TW343995B - Steam cracking process and facility comprising injection, recovery and recycling of erosive particles - Google Patents
Steam cracking process and facility comprising injection, recovery and recycling of erosive particlesInfo
- Publication number
- TW343995B TW343995B TW084113869A TW84113869A TW343995B TW 343995 B TW343995 B TW 343995B TW 084113869 A TW084113869 A TW 084113869A TW 84113869 A TW84113869 A TW 84113869A TW 343995 B TW343995 B TW 343995B
- Authority
- TW
- Taiwan
- Prior art keywords
- powder
- facility
- exchanger
- transfer line
- gas
- Prior art date
Links
- 239000002245 particle Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 4
- 238000004064 recycling Methods 0.000 title abstract 3
- 238000004230 steam cracking Methods 0.000 title abstract 3
- 230000003628 erosive effect Effects 0.000 title abstract 2
- 238000002347 injection Methods 0.000 title abstract 2
- 239000007924 injection Substances 0.000 title abstract 2
- 238000011084 recovery Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 abstract 6
- 239000007789 gas Substances 0.000 abstract 5
- 238000000926 separation method Methods 0.000 abstract 4
- 239000007787 solid Substances 0.000 abstract 4
- 238000005336 cracking Methods 0.000 abstract 2
- 238000010926 purge Methods 0.000 abstract 2
- 239000000571 coke Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000012299 nitrogen atmosphere Substances 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
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
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/16—Preventing or removing incrustation
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
A process for the steam cracking of hydrocarbons in a facility comprising at least one steam cracking furnace (1), the facility comprising at least one cracking zone (2) having cracking pipes down stream of which being linked to a transfer line exchanger (TLE) (4) for quick cooling of the effluents from the zone, the process comprising injection, upstream of the transfer line exchanger, of solid erosive particles in the transfer line exchanger for removing at least a portion of coke deposited in the exchanger in the pipeline, and also comprising separation of at least a portion of the solid particles from the transfer line exchanger effluents in a primary gas/solid separation mechanism (5), and recovery and recycling of at least a portion of these solid particles, the process being characterized in : - carrying out a substantially atmospheric step D of intermittently purging the recovered power; - prior to or concurrent to the step D, carrying out a pneumatic transport step T on the powder in a transfer channel (12) by conveying the powder with a noncoking inert transport gas having an atmospheric dew point less than 110℃, the temperature of the transport gas at the supply point being lower than the temperature of the effluents at the outlet of the exchanger (TLE); - after the pneumatic transport step T, carrying out a second separation step on the transport gas and the powder conveyed by the gas; - after the purge step D, the transport step T, and the second separation step, in a essentially nitrogen atmosphere at substantially atmospheric pressure, using at least one sieve (19) to carry out at least one powder sieving, in which the operation pressure does not exceed about 250℃, preferably 100℃, to recover the sieved out powder portion with finer particle sizes; and - pneumatically and under pressure, recycling at least a portion of the sieved out powder portion to the facility.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9415745A FR2728579A1 (en) | 1994-12-26 | 1994-12-26 | PROCESS AND PLANT FOR INJECTION, RECOVERY AND RECYCLING OF EROSIVE PARTICLES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW343995B true TW343995B (en) | 1998-11-01 |
Family
ID=9470312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW084113869A TW343995B (en) | 1994-12-26 | 1995-12-26 | Steam cracking process and facility comprising injection, recovery and recycling of erosive particles |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2728579A1 (en) |
| TW (1) | TW343995B (en) |
| WO (1) | WO1996020258A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562406A (en) * | 2014-10-14 | 2016-05-11 | 洛阳瑞昌石油化工设备有限公司 | Coke removing method for inner wall of metal cavity |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9006717A (en) * | 1989-04-14 | 1991-08-06 | Procedes Petroliers Petrochim | DECOQUEIFICATION PROCESS OF A HYDROCARBON STEAM CRACKING INSTALLATION AND ITS INSTALLATION |
| FR2706479B1 (en) * | 1993-06-09 | 1995-09-15 | Inst Francais Du Petrole | Cracking installation comprising common means and means specific to each solid particle separation and recycling reactor and its use. |
-
1994
- 1994-12-26 FR FR9415745A patent/FR2728579A1/en active Granted
-
1995
- 1995-12-22 WO PCT/FR1995/001720 patent/WO1996020258A1/en not_active Ceased
- 1995-12-26 TW TW084113869A patent/TW343995B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996020258A1 (en) | 1996-07-04 |
| FR2728579B1 (en) | 1997-02-07 |
| FR2728579A1 (en) | 1996-06-28 |
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