GB792255A - Pyrolytic cracking of heavy oils - Google Patents
Pyrolytic cracking of heavy oilsInfo
- Publication number
- GB792255A GB792255A GB2770/56A GB277056A GB792255A GB 792255 A GB792255 A GB 792255A GB 2770/56 A GB2770/56 A GB 2770/56A GB 277056 A GB277056 A GB 277056A GB 792255 A GB792255 A GB 792255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pebbles
- zone
- reaction zone
- heavy oils
- heating
- 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
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
- C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
<PICT:0792255/III/1> In a process for converting heavy oils into a fuel gas, light petroleum products and some heavier products such as gasoline the heavy oils are contacted with a stream of heated inert refractory pebbles which move successively downwards through a heating zone 8 wherein the pebbles are reheated by burning off coke deposited on the pebbles, a pebble distributing zone 24 from which a small portion of the pebbles is fed to the reaction zone 28 through a ring of tubes 36 while the major portion of the pebbles descends by a central conduit 37 and on to which the heavy oils are sprayed by a pipe 41 passing through the duct 37, reaction products are withdrawn from the zone 28 through off-take 45 while the pebbles are removed as two annular streams through conduits 46 extending through a mass 47 of refractory material, e.g. sand, and a transverse support member 48 and pass through a valve 52 and conduit 59 to the chamber 67 of a pneumatic lift having two or more lift pipes 68 to be returned to the heating zone 8 via a disengaging vessel 71. Burners 72 may be supplied with oil or gas through lines 74 and air through lines 73 to supplement the heating by combustion of deposited coke in the heating zone 8. Lines 73 may also supply air for the combustion of deposited coke if air is not supplied as the lift gas in the pneumatic lift. Flue gases leave the zone 8 through a boiler section 20 and a stack 21. Steam is supplied to the reaction zone through line 42 and the temperature in the reaction zone may be between 1100-1500 DEG F. In an example, pebbles enter the heating zone 8 at between 1000-1200 DEG F. and are heated therein to between 1480-1580 DEG F., the temperature in the upper part of the reaction zone being 1180-1300 DEG F. while in the lower part of the reaction zone the temperature level is between 1080-1200 DEG F.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US792255XA | 1955-01-27 | 1955-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB792255A true GB792255A (en) | 1958-03-26 |
Family
ID=22149201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2770/56A Expired GB792255A (en) | 1955-01-27 | 1956-01-27 | Pyrolytic cracking of heavy oils |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB792255A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3228872A (en) * | 1962-01-02 | 1966-01-11 | Exxon Research Engineering Co | Controlling particle size in fluid coking |
-
1956
- 1956-01-27 GB GB2770/56A patent/GB792255A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3228872A (en) * | 1962-01-02 | 1966-01-11 | Exxon Research Engineering Co | Controlling particle size in fluid coking |
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