Methyl tert butyl ether desulfurization rectifying column roof pressure stabilising arrangement

The utility model relates to a methyl tert butyl ether desulfurization rectifying column roof pressure stabilising arrangement, including desulfurization rectifying column, top of the tower cooler, top reflux jar, top of the tower pressure control valve, top reflux pump, top of the tower temperature control valve and fluid level control valve, the top of the tower of desulfurization rectifying column passes through parallelly connected top of the tower cooler of pipeline and top reflux jar, and top of the tower pressure control valve installs on a way of desulfurization rectifying column and the connection of top reflux jar, and the top reflux pump passes through the tube coupling with the bottom of top reflux jar, and the top reflux pump passes through parallelly connected desulfurization rectifying column of pipeline and fluid level control valve, wherein, installs the branch road of fluid level control valve and sees the pipeline off for the product, and top of the tower temperature control valve installs on a way of top reflux pump and desulfurization rectifying column. The utility model discloses but the rectifying column operation is stabilized to the effective control tower top pressure, ensures the high accuracy desulfurization, still can avoid to the anti - inert gas of filling of top of the tower to the elimination is carry over vapour phase MTBE out of because of the emission noncondensable gas and is caused the loss.