[특허]Method of restoring catalytic activity to a spent hydrotreating catalyst, the resulting restored catalyst, and a method of hydroprocessing

Method of restoring catalytic activity to a spent hydrotreating catalyst, the resulting restored catalyst, and a method of hydroprocessing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-027/02 B01J-027/047 B01J-027/043 B01J-023/00 B01J-023/10 C10G-017/00 C10G-019/00 C10G-021/00 C10G-025/00 C10G-027/00 C10G-029/00 C10G-031/00
출원번호	US-0878825 (2010-09-09)
등록번호	US-8168557 (2012-05-01)
발명자 / 주소	Ginestra, Josiane Marie-Rose Seamans, James Dallas Lee, Kenneth Scott
출원인 / 주소	Shell Oil Company
대리인 / 주소	Stewart, Charles W.
인용정보	피인용 횟수 : 0 인용 특허 : 37

초록 ▼

A method of restoring catalytic activity to a spent hydroprocessing catalyst that has a first carbon concentration. The concentration of carbon on the spent hydroprocessing catalyst is reduced to provide a carbon-reduced catalyst having a second carbon concentration that is less than the first carbon concentration. The carbon-reduced catalyst is exposed to a solution, comprising a chelating agent and a solvent, for an aging time period sufficient to provide for a restored catalytic activity thereby resulting in an aged catalyst having incorporated therein the chelating agent and the solvent. The aged catalyst is exposed to conditions, including a drying temperature, so as to remove from the aged catalyst a portion of the solvent without removing a significant portion of the chelating agent from the aged catalyst thereby resulting in a dried aged catalyst. The dried aged catalyst is then sulfur treated to thereby provide a restored catalyst. The restored catalyst and those catalysts made by the treatment method can be used in a hydroprocessing process comprising contacting the restored catalyst with a hydrocarbon feedstock under hydroprocessing conditions.

대표청구항 ▼

1. A revitalized non-additive based hydroprocessing catalyst composition, comprising: a spent non-additive based hydroprocessing catalyst, wherein said spent non-additive based hydroprocessing catalyst is a non-additive based hydroprocessing catalyst having become spent due to its use and comprises a metal component on a support material, and having incorporated therein a solution; wherein said solution comprises a chelating agent capable of forming a complex with said metal component and a solvent; and wherein the resulting spent catalyst having incorporated therein said solution has been aged for an aging time period and then dried to remove a portion of said solvent contained therein without removing therefrom more than 50 weight percent of said chelating agent and thereafter followed by a sulfur treatment thereof to thereby provide said revitalized non-additive based hydroprocessing catalyst. 2. A revitalized non-additive based hydroprocessing catalyst composition as recited in claim 1, wherein said metal component is selected from Group VIB metal components and Group VIII metal components, wherein said Group VIB metal component contained in said non-additive based hydroprocessing catalyst is an amount in the range of from about 5 to about 25 weight percent elemental metal based on the total weight of said non-additive based hydroprocessing catalyst, and wherein said Group VIII metal component contained in said non-additive based hydroprocessing catalyst is an amount in the range of from about 0.1 to about 6 weight percent elemental metal based on the total weight of said non-additive based hydroprocessing catalyst, wherein said support material is a porous refractory oxide selected from the group consisting of silica, magnesia, silica-titania, zirconia, silica-zirconia, titania, titania-alumina, zirconia-alumina, silica-titania, alumina, silica-alumina, and alumino-silicate. 3. A revitalized non-additive based hydroprocessing catalyst composition as recited in claim 2, wherein said spent non-additive based hydroprocessing catalyst has undergone a carbon reduction step by heat treating said spent catalyst with an oxygen-containing gas under high temperature conditions to thereby burn carbon therefrom and to provide a carbon concentration thereon of less than 3 weight percent. 4. A revitalized non-additive based hydroprocessing catalyst composition as recited in claim 3, wherein said chelating agent is selected from the group consisting of aminocarboxylic acids, polyamines, aminoalcohols, oximes, and polyethyleneimines; wherein said solvent is selected from the group consisting of water and alcohols; and wherein the amount of said solution incorporated into said spent catalyst is in the range of from about 0.005 moles chelant to about 1 mole chelant per mole of active metal. 5. A revitalized non-additive based hydroprocessing catalyst composition as recited in claim 4, wherein said aging time period exceeds about 10 hours and is no more than 900 hours. 6. A revitalized non-additive based hydroprocessing catalyst composition as recited in claim 5, said sulfur treatment includes contacting the aged and dried spent catalyst with a sulfur compound or elemental sulfur at a temperature in the range of from 150° C. to 400° C. 7. A revitalized non-additive based hydroprocessing catalyst composition as recited in claim 6, wherein said carbon concentration thereon of less than 2 weight percent; wherein said chelating agent is selected from the group of aminocarboxylic acids consisting of EDTA, HEDTA, DTPA and NTA; wherein the amount of said solution incorporated into said spent catalyst is in the range of from about 0.01 moles chelant to about 0.5 mole chelant per mole of active metal; and wherein more than about 75 weight percent of said chelant of said solution incorporated into said spent non-additive based hydroprocessing catalyst remains after drying. 8. A hydrotreating process, comprising: contacting a hydrocarbon feedstock under hydrotreating conditions with any one of the revitalized non-additive based hydroprocessing catalyst compositions of claims 1 through 5 and 6 through 7.

이 특허에 인용된 특허 (37)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method of restoring catalytic activity to a spent hydrotreating catalyst, the resulting restored catalyst, and a method of hydroprocessing 원문보기

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연합인증

Method of restoring catalytic activity to a spent hydrotreating catalyst, the resulting restored catalyst, and a method of hydroprocessing 원문보기

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연구과제 타임라인

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