3000Watt Ultrasonic Assisted Oxidative Desulfurization Plant

3000Watt Ultrasonic Assisted Oxidative Desulfurization Plant

Specification:

Description: 

Oxidative desulfurization with hydrogen peroxide and subsequent solvent extraction is a two-stage deep desulfurization technology to reduce the amount of organosulfur compounds in fuel oils. Altrasonic ultrasonic reactors are used at both stages to improve phase-transfer reaction kinetics and dissolving rates in liquid-liquid phase systems.

At the first stage of ultrasonically assisted oxidative desulfurization, hydrogen peroxide is used as an oxidant to selectively oxidize the sulfur-containing molecules that are present in fuel oils to their corresponding sulfoxides or sulfones under mild conditions to increase their solubility in polar solvents with an increase in their polarity.

At this stage, the insolubility of the polar aqueous phase and the nonpolar organic phase is a significant problem in the process of oxidative desulfurization as both phases react with each other only at the interphase. Without ultrasonics, this results in a low reaction rate and a slow conversion of organosulfur in this two-phase system.

Advantage:

1. Ultrasonic decreases oxidation reaction time and increases sulfur conversion efficiency with very low residence times (<500 ms).

2. The oxidized sulfur compounds after treatment exhibit high solubility in water allowing for easy separation of the sulfur from the hydrocarbon stream.

3. Instead of complex post-processing separation, removal of the oxidized sulfur compounds can be achieved via a basic water wash.

4. Resulting treated hydrocarbon stream has a sulfur content of 10 ppm and potentially less

5. More cost effective than traditional hydrodesulphurization (“HDS”)