| 10737939 |
Process for producing hydrogen sulfide in a circulating catalytic bed reactor |
Pierre Dufresne, Pauline Galliou, Giuseppe Italiano, Ezio Antonino Viglianti |
2020-08-11 |
| 8088705 |
Process for sulfurization or presulfurization of solid particles of a catalyst or an adsorbent |
Pierre Dufresne, Maxime Meens, Loredana Romano |
2012-01-03 |
| 7713905 |
Off-site treatment for hydrogenation catalysts |
Pierre Dufresne, Francois Locatelli |
2010-05-11 |
| 7582587 |
Passivation of sulphur hydroconversion catalyst |
Pierre Dufresne |
2009-09-01 |
| 7501376 |
Oxidizing heat treatment passivation of sulphide hydrotreatment catalyst |
Pierre Dufresne |
2009-03-10 |
| 6753291 |
Process for sulfiding an additive-containing catalyst |
Sonja Eijsbouts, Frans Lodewijk Plantenga, Pierre Dufresne, Leendert Arie Gerritsen |
2004-06-22 |
| 6559092 |
Precarbonisation of a hydrotreatment catalyst |
Pierre Dufresne, Michel Lacroix, Christophe Geantet, Cecile Glasson |
2003-05-06 |
| 6417134 |
Ex-situ presulfuration in the presence of hydrocarbon molecule |
Pierre Dufresne |
2002-07-09 |
| 6294498 |
Protection of catalysts by deposition of a protective layer |
Joan Darcissac, Nilanjan Brahma, Pierre Dufrense |
2001-09-25 |
| 6100216 |
Process for incorporating sulfur into the pores of a hydrocarbon treatment catalyst |
Pierre Dufresne, Nilanjan Brahma, Jean Darcissac |
2000-08-08 |