CN105754636A - Reforming heating furnace with flue heat step compensation - Google Patents
Reforming heating furnace with flue heat step compensation Download PDFInfo
- Publication number
- CN105754636A CN105754636A CN201610275553.7A CN201610275553A CN105754636A CN 105754636 A CN105754636 A CN 105754636A CN 201610275553 A CN201610275553 A CN 201610275553A CN 105754636 A CN105754636 A CN 105754636A
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- China
- Prior art keywords
- flue
- radiation chamber
- heating
- compensating device
- combustion
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- 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
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4006—Temperature
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The invention relates to a reforming heating furnace with flue heat step compensation.The reforming heating furnace is mainly composed of a radiation chamber, a convection chamber, flues and afterburning devices.Smoke coming out of the radiation chamber enters the convection chamber and then is directly conveyed to units needing heating through the flues at the top of the convection chamber; furthermore, the convection chamber can be omitted, the flues are arranged at the top of the radiation chamber, and smoke comes out of the radiation chamber and then is directly conveyed to the heating units through the flues connected with the top of the radiation chamber; when the temperature of the smoke cannot meet heating or heat exchange demands, the smoke is heated through the afterburning devices arranged on the convection chamber or the flues to ensure that the temperature of the smoke meets the demand.According to the reforming heating furnace, a waste heat boiler commonly arranged at a convection section is omitted, waste heat of the smoke is fully used, and thus the reforming heating furnace has the advantages of being small in investment, simple in system, low in energy consumption and high in efficiency.
Description
Technical field
The invention belongs to petrochemical industry, be specifically related to a kind of reforming furnace being carried out heat step compensation by flue.
Background technology
Reformation is the technical process making hydrocarbon molecules be rearranged into recruit's structure in petroleum refining process, and namely under the effect of catalyst, cycloalkane becomes aromatic hydrocarbons or isoparaffin with alkane transformations, simultaneously by-product hydrogen partial.After raw material enters device, first have to be processed processing through pretreatment system, remove harmful magazins' layout and go out required acceptable material of reforming, subsequently into reforming reaction system.Because reforming reaction is the endothermic reaction, its required heat is provided by adding reforming furnace.
The modular design of reforming furnace is that four heating furnaces are merged into a large-scale gate-type heating furnace, and centre wall with flues is separated out four radiation chambers, to avoid temperature to interfere；The boiler tube of each radiation chamber is multi-channel parallel, the gateway of each arm with stove outside large set pipe be connected, the high-temperature flue gas of radiation chamber enters a public convection section；Convection section is provided with waste heat boiler, reclaims the heat from radiation chamber high-temperature flue gas out, produce middle pressure steam.Owing in device, steam consumption is less, a large amount of steam are outer defeated, namely use fuel gas producing steam, less economical；Meanwhile, reformer also needs to arrange special heating furnace and heats the raw materials technology needing heating in pre-hydrotreating reaction charging, other reboiling tower charging and other device, and heating furnace quantity is many, and construction investment is big.
At present, have other raw materials technology and a combustion air of flue gas and the auxiliary oven combined heat reformer utilizing reforming reaction charging heating furnace radiation chamber to discharge, but this technology to there is heating furnace quantity still more, construction investment is big, system complex, commercial Application difficulty is big.Further, since by the restriction of corrosion of sulfuric acid at dew point problem, exhaust gas temperature is higher, and thermal efficiency of heating furnace is low, and waste of fuel is serious.For this, develop a kind of high-efficiency novel reforming furnace system meeting reforming process requirement and there is important economic and social benefit.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of reforming furnace with flue heat step compensation, this reforming furnace has the advantages that investment is little, system is simple, energy consumption is low and efficiency is high.
A kind of technical scheme of the present invention is:
A kind of band flue heat step compensation reforming furnace, including radiation chamber, convection cell, combustion-compensating device and flue, is not provided with waste heat boiler, and described radiation chamber connects described convection cell, and convection cell connects described heating unit by described flue；Flue gas out enters convection cell afterwards from radiation chamber, is fed directly to heating unit again through flue；Described combustion-compensating device is arranged in convection cell and/or flue.Described heating unit is that this device needs the raw materials technology heat exchange unit of heating, combustion air heat exchange unit or fuel gas heat exchange unit etc..When can not meet heating or heat exchange demand when flue-gas temperature, by being arranged on the combustion-compensating device on convection cell or flue, flue gas is heated, it is ensured that flue-gas temperature meets requirement.
Preferably, described flue may be provided on the top of convection cell, side wall or headwall.
Preferably, described combustion-compensating device may be provided at the side wall in convection cell, headwall or tip position.
Another kind technical scheme of the present invention is:
A kind of reforming furnace with flue heat step compensation, including radiation chamber, combustion-compensating device and flue, is not provided with waste heat boiler, and described radiation chamber connects described heating unit by described flue；Flue gas is out fed directly to heating unit by flue afterwards from radiation chamber；Described combustion-compensating device is arranged in flue, can be arranged on the correct position of flue according to practical situation, has regulation and control flue-gas temperature function, makes flue-gas temperature meet requirement.
In aforementioned whole technical scheme, the operation principle of described combustion-compensating device is that flue gas is heated, its temperature is made to raise, meet corresponding heating or heat exchange demand, as preferably, its mode of heating can be burning fuel gas heating, electrical heating, heating plasma, coal-fired heating or fuel Heating etc., can select flexibly as required.
Preferred as aforementioned whole technical schemes, described reforming furnace arranges desulfurizer, the fuel gas passing into radiation chamber burner and described combustion-compensating device is first passed through described desulfurizer and carries out desulfurization process.
Compared with existing reforming furnace, technical solution of the present invention has the advantage that
1. eliminating the waste heat boiler of existing reforming furnace convection cell, the waste heat making full use of flue gas carrys out other raw materials technology and the combustion air of heated reformate device, improves the economy of fuel utilization；
2. reduce reformer heating furnace quantity, reduce construction investment, reduce the complexity of system；
3. pair fuel gas carries out fine de-sulfur process, it is possible to solve the dew point corrosion problem of degree of depth residual neat recovering system low-temperature zone heat transmission equipment.
Accompanying drawing explanation
Fig. 1 a is the structural representation of the embodiment of the present invention 1 reforming furnace；
Fig. 1 b is the system connection figure of embodiment 1 reforming furnace system；
Fig. 2 a is the structural representation of embodiment 2 reforming furnace；
Fig. 2 b is the system connection figure of embodiment 2 reforming furnace system.
Wherein:
1: radiation chamber；2: convection cell；3: combustion-compensating device；4: flue；5: heating unit；6: chimney.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described, in order to is more fully understood that the present invention.
Embodiment 1
As shown in Figure 1a, the reforming furnace of the present invention is mainly made up of radiation chamber 1, convection cell 2, combustion-compensating device 3 and flue 4；Convection cell 2 top arranges flue 4, and as other embodiment, flue 4 may also be arranged on side wall or the headwall of convection cell 2；Combustion-compensating device 3 is alternatively provided at the top of convection cell 2, side wall or headwall place.
According to Fig. 1 b, system connects, and first passes through convection cell 2 from radiation chamber 1 high-temperature flue gas out, is transported to heating unit 5 again through flue 4, discharges finally by chimney 6；When kiln gas temperature can not meet heating or during heat exchange demand, flue gas can being heated by being arranged on the combustion-compensating device 3 of convection cell 2, making flue-gas temperature raise, until meeting demand；Heating unit 5 is according to different job demand, it is possible to be need the raw materials technology heat exchange unit of heating, combustion air heat exchange unit or fuel gas heat exchange unit etc.；The multiple heaters such as the optional burning fuel gas heating of combustion-compensating device 3, electrical heating, heating plasma or coal and oil heating.
The common design of reforming furnace is to arrange waste heat boiler at convection section to reclaim the heat energy of the high-temperature flue gas from radiant section, produces middle pressure steam, but oil plant does not lack steam, and the steam that waste heat boiler produces is limited for refinery's meaning；And reforming furnace fuel is clean high heating value gas, produce steam with clean high heating value gas unreasonable, uneconomical, even identical to waste.The design of the present embodiment reforming furnace eliminates waste heat boiler, high-temperature flue gas is delivered directly to the equipment needing heating or heat exchange, by combustion-compensating device, flue gas is heated when flue-gas temperature deficiency so that it is meet demand.This design allows the heat energy of flue gas be fully utilized, and drastically increases the utilization ratio of fume afterheat, rationally more economically.
Embodiment 2
As shown in Figure 2 a and 2 b, the present embodiment reforming furnace, on the basis of embodiment 1, which further eliminates convection cell, and flue 4 is connected directly between radiation chamber 1 top, and the flue gas of radiation chamber 1 is transported to heating unit 5 either directly through the flue 4 on radiation chamber top；When some unit is higher to the temperature requirement of flue gas, can not meet from radiation chamber 1 flue-gas temperature out when requiring, this section of flue 4 arrange combustion-compensating device 3, flue gas is heated so that it is the demand to flue-gas temperature of subsequent heat unit 5 can be met；If less demanding to flue-gas temperature of heating unit 5, be fully able to from radiation chamber 1 flue-gas temperature out and meet demand, then corresponding flue 4 also can be not provided with combustion-compensating device 3.
Should be understood that above-described embodiment is only for illustrating technology design and the feature of the present invention, its object is to for skilled in the art realises that present disclosure and implementing according to this, not detailed description of the invention is exhaustive, it is impossible to limit the scope of the invention with this.All modifying according to technical scheme or equivalent replace, without deviating from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (6)
1. the reforming furnace with flue heat step compensation, including radiation chamber (1), convection cell (2), combustion-compensating device (3) and flue (4), it is characterised in that:
Being not provided with waste heat boiler, described radiation chamber (1) connects described convection cell (2), and convection cell (2) connects described heating unit (5) by described flue (4)；Flue gas out enters convection cell (2) afterwards from radiation chamber (1), is fed directly to heating unit (5) again through flue (4)；Described combustion-compensating device (3) is arranged in convection cell (2) and/or flue (4).
2. the reforming furnace with flue heat step compensation according to claim 1, it is characterised in that: described flue (4) is arranged on the top of convection cell (2), side wall or headwall.
3. the reforming furnace with flue heat step compensation according to claim 1, it is characterised in that: described combustion-compensating device (3) is arranged on the side wall in convection cell (2), headwall or tip position.
4. the reforming furnace with flue heat step compensation, including radiation chamber (1), combustion-compensating device (3) and flue (4), it is characterised in that:
Being not provided with waste heat boiler, described radiation chamber (1) connects described heating unit (5) by described flue (4)；Flue gas is out fed directly to heating unit (5) by flue (4) afterwards from radiation chamber (1)；Described combustion-compensating device (3) is arranged in flue (4).
5. the reforming furnace with flue heat step compensation according to any one of Claims 1-4, it is characterised in that: described combustion-compensating device (3) is electrical heating, heating plasma, burning fuel gas heat, coal-fired or fuel Heating.
6. the reforming furnace with flue heat step compensation according to any one of Claims 1-4, it is characterized in that: described reforming furnace also sets up desulfurizer, pass into the fuel gas of radiation chamber (1) burner and described combustion-compensating device (3) and first pass through described desulfurizer and carry out desulfurization process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610275553.7A CN105754636A (en) | 2016-04-29 | 2016-04-29 | Reforming heating furnace with flue heat step compensation |
| CN201710242461.3A CN107033950A (en) | 2016-04-29 | 2017-04-14 | Reforming furnace with flue heat step compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610275553.7A CN105754636A (en) | 2016-04-29 | 2016-04-29 | Reforming heating furnace with flue heat step compensation |
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| Publication Number | Publication Date |
|---|---|
| CN105754636A true CN105754636A (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610275553.7A Pending CN105754636A (en) | 2016-04-29 | 2016-04-29 | Reforming heating furnace with flue heat step compensation |
| CN201710242461.3A Pending CN107033950A (en) | 2016-04-29 | 2017-04-14 | Reforming furnace with flue heat step compensation |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710242461.3A Pending CN107033950A (en) | 2016-04-29 | 2017-04-14 | Reforming furnace with flue heat step compensation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940461A (en) * | 2017-10-23 | 2018-04-20 | 上海浩用节能工程有限公司 | Reforming furnace fuel gas pre-heating mean and reformer |
| CN112265962A (en) * | 2020-10-30 | 2021-01-26 | 庄焱法 | Electric cooperative heat supply reforming reaction system |
| US11958047B2 (en) | 2018-06-29 | 2024-04-16 | Shell Usa, Inc. | Electrically heated reactor and a process for gas conversions using said reactor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534265A (en) * | 2003-03-31 | 2004-10-06 | 王卫民 | Exhaust gas circulating utilization heating device and application |
| CN101307911A (en) * | 2007-05-18 | 2008-11-19 | 贵州世纪天元矿业有限公司 | Flue gas tandem heating method and heating system |
| GB2473030A (en) * | 2009-08-28 | 2011-03-02 | David John Farrant | Fluid heating apparatus and method comprising a heat exchanger adjacent a flue |
| CN201852446U (en) * | 2010-10-27 | 2011-06-01 | 中国石油化工集团公司 | Flexibly adjusted energy-saving type four-in-one reformed heating furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893752A (en) * | 2015-05-22 | 2015-09-09 | 中国寰球工程公司 | Double-inclined-trapezoidal horizontal tube double-sided radiant vacuum furnace for deep vacuum distillation of heavy crude oil |
-
2016
- 2016-04-29 CN CN201610275553.7A patent/CN105754636A/en active Pending
-
2017
- 2017-04-14 CN CN201710242461.3A patent/CN107033950A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534265A (en) * | 2003-03-31 | 2004-10-06 | 王卫民 | Exhaust gas circulating utilization heating device and application |
| CN101307911A (en) * | 2007-05-18 | 2008-11-19 | 贵州世纪天元矿业有限公司 | Flue gas tandem heating method and heating system |
| GB2473030A (en) * | 2009-08-28 | 2011-03-02 | David John Farrant | Fluid heating apparatus and method comprising a heat exchanger adjacent a flue |
| CN201852446U (en) * | 2010-10-27 | 2011-06-01 | 中国石油化工集团公司 | Flexibly adjusted energy-saving type four-in-one reformed heating furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940461A (en) * | 2017-10-23 | 2018-04-20 | 上海浩用节能工程有限公司 | Reforming furnace fuel gas pre-heating mean and reformer |
| CN107940461B (en) * | 2017-10-23 | 2024-08-13 | 上海浩用工业炉有限公司 | Fuel gas preheating method for reforming heating furnace and reforming device |
| US11958047B2 (en) | 2018-06-29 | 2024-04-16 | Shell Usa, Inc. | Electrically heated reactor and a process for gas conversions using said reactor |
| CN112265962A (en) * | 2020-10-30 | 2021-01-26 | 庄焱法 | Electric cooperative heat supply reforming reaction system |
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| Publication number | Publication date |
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| CN107033950A (en) | 2017-08-11 |
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Application publication date: 20160713 |