GB735390A - Reforming catalysts - Google Patents
Reforming catalystsInfo
- Publication number
- GB735390A GB735390A GB13554/53A GB1355453A GB735390A GB 735390 A GB735390 A GB 735390A GB 13554/53 A GB13554/53 A GB 13554/53A GB 1355453 A GB1355453 A GB 1355453A GB 735390 A GB735390 A GB 735390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alumina
- platinum
- catalysts
- catalyst
- per cent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/06—Catalytic reforming characterised by the catalyst used
- C10G35/085—Catalytic reforming characterised by the catalyst used containing platinum group metals or compounds thereof
- C10G35/09—Bimetallic catalysts in which at least one of the metals is a platinum group metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Abstract
A catalyst suitable for reforming hydrocarbons comprises alumina and a platinum metal, the alumina having been derived from a material in which alumina trihydrate predominates. In preparing the catalyst, an alumina hydrogel is precipitated by adding ammonium hydroxide to a solution of aluminium chloride, aluminium sulphate, or sodium aluminate, the gel is washed and is then converted to a form in which alumina trihydrate predominates, by ageing at a pH of 8-10 for several days, or by seeding with crystallites of gibbsite; the progress of the transition may be followed by X-ray diffraction analysis of a dried sample. The trihydrate, as gibbsite, bayerite, or an intermediate crystalline form, preferably constitutes about 65-90 per cent of the total alumina hydrate; from 5-35 per cent of alumina monohydrate may be present. The preferred platinum metals are platinum, palladium, rhodium and iridium; ruthenium and osmium are less suitable. An acidic promoter, e.g. a fluoride, chloride, sulphate, or phosphate, or silica, zirconia, boria, molybdena, or chromia may be added either before or after the incorporation of the platinum metal. An aqueous solution of chloroplatinic acid may be added to a slurry of the alumina hydrate, followed by aqueous hydrogen sulphide solution; alternatively a platinum sulphide solution may be used. The resulting slurry is dried rapidly at a pH of 6-9, formed into tablets or pills, with the addition of a die lubricant, and then calcined in an oxygen-containing gas at 750-1200 DEG F. Before use the catalyst is reduced by heating in a stream of hydrogen. Preferably the catalysts contain 0.1-1 per cent by weight of platinum metal and 0.2-1.5 per cent by weight of fluoride, added as ammonium fluoride or hydrogen fluoride. The catalysts prepared according to the invention have pores of a larger volume than catalysts prepared from alumina monohydrate, and have a longer life before regeneration is necessary. Tests are described for determining the crystal form of alumina hydrates by X-ray diffraction, and the surface area and pore volume distribution for various catalysts are given. Processes are described in which the catalysts are used in reforming naphthas and naphtha fractions for the production of high octane gasoline, benzene, toluene, and xylene. Reforming is carried out in the presence of hydrogen under the usual conditions, with the catalyst as a fixed bed or in the fluidized state.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1118058XA | 1952-05-15 | 1952-05-15 | |
US735390XA | 1952-05-15 | 1952-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB735390A true GB735390A (en) | 1955-08-17 |
Family
ID=26754590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13554/53A Expired GB735390A (en) | 1952-05-15 | 1953-05-14 | Reforming catalysts |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR1118058A (en) |
GB (1) | GB735390A (en) |
NL (1) | NL87006C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073137B (en) * | 1960-01-14 | Engelhard Industries, Inc Newark, N J (V St A) | Reforming catalyst | |
DE1220397B (en) * | 1962-06-26 | 1966-07-07 | British Petroleum Co | Process for the preparation of catalysts containing alumina and chlorine |
DE1238144B (en) * | 1960-01-08 | 1967-04-06 | British Petroleum Co | Process for the pretreatment of gasoline hydrocarbons for isomerization |
CN108341422A (en) * | 2018-05-16 | 2018-07-31 | 洛阳中超新材料股份有限公司 | Rodlike β-aluminium hydroxide and its preparation method and application |
-
0
- NL NL87006D patent/NL87006C/xx active
-
1953
- 1953-05-14 GB GB13554/53A patent/GB735390A/en not_active Expired
- 1953-05-15 FR FR1118058D patent/FR1118058A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073137B (en) * | 1960-01-14 | Engelhard Industries, Inc Newark, N J (V St A) | Reforming catalyst | |
DE1238144B (en) * | 1960-01-08 | 1967-04-06 | British Petroleum Co | Process for the pretreatment of gasoline hydrocarbons for isomerization |
DE1220397B (en) * | 1962-06-26 | 1966-07-07 | British Petroleum Co | Process for the preparation of catalysts containing alumina and chlorine |
CN108341422A (en) * | 2018-05-16 | 2018-07-31 | 洛阳中超新材料股份有限公司 | Rodlike β-aluminium hydroxide and its preparation method and application |
CN108341422B (en) * | 2018-05-16 | 2020-07-03 | 洛阳中超新材料股份有限公司 | Rod-shaped β -aluminum hydroxide and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
FR1118058A (en) | 1956-05-31 |
NL87006C (en) |
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