Supported chromium-molybdenum and tungsten sulfide catalysts
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-027/051
B01J-027/049
B01J-027/047
B01J-031/18
출원번호
US-0909188
(1986-09-19)
발명자
/ 주소
Chianelli Russell R. (Somerville NJ) Ho Teh C. (Bridgewater NJ) Jacobson Allan J. (Princeton NJ) Young Archie R. (Montclair NJ)
출원인 / 주소
Exxon Research and Engineering Company (Florham Park NJ 02)
인용정보
피인용 횟수 :
37인용 특허 :
0
초록▼
Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and molybdenum or tungsten which optionally may contain one or more promoter metals such as Co, Fe, Ni and mixture thereof. These catalysts are obtained by compositing a preselected quantity of support material with a pre
Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and molybdenum or tungsten which optionally may contain one or more promoter metals such as Co, Fe, Ni and mixture thereof. These catalysts are obtained by compositing a preselected quantity of support material with a precursor salt containing a tetrathiometallate anion of Mo or W and a cation comprising trivalent chromium and, optionally, one or more promoter metals wherein both said trivalent chromium and promoter metal are chelated by at least one neutral, nitrogen-containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen-free atmosphere. These catalysts have high selectivity for nitrogen removal. The chromium and promoter metal do not have to be in the same cation.
대표청구항▼
As a composition of matter, a supported hydroprocessing catalyst obtained by compositing a quantity of a particulate, porous catalyst support material comprising one or more refractory oxides with one or more catalyst precursor salts and heating said composite at an elevated temperature of at least
As a composition of matter, a supported hydroprocessing catalyst obtained by compositing a quantity of a particulate, porous catalyst support material comprising one or more refractory oxides with one or more catalyst precursor salts and heating said composite at an elevated temperature of at least about 200°C. up to about 600°C., in the presence of a sulfur-bearing compound in an amount such that, based on the sulfur in said sulfur-bearing compound, sulfur is present in excess of that contained in the catalyst precursor and under oxygen-free conditions for a time sufficient to form said catalyst, wherein said catalyst precursor salt contains a tetrathiometallate anion of Mo, W or mixture thereof and a cation comprising trivalent chromium or mixture of trivalent chromium with one or more divalent promoter metals selected from the group consisting of Fe, Ni, Co, Mn, Zn, Cu and mixture thereof wherein said trivalent chromium and divalent promoter metals are chelated by at least one neutral, nitrogen-containing polydentate ligand, L, and wherein said trivalent chromium and divalent promoter metal are in the same or different cations. A process for preparing a supported hydroprocessing catalyst, said process comprising compositing a quantity of a particulate, porous catalyst support material comprising one or more refractory oxides with one or more catalyst precursor salts and heating said composite at elevated temperature of at least about 200°C. up to about 600°, in the presence of a sulfur-bearing compound in an amount whereby sulfur in the form of said sulfur-bearing compound is present in excess of that contained in the catalyst precursor and under oxygen-free conditions for a time sufficient to form said catalyst, wherein said catalyst precursor salt contains a tetrathiometallate anion of Mo, W or mixture thereof and a cation comprising trivalent chromium or a mixture of trivalent chromium with one or more divalent promoter metals selected from the group consisting of Fe, Ni, Co, Mn, Zn, Cu and mixture thereof wherein said trivalent chromium and divalent promoter metals are chelated by at least one neutral, nitrogen-containing polydentate ligand, L. As a composition of matter, a supported hydroprocessing catalyst obtained by compositing a quantity of inorganic refractory oxide support material with one or more catalyst precursor salts and heating said composite at an elevated temperature of at least about 200°C. up to about 600°C. in the presence of a sulfur-bearing compound in an amount such that the sulfur in the form of said sulfur-bearing compound is present in excess of that present in said precursor and under oxygen-free conditions for a time sufficient to form said catalyst, wherein said presursor salt is selected from the group consisting of (Cr1-zMzLXy) (MoS4)n, (Cr1-zMzLXy) (WS4)n and mixture thereof, wherein the chromium is in the trivalent state, wherein n=(3-z-y)/2, wherein M is one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof, wherein 1≥z≥0 and 1-z≥y≥0, wherein ligand L is one or more neutral, nitrogen-containing ligands, at least one of which is a chelating polydentate ligand, and wherein X is a single charged anionic ligand.
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