CN102071062A - Method for Texaco gasification process oven - Google Patents
Method for Texaco gasification process oven Download PDFInfo
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- CN102071062A CN102071062A CN2010102185983A CN201010218598A CN102071062A CN 102071062 A CN102071062 A CN 102071062A CN 2010102185983 A CN2010102185983 A CN 2010102185983A CN 201010218598 A CN201010218598 A CN 201010218598A CN 102071062 A CN102071062 A CN 102071062A
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- valve
- speeding
- venting
- interlocking
- baker
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to the chemical industry field of methanol preparation from coal, more particularly to a method for a Texaco gasification process oven. The oven adopts relief gas as fuel gas and is provided with a pressure main pipe and an interlocking fast-closing cutoff valve to guarantee the procedure safety of the oven, and a flame monitor is installed on a preheating nozzle and is controlled by the interlocking fast-closing cutoff valve. The method disclosed in the invention solves the safety problem of relief gas oven, and achieves the purposes of saving energy, reducing consumption and protecting environment.
Description
Technical field
The coal system of the present invention relates to methanol chemistry field, particularly a kind of Inferior of Texaco Gasification Technology furnace drying method.
Background technology
Inferior of Texaco Gasification Technology is to use the former coal generating gas technology of a comparatively sophisticated cover at present, and its characteristics are raw coal is worn into slurry, with pure oxygen the incomplete oxidation reaction takes place under High Temperature High Pressure by a certain percentage in vapourizing furnace, makes mainly with CO, H
2For the raw gas of effective gas, as the unstripped gas of follow-up workshop section.Because of reaction needed is at high temperature carried out, so the baker of Texaco gasifier and heat then seem particularly important fully.Texaco's technology adopts diesel oil or liquefied gas as main baker fuel when stopping using vapourizing furnace at present, and its fuel consumption is bigger, baker cost height.With the 2800mm stove is example, and the vapourizing furnace temperature rise rate is 28 ℃/h, and a vapourizing furnace rises to 1200 ℃ from normal temperature, since 500 ℃ of oil nozzle oeprations at full load, finishes by 48 hours, and its consumption diesel oil amount is: 0.1 * 6+0.3 * 42=13.2 (ton).Diesel oil per ton is by 8000 yuan, and drying by the fire one stove oil amount value is 10.56 ten thousand yuan.By 10 furnace gauges of annual baking, annual baker expense is ten thousand yuan of 10.56 * 10=105.6.And diesel oil baker adjusting function is poor, and the cold zone temperature rise rate is difficult to control in the early stage, has problems such as interior temperature rise of short period of time is too fast, fire extinguishing, can not satisfy vapourizing furnace brick intensification requirement.Because of the liquefied gas calorific value is low than diesel oil, if then expense is higher with the liquefied gas baker.
The synthetic film recycle section of coal system methanol technics produces the venting of speeding, and it consists of (V%):
H
2：50 CO：23 CH
4：4 CO
2：3 N
2：14 Ar：5
With 200,000 tons of/year methyl alcohol projects is example, and discharge quantity reaches 1500Nm3/h but the maximum non-infiltration of by-product is speeded, and this is flammable, and the venting of speeding is generally delivered to torch burning emptying as waste gas, causes great waste.
As the employing direct baker of speeding to exit, there is the potential safety hazard of blast again.If synthetic and film recovery system operating mode has change in the baker process, the blow off pressure fluctuation of speeding might cause the venting of speeding to interrupt in short-term, will producer implode accident.
Summary of the invention
Deficiency at prior art exists the object of the present invention is to provide a kind of Inferior of Texaco Gasification Technology furnace drying method, and it is fuel gas that this invention is exitted to speed, not only energy-conservation but also safety.
Technical scheme of the present invention comprises the steps:
(1), the venting of speeding that come by synthetic film recycle section exits through speeding and delivers to gasification workshop section behind the voltage stabilizing of surge tank buffering, the current stabilization, the venting of speeding more than needed drains into torch by pressure regulator valve;
(2), the air inlet battery limit (BL) speed the venting behind flow measurement, load cell and quick closing valve trip valve, enter spark arrester, behind pressure regulator valve and manual valve, enter respectively again the preheating burner the center and outside annular space, enter vapourizing furnace as baker fuel gas;
(3), between spark arrester and pressure regulator valve, be furnished with a pilot burner pipeline, and a manual variable valve is housed;
(4), in the baker process, set and to speed to exit the baker interlocking.
The described baker interlocking of speeding to exit comprises the steps:
A, pressure regulator valve are selected the fail close pattern for use, in case instrument air is disconnected, valve is in closing condition immediately, guarantee the safe operation of system;
Be provided with the pressure interlocking between b, load cell and quick closing valve trip valve, when total pipe pressure is low, cut off the external venting of speeding immediately;
C, on the preheating burner flame monitor has been installed, the flame monitoring signal is in case disappear, then quick closing valve trip valve interlocking close.
Beneficial effect of the present invention is:
1, waste gas utilizes again, has reduced production cost;
A 2800mm vapourizing furnace rises to 1200 ℃ from normal temperature, since 500 ℃ of oil nozzle oeprations at full load, finishes by 48 hours, and its consumption diesel oil amount is:
0.1 * 6+0.3 * 42=13.2 (ton).
Diesel oil per ton is by 8000 yuan, and drying by the fire one stove oil amount value is 10.56 ten thousand yuan.
By 10 furnace gauges of annual baking, annual ten thousand yuan of the baker expense 10.56 * 10=105.6 that save
2, reduce discharging the carbonic acid gas of nearly 150 tons of diesel oil discharging, also reduced the discharging of speeding to exit simultaneously, obtained very big environmental benefit.
3, Zhuan She flame detector has prevented that effectively flame from extinguishing suddenly, speeds to exit and closes untimely and explosion hazard generation that cause.
4, be convenient to the to stop using long term thermal of stove is equipped with, and it is about more than 48 hours to shorten the driving time.
Description of drawings
Figure is a process flow sheet of the present invention.
Marginal data:
17,18,19 is 8 word blind plates
2, the 7,8,11,12,13,14,15, the 16th, manual valve
20, the 21,22,23,24, the 25th, the gas relief line of speeding
4, the 6th, pressure regulator valve
26, the 27, the 28th, chain signal
The 3rd, the quick closing valve trip valve
The 5th, spark arrester
The 32nd, safety valve
29, the 30th, load cell
The 31st, the flow measurement element
The 9th, flame monitor
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in detail.
As shown in the figure, entered through 8 word blind plates and manual valve by the synthetic venting of speeding that comes and to speed to exit surge tank 1, deliver to gasification workshop section behind pressure regulator valve 4 voltage stabilizings, current stabilization, the venting of speeding more than needed drains into torch by pressure regulator valve 4; Speed the venting enter the gasification battery limit (BL) by hand off valve 2, behind flow measurement, load cell and quick closing valve trip valve 3, enter spark arrester 5, behind pressure regulator valve 6 and manual valve, enter respectively again the preheating burner the center and outside annular space, enter vapourizing furnace as baker fuel gas; Be furnished with a pilot burner pipeline at spark arrester 5 and 6 of pressure regulator valves in addition, and a manual variable valve is housed, play combustion-supporting effect at baker initial stage pilot burner.
Embodiment 1
At first confirm to speed blow off pressure and composition is qualified and deliver to the gasification battery limit (BL), it is qualified that the normal and burner hearth of interlocking debugging is taken out negative displacement, on-the-spot confirm to speed gas-discharge hand main valve 2, quick-closing valve 3, variable valve 6, speed to exit to preheating burner center hand valve 7, speed to exit to the preheating burner annular space hand valve 8 and pilot burner hand valve 10 and close, the gas-discharge hand main valve 2 of speeding is slowly opened at the scene, middle console keyboard is driven quick-closing valve 3, on-the-spot confirm that burner hearth is crack pilot burner hand valve 10 after little negative pressure, confirm to speed venting by behind the pilot burner, light pilot burner, pilot burner is inserted the preheating burner; Confirm that flame detector 9 signals are normal, other parameter adjustments are normal, interlocking comes into operation; By regulating pilot burner hand valve 10 control temperature rise rates.
Embodiment 2
At first confirm to speed blow off pressure and composition is qualified and deliver to the gasification battery limit (BL), it is qualified that the normal and burner hearth of interlocking debugging is taken out negative displacement, gas-discharge hand main valve 2 is confirmed to speed in the scene, quick-closing valve 3, variable valve 6, speed to exit to preheating burner center hand valve 7, speed to exit to preheating burner annular space hand valve 8 and pilot burner hand valve 10 cuts out, the gas-discharge hand main valve 2 of speeding is slowly opened at the scene, middle console keyboard is driven quick-closing valve 3, on-the-spot confirm that burner hearth is crack pilot burner hand valve 10 after little negative pressure, confirm to speed venting by behind the pilot burner, light pilot burner, pilot burner is inserted the preheating burner, by regulating pilot burner hand valve 10 control temperature rise rates.When burner hearth continues to be warming up to 150 ℃, middle control confirms that flame detector 9 signals are normal, the burning of on-the-spot affirmation pilot burner is normal, and pilot burner flame transferred to maximum, middle control suitably strengthens combustion chamber draft, and the scene is opened and speeded to exit to the preheating burner center hand valve 7 and the annular space hand valve 8 to the preheating burner of speeding to exit, and pressure regulator valve 6 is passed through in middle control, to speed to exit and send into burner hearth through the preheating burner, and then the control temperature rise rate.
Embodiment 3
At first confirm to speed blow off pressure and composition is qualified and deliver to the gasification battery limit (BL), it is qualified that the normal and burner hearth of interlocking debugging is taken out negative displacement, gas-discharge hand main valve 2 is confirmed to speed in the scene, quick-closing valve 3, variable valve 6, speed to exit to preheating burner center hand valve 7, speed to exit to preheating burner annular space hand valve 8 and pilot burner hand valve 10 cuts out, the gas-discharge hand main valve 2 of speeding is slowly opened at the scene, middle console keyboard is driven quick-closing valve 3, on-the-spot confirm that burner hearth is crack pilot burner hand valve 10 after little negative pressure, confirm to speed venting by behind the pilot burner, light pilot burner, pilot burner is inserted the preheating burner, confirm that the flame detector signal is normal, by regulating pilot burner hand valve 10 control temperature rise rates, monitor and adjust each operating parameters in normal range.When the blow off pressure PT02 that speeds is lower than 0.35Mpa, or flame detector 9 no signals, then safety interlocking triggers, and sends warning, and quick-closing valve cuts out rapidly and cuts off the venting of speeding, the venting of speeding more than needed through pressure regulator valve 4 emptying to torch.Meanwhile, middle control manual-lock pressure regulator valve 6, the scene is closed and is speeded to exit to the preheating burner center hand valve 7 and the annular space hand valve 8 to the preheating burner of speeding to exit, and the extraction pilot burner is placed on the outdoor ventilation place, middle control strengthens more than the combustion chamber draft 5min, guarantee burner hearth take out negative displacement qualified after, repeat embodiment two steps.
Claims (2)
1. an Inferior of Texaco Gasification Technology furnace drying method is characterized in that, comprises the steps:
(1), the venting of speeding that come by synthetic film recycle section exits through speeding and delivers to gasification workshop section behind the voltage stabilizing of surge tank buffering, the current stabilization, the venting of speeding more than needed drains into torch by pressure regulator valve;
(2), the air inlet battery limit (BL) speed the venting behind flow measurement, load cell and quick closing valve trip valve, enter spark arrester, behind pressure regulator valve and manual valve, enter respectively again the preheating burner the center and outside annular space, enter vapourizing furnace as baker fuel gas;
(3), between spark arrester and pressure regulator valve, be furnished with a pilot burner pipeline, and a manual variable valve is housed;
(4), in the baker process, set and to speed to exit the baker interlocking.
2. Inferior of Texaco Gasification Technology furnace drying method according to claim 1 is characterized in that, the described baker interlocking of speeding to exit comprises the steps:
A, pressure regulator valve are selected the fail close pattern for use, in case instrument air is disconnected, valve is in closing condition immediately, guarantee the safe operation of system;
Be provided with the pressure interlocking between b, load cell and quick closing valve trip valve, when total pipe pressure is low, cut off the external venting of speeding immediately;
C, on the preheating burner flame monitor has been installed, the flame monitoring signal is in case disappear, then quick closing valve trip valve interlocking close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102185983A CN102071062B (en) | 2010-07-02 | 2010-07-02 | Method for Texaco gasification process oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102185983A CN102071062B (en) | 2010-07-02 | 2010-07-02 | Method for Texaco gasification process oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102071062A true CN102071062A (en) | 2011-05-25 |
| CN102071062B CN102071062B (en) | 2013-04-24 |
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ID=44029820
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102185983A Expired - Fee Related CN102071062B (en) | 2010-07-02 | 2010-07-02 | Method for Texaco gasification process oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674709A (en) * | 2017-10-31 | 2018-02-09 | 天津渤化永利化工股份有限公司 | Broken coal gasification uses device and handling process of the partial CO 2 as gasifying agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923974A (en) * | 2005-09-01 | 2007-03-07 | 中国科学院工程热物理研究所 | Method of producing chemical product by double fuel reforming chemical system |
| CN101050388A (en) * | 2006-04-07 | 2007-10-10 | 山东华鲁恒升化工股份有限公司 | Air gas recovery system of gasometer stove, and new technique of using the system |
| CN101649225A (en) * | 2009-08-31 | 2010-02-17 | 水煤浆气化及煤化工国家工程研究中心 | Hot wall type gasifier baker control system |
-
2010
- 2010-07-02 CN CN2010102185983A patent/CN102071062B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923974A (en) * | 2005-09-01 | 2007-03-07 | 中国科学院工程热物理研究所 | Method of producing chemical product by double fuel reforming chemical system |
| CN101050388A (en) * | 2006-04-07 | 2007-10-10 | 山东华鲁恒升化工股份有限公司 | Air gas recovery system of gasometer stove, and new technique of using the system |
| CN101649225A (en) * | 2009-08-31 | 2010-02-17 | 水煤浆气化及煤化工国家工程研究中心 | Hot wall type gasifier baker control system |
Non-Patent Citations (1)
| Title |
|---|
| 吴同舫: "德士古气化炉原始烘炉影响因素浅析", 《化学工程师》, no. 5, 25 May 2010 (2010-05-25), pages 76 - 78 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674709A (en) * | 2017-10-31 | 2018-02-09 | 天津渤化永利化工股份有限公司 | Broken coal gasification uses device and handling process of the partial CO 2 as gasifying agent |
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| Publication number | Publication date |
|---|---|
| CN102071062B (en) | 2013-04-24 |
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Granted publication date: 20130424 Termination date: 20200702 |