IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0117805
(2008-05-09)
|
등록번호 |
US-8088705
(2012-01-03)
|
우선권정보 |
FR-07 03360 (2007-05-10) |
발명자
/ 주소 |
- Dufresne, Pierre
- Labruyere, Franck
- Meens, Maxime
- Romano, Loredana
|
출원인 / 주소 |
|
대리인 / 주소 |
Millen, White, Zelano, Branigan, P.C.
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
15 |
초록
▼
The invention relates to a process for incorporating sulfur in the porosity of the solid particles of a catalyst for the conversion of hydrocarbons or an adsorbent. This process is carried out off-site in the presence of hydrogen sulfide that is pure or diluted in hydrogen or nitrogen, a process in
The invention relates to a process for incorporating sulfur in the porosity of the solid particles of a catalyst for the conversion of hydrocarbons or an adsorbent. This process is carried out off-site in the presence of hydrogen sulfide that is pure or diluted in hydrogen or nitrogen, a process in which said particles are made to rise or fall in a sulfur incorporation zone that comprises at least one vibratory helical coil that is essentially tubular in shape and that comprises at least two turns, whereby said particles are subjected to a temperature profile over the majority of their path in said coil and whereby said particles are brought into contact with at least one fluid on at least one portion of their path.
대표청구항
▼
1. An off-site sulfurization process comprising: incorporating sulfur in the porosity of solid particles of a catalyst or an adsorbent containing at least one of the metals cobalt, molybdenum, nickel, tungsten or copper, silver or gold,wherein said process is carried out in the presence of a reactio
1. An off-site sulfurization process comprising: incorporating sulfur in the porosity of solid particles of a catalyst or an adsorbent containing at least one of the metals cobalt, molybdenum, nickel, tungsten or copper, silver or gold,wherein said process is carried out in the presence of a reaction gas comprising a hydrogen sulfide gas diluted or not in hydrogen or nitrogen,wherein said solid particles are made to rise or fall in a sulfurization zone in a vertically disposed vibrating helical coil, said coil having a bottom end and a top end and a multiplicity of longitudinally spaced apart lateral orifices,said sulfurization being conducted solely by gas-solid contact comprising passing said solid particles of catalyst or adsorbent into the top or bottom end of the vibrating coil and passing said reaction gas into said multiplicity of spaced apart lateral orifices,wherein the temperature at the coil and flowrate of the reaction gas through said lateral orifices and said vertically disposed vibrating helical coil is continually monitored and the flowrate of said reaction gas and catalyst or absorbents is continually adjusted as needed to establish a temperature profile between 20° C. and 250° C. that is solely controlled by the exothermal heat generated from a reaction between said reaction gas and said catalyst or adsorbents, and wherein the temperature is lower than that required to provide stoichiometric sulfided particles and wherein no turns of the coil are heated by Joule effect. 2. A process according to claim 1, in which, at the end of the process, the solid particles are cooled by a coolant. 3. A process according to claim 1, in which the particles are subjected to an increasing or decreasing temperature profile in the directions of movement of the particles. 4. A process according to claim 1, conducted at a temperature between 20 and 225° C. 5. A process according to claim 1 wherein said catalyst or adsorbent contains at least copper, silver or gold. 6. A process according to claim 1, in which said sulfur incorporation zone comprises a down-coil unit comprising: a tube with at least one coil comprising at least two turns wound helically around a vertical axis and a central drum, said coil having a length less than 200 m and a helix height formed by said coil being generally less than 20 m, an angle of rise of the coil that measures the tilt of the coil relative to the horizontal being between 1 and 10°, the cross-section of the coil being essentially circular, the coil being essentially in the form of a tube having a diameter between 10 and 300 mm; said process comprisingintroducing said solid particles into the lower part of the coil for upward movement or on the upper part of the coil for downward movement, andwithdrawing resultant solid sulfurized particles of catalyst or adsorbent from the upper part of the coil in the case of an upward movement or on the lower part of the coil in the case of a downward movement,introducing said hydrogen sulfide gas and hydrogen into at least one turn of the coil, so as to circulate the gases co-currently or counter-currently to the direction of circulation of the solid particles, andimparting vibrations to the drum-coil unit, so as to provide a ratio of the vertical component of the acceleration to the acceleration of the gravity, of between 1.2 and 3.5, such that the rate of advance of the particles is between 0.1 and 0.3 m/s, and advancing the mass at a flow rate of solid particles per hour of between 1 kg/h and 50 tons/h. 7. A process according to claim 6, the drum-coil unit comprises a vibratory table actuated by two unbalanced motors. 8. A process according to claim 6, in which the coil is metal and essentially tubular in shape. 9. A process according to claim 6, in which the coil is metal and flattened in shape. 10. A process according to claim 6, wherein said angle of the rise of the coil is between 1° and 15°. 11. A process according to claim 1, comprising incorporating sulfur in cobalt, molybdenum, nickel or tungsten. 12. A process according to claim 1, comprising passing a mixture of said solid particles and said gas phase into a plurality of zones distributed along the coil. 13. A process according to claim 11, comprising passing a mixture of said solid particles and said gas phase into a plurality of zones distributed along the coil. 14. A process according to claim 11, wherein the hydrogen sulfide is diluted with hydrogen. 15. A process according to claim 13, wherein the hydrogen sulfide is diluted with hydrogen. 16. A process according to claim 1, wherein the solid particles comprise copper. 17. A process according to claim 1, wherein the number of orifices is 2 to 10. 18. A process according to claim 1, wherein the number of orifices is 3 to 5.
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