Presentation

1,901 views
1,747 views

Published on

hydrotreater catalyst

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,901
On SlideShare
0
From Embeds
0
Number of Embeds
23
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Presentation

  1. 1. <ul><li>Latest Axens catalysts- Their advantages  </li></ul><ul><li>  Advances in Hydro treating technology. </li></ul>
  2. 2. <ul><li>Properties of Catalyst- </li></ul><ul><li>Selectivity </li></ul><ul><li>Stability </li></ul><ul><li>Specific Surface area </li></ul><ul><li>Activity </li></ul><ul><li>Components of Catalyst- </li></ul><ul><li>Active sites </li></ul><ul><li>Support/Carrier </li></ul><ul><li>Promoter </li></ul>
  3. 3. Name Application Type Key Features HR 526 Very High Activity HDS for ULSD and VGO Co, Mo, Al2O3 <ul><li>Longer cycle length life </li></ul><ul><li>Minimum hydrogen requirement </li></ul><ul><li>Specially suited for replacement catalyst for SRGO Hydrotreating units </li></ul>HR 538 Ultra Deep HDS & HDN from Naphtha to VGO Ni, Mo, Al2O3 <ul><li>Very high Denitrification and Hydrogenation activity </li></ul><ul><li>Superior Desulfurization activity </li></ul><ul><li>Used for treating feedstock from Thermal and catalytic cracking </li></ul>
  4. 4. Name Application Type Key Features HR 548 Very High Activity for ultra deep HDS and HDN for Diesel and VGO Ni, Mo, Al2O3 <ul><li>exceptionally high desulfurization and excellent denitrogenation activities </li></ul><ul><li>designed to deal troublesome feedstock having </li></ul><ul><li>high end points </li></ul><ul><li>high levels of nitrogen </li></ul><ul><li>cracked materials </li></ul><ul><li>ideal for cetane and density improvement. </li></ul>HR 568 Ultra Deep HDS & HDN from Diesel to VGO Co, Mo Al2O3 with Ni as promoter <ul><li>High HDS and superior HDN activity </li></ul><ul><li>provides operational feedstock flexibility </li></ul><ul><li>wide range of operating pressures </li></ul><ul><li>Limited impact on hydrogen consumption </li></ul>
  5. 5. Name Application Type Key Features HR 626 Ultra Deep hydrodesulfurization of distillates Co,Mo oxides on very high purity alumina <ul><li>higher HDN and HDS activity with unique stability </li></ul><ul><li>Higher HDS activity for ULSD demand </li></ul><ul><li>SOR conditions better than HR series with superior stability </li></ul><ul><li>High stability and cost effective life cycle </li></ul><ul><li>Regeneration by classic ex-situ technique </li></ul>HR 945 Hydrogenation of Olefins and Diolefins Ni, Mo, Special Al2O3 <ul><li>limits the polymerization of olefins and diolefins </li></ul><ul><li>Longer cycle operation </li></ul>
  6. 8. <ul><li>Purpose of Hydrotreatment Process- </li></ul><ul><li>Diminish air pollution emission </li></ul><ul><li>Removal of S and N compounds </li></ul><ul><li>Avoid poisoning of Nobel metal </li></ul><ul><li>Improve Fuel Quality </li></ul><ul><li>Various Hydrotreatment processes- </li></ul><ul><li>Hydrodesulfurization(HDS) </li></ul><ul><li>Hydrodenitrification(HDN) </li></ul><ul><li>Hydrodeoxygenation(HDO) </li></ul>
  7. 9.   HYDROGEN PARTIAL PRESSURE TEMPERATURE LHSV HYDRODESULFURI-ZATION DENITROGENATION DEOXYGENATION HYDROGENATION OF AROMATICS HYDROCRACKING COKING
  8. 10. <ul><li>Deep HDS- </li></ul><ul><li>Primary goal is to reduce ‘S’ content in finished product </li></ul><ul><li>Pollution problem. </li></ul><ul><li>Advances in HDS </li></ul><ul><li>Catalyst support/carrier </li></ul><ul><li>carbon, silica-alumina, titania, zirconia,ASA </li></ul><ul><li>Catalyst active species </li></ul><ul><li>C0-Mo,Ni-Mo.Pt and Pt-Pd are very active in Deep HDS(sulfur upto 6 ppm) . </li></ul><ul><li>Mo sulfide has a much higher activity than Co or Ni sulfide. Sulfided CoMo/Al2O3 and NiMo/Al2O3 catalysts have higher catalytic activities than Mo/Al2O3. Co,Ni are referred as promoters. </li></ul>
  9. 11. <ul><li>New Reactor system </li></ul><ul><li>Conventional fixed bed </li></ul><ul><li>Gas oil and H2 are co currently added.H2S concentration profile </li></ul><ul><li>is not uniform. </li></ul><ul><li>Counter current operation </li></ul><ul><li>Gasoil from top,H2 from bottom.H2S removed from top </li></ul><ul><li>Commercial is SynSat Technology (Scheme 1.2) </li></ul>

×