Does anyone know about the progress in desulfurization technologies for hydrogenated naphtha?
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The sulfur content in the naphtha produced by diesel hydrogenation units is around 20 ppm or less; how can this sulfur content be removed from the naphtha?
For the catalytic fractionation unit in our plant, light naphtha has a high sulfur content; heavy naphtha is usually treated with alkali washing and water washing, but these methods are not very effective. After carrying out technical upgrades, we now use dry desulfurization, employing zinc oxide-based desulfurization tanks for this purpose! The effect is fairly good; the residual sulfur content in naphtha, as well as the sulfur content in the raw materials, and the degree of reaction are all closely related to the operation of the stripping tower! It is necessary to adjust the process parameters in a timely manner; determine whether sulfur in the oil exists in organic or inorganic form, and then take measures to remove it