Oil & Gas Refining
Ultra-Deep Desulfurization using Polishing Catalyst
Strict government regulations are being mandated at 15 ppm sulfur in the ultra-low sulfur diesel (ULSD) in the United States and at less than 10 ppm in the European Union. The current, traditional HDS catalysts are efficient in removing the sulfur levels down to about 50 ppm; however, they leave behind difficult-to-remove sulfur compounds.
AdESulfur
ADEM introduces its advanced catalytic adsorbent, AdESulfur™. The product's performance is highly active towards refractory sulfur compounds in accomplishing ultra-deep desulfurization to attain sulfur levels down to well below 5 ppm. AdESulfur™ comprises metal nanoparticles supported on a nanowire platform for achieving a high-performance, reactive adsorbent HDS process. Typically, this catalyst can be applied after the traditional HDS unit and is designed to be used as a polishing step for an increased long catalyst life. AdESulfur’s unique properties will help remove up to 30% unsaturated aromatics, further increasing the diesel fuel quality.
ADESulfur for Natural Gas Desulfurization
ADEM Technology’s team has aligned our commercial model to reach the goals of our customers, which include simplifying the H₂S removal process and optimizing real-world performance with minimal adsorbent (chemical/scavenger) volumes consumed. Our solution is not just H₂S removal product, but rather a turnkey, customized approach to customer specific needs. By providing a partnership where the research, planning, management and optimization of our customer’s project is maximized, our full-process model switches the actual performance risk from the operator, to us as a process provider. ADEM Technology Inc., is successful because our adsorbent, equipment, processes and people perform as intended and get the desired results. Partner with our experienced team and see the difference:
· Regulatory compliant H₂S removal equipment
· Environmentally friendly with no hazardous waste
· Trained, certified and experienced site teams for operational efficiency
· Proven ability to meet desulfurization goals
· Exact treating method or combination of methods will be determined based on application.
Diesel Desulfurization with Lead-Lag System
Sulfur Removal from Diesel: ADEM’s Technology provides solutions for the strong sulfur species present in diesel through its AdESulfur™ adsorbent. By incorporating a lead-lag system, it enables the production of low sulfur diesel via adsorptive hydrodesulfurization.
ADEM’s technology offers the following applications:
· H₂S-free desulfurization of diesel
· Removal of highly stable sulfur species from diesel
· Production of ULSD (<10 ppm) through low-temperature hydrodesulfurization
· Hydrogen recycling
· Regeneration and reuse of the sulfur adsorbent multiple times
Gasoline Desulfurization, No Octane Loss
Sulfur Removal from gasoline/kerosene:
ADEM’s Technology provides solutions for the removal of sulfur species from Gasoline/Kerosene through its AdESulfur™ adsorbent. ADEM’s technology offers the following applications:
1. H₂S-free desulfurization of gasoline.
2. No hydrogenation of olefins, ensuring the octane number remains the same as in the feed.
3. Production of <10 ppm gasoline through low-temperature hydrodesulfurization.
4. Regeneration and reuse of the AdESulfur™ adsorbent multiple times.
5. Hydrogen recycling.
Hydrodesulfurization Catalyst
Hydrodesulfurization is an important operation in the oil refining industry that removes sulfur from several thousands of ppm to 15 ppm or lower. The crude oil first undergoes an atmospheric and vacuum distillation to different hydrocarbon fractions such as gasoline, kerosene, jet fuel, and diesel. Then the resulting fuel undergoes a hydrodesulfurization process where the fuel is reacted with hydrogen over a catalyst to remove sulfur in the form of hydrogen sulfide. The level of sulfur present in ultra-low-sulfur diesel (ULSD) must be lower than 15 or 10 ppm, depending upon the local regulatory standards.
AdE-Scat
AdE-Scat™ is our HDS catalyst product series. AdE-Scat™ represents a series of titanium dioxide (TiO2) nanowire-based catalyst products for high-performance hydrodesulfurization applications. Our catalysts have been tested to operate at milder operating conditions (low pressure and temperature), making them highly suitable for small to medium scale refineries. Most importantly, the low-temperature operation allows longer lifetime for catalysts. AdE-Scat™ catalysts contain single-crystal surfaces and uniform metal-oxide active sites that are porous and non-sinterable. These properties ensure the durability of these catalysts by increasing their lifetime and lowering the operational costs for a refinery.
