Desulfurization of Middle Distillate Sulfur Hydrocarbons: Gasoline, Transmix, and Diesel No. 2.
- No hydrogenation & no oxidation process requiring hazardous oxidation agents, e.g., peroxide
- No sodium hydroxide treatment
- No sulfones created; no difficult to process byproducts
- Low operating temperature <150 °C
- Low pressure <100 psi
- Stand-alone operation or a concentrator of sulfur distillates for more efficient HDS operation
- Extraction efficiency does not depend upon molecule size or structure of sulfur middle distillate (e.g., thiophene to larger than dibenzothiophenes)
- Production of Ultra Low Sulfur Diesel (ULSD)
The SpinTek DXs process removes all of the sulfur compounds in diesel nonselectively. In contrast to Oxidation, the adsorption requires no oxidation or chemical addition and any concentrated sulfur compounds can be sent, if necessary, to a hydrodesulurization(HDS) unit. Because the HDS process is more cost effective at higher sulfur concentrations, the SpinTek DXs process enables use of smaller HDS reactors for a given sulfur throughput, or alternatively, higher throughput capacity in an existing HDS unit (debottlenecking), and lower energy/operating costs and hydrogen usage.
Please contact SpinTek directly for more information on how the SpinTek DXs technology can be designed to meet any special requirements.
Diesel with 10 weight ppm of sulfur– product of SpinTek’s DXs technology on diesel with 4900 ppm and 2900 ppm of sulfur.