels below 10 PPm in Dr. experiments is that thiol sulfur belongs to macromolecules, resulting in high sensitivity
As for the poster’s confusion, my personal analysis is that the pre-hydrogenation reaction was not properly carried out, resulting in the failure of low-molecular-weight thiol sulfurs to be transferred
But if the sulfur content of heavy gasoline thiols is below 10 parts per million, did the test still fail?
Raise the temperature of the RON recovery reactor