CN108975271A - A kind of hydrocarbon steam conversion device and conversion process preheating gaseous mixture with pre-inversion and using one section of gas of high temperature - Google Patents
A kind of hydrocarbon steam conversion device and conversion process preheating gaseous mixture with pre-inversion and using one section of gas of high temperature Download PDFInfo
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- CN108975271A CN108975271A CN201810820508.4A CN201810820508A CN108975271A CN 108975271 A CN108975271 A CN 108975271A CN 201810820508 A CN201810820508 A CN 201810820508A CN 108975271 A CN108975271 A CN 108975271A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/346—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using heat generated by superheated steam
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1235—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1235—Hydrocarbons
- C01B2203/1241—Natural gas or methane
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/10—Process efficiency
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Abstract
The invention discloses a kind of with pre-inversion and utilizes the hydrocarbon steam conversion device of one section of gas preheating gaseous mixture of high temperature, including pre reformer, square chest type primary reformer, cold mixture heater and heat recovery system, the square chest type primary reformer is made of radiant section and convection section, the mixed gas outlet of convection section is connected with the import of pre reformer, the outlet of the pre reformer is connect with cold mixture heater, the cold mixture heater is connected with the radiant section of square chest type primary reformer, one section of pyrolytic conversion gas outlet of radiant section is connect with cold mixture heater, one section of conversion gas outlet of the cold mixture heater is connected with heat recovery system.The present invention passes through the setting of pre reformer and cold mixture heater, the load of square chest type primary reformer radiant section can suitably be reduced, and the load of primary reformer convection section can be reduced, reduce the consumption of device HC fuel gas, to reduce the production cost of synthesis gas, the discharge amount of square chest type primary reformer flue gas is decreased simultaneously, there is certain environment-friendly advantage.
Description
Technical field
The invention belongs to chemical technology field, in particular to a kind of hydrocarbon that can be applied to the devices such as ethylene glycol, methanol, hydrogen manufacturing
Steam reformer and conversion process.
Background technique
Hydrogen manufacturing, the production devices such as ethylene glycol and methanol are widely used in using the synthesis gas that hydrocarbon steam conversion technique produces
In, such conversion process has the characteristics that process is short, with low investment, environmental-friendly, easy to operate, but upper with hydro carbons price
Rise, the production cost of synthesis gas is higher and higher, it has also become how an important factor for restricting plant economics reduces the life of synthesis gas
Producing cost becomes the research emphasis of hydrocarbon vapours producing synthesis gas conversion process.
Summary of the invention
It is an object of the invention to: in view of the above problems, provides a kind of band pre-inversion and utilize one section of high temperature
The hydrocarbon steam conversion device and conversion process of gas preheating gaseous mixture.
The technical scheme of the present invention is realized as follows: a kind of preheat gaseous mixture with pre-inversion and using one section of gas of high temperature
Hydrocarbon steam conversion device, it is characterised in that: returned including pre reformer, square chest type primary reformer, cold mixture heater and heat
Receipts system, the square chest type primary reformer are made of radiant section and convection section, and the convection section of the square chest type primary reformer is provided with mixed
It closes gas entrance and mixed gas outlet, the mixed gas outlet of the convection section is connected with the import of pre reformer, the pre reformer
Outlet connect with cold mixture heater, the cold mixture heater is connected with the radiant section of square chest type primary reformer, the radiation
One section of pyrolytic conversion gas outlet of section is connect with cold mixture heater, the outlet of one section of conversion gas and the heat of the cold mixture heater
Recovery system is measured to be connected.
The hydrocarbon steam conversion device of the present invention that gaseous mixture is preheated with pre-inversion and using one section of gas of high temperature, institute
It states and is provided with multiple groups coil pipe in the convection section of square chest type primary reformer, the preheating heat source of the multiple groups coil pipe is the height of radiant section discharge
Warm flue gas, the convection section are provided with low-temperature flue gas discharge outlet.
It is of the present invention to turn with pre-inversion and using the hydrocarbon steam conversion device of one section of gas preheating gaseous mixture of high temperature
Chemical industry skill, it is characterised in that: the gaseous mixture of hydro carbons gas and water vapour after desulfurization is first through convection section in square chest type primary reformer
The preheating of charge heating coil pipe, the gaseous mixture A after being preheated；
Gaseous mixture A enters pre reformer, and higher hydrocarbon being totally converted and part lighter hydrocarbons steam to lighter hydrocarbons occurs in pre reformer
Conversion reaction obtains pre-inversion gas B；
After pre-inversion gas B is incorporated process steam again, into cold mixture heater, using the High Temperature Gas of square chest type primary reformer out into one
After step overheat, pre-inversion gas C is obtained；
Pre-inversion gas C is directly entered each conversion tube of radiant section in square chest type primary reformer, and hydrocarbon steam conversion deep reaction occurs,
One section of pyrolytic conversion gas D is obtained, the operation temperature of square chest type primary reformer is 800~950 DEG C；
One section of pyrolytic conversion gas D is initially entered after cold mixture heater provides institute's calorific requirement for it, obtains one section of conversion gas E；
One section of conversion gas E enters heat recovery system, obtains conversion gas F, is finally sent to downstream unit.
It is of the present invention to turn with pre-inversion and using the hydrocarbon steam conversion device of one section of gas preheating gaseous mixture of high temperature
Chemical industry skill, preheating heat source of the high-temperature flue gas that the radiant section of square chest type primary reformer generates for each coil pipe in convection section, cooling
Convection section is discharged in low-temperature flue gas afterwards.
It is of the present invention to turn with pre-inversion and using the hydrocarbon steam conversion device of one section of gas preheating gaseous mixture of high temperature
Chemical industry skill, after pre-inversion gas B is incorporated process steam, further according to needing to be added part CO2, to adjust forming for conversion gas.
The present invention passes through the setting of pre reformer and cold mixture heater, can suitably reduce square chest type primary reformer radiant section
Load, and the load of primary reformer convection section can be reduced, the consumption of device HC fuel gas is reduced, to reduce the production of synthesis gas
Cost, while the discharge amount of square chest type primary reformer flue gas is decreased, there is certain environment-friendly advantage.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Marked in the figure: 1 is pre reformer, 2 be square chest type primary reformer, and 3 be cold mixture heater, and 4 be heat recovery system,
5 be radiant section, and 6 be convection section.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, it is a kind of with pre-inversion and using the hydrocarbon steam conversion device of one section of gas preheating gaseous mixture of high temperature, it wraps
Include pre reformer 1, square chest type primary reformer 2, cold mixture heater 3 and heat recovery system 4, the square chest type primary reformer 2 by
Radiant section 5 and convection section 6 form, and the convection section 6 of the square chest type primary reformer 2 is provided with gaseous mixture entrance and mixed gas outlet,
The mixed gas outlet of the convection section 6 is connected with the import of pre reformer 1, the outlet of the pre reformer 1 and charge heating
Device 3 connects, and the cold mixture heater 3 is connected with the radiant section 5 of square chest type primary reformer 2, and one section of high temperature of the radiant section 5 turns
Change gas outlet to connect with cold mixture heater 3, the outlet of one section of conversion gas and the heat recovery system 4 of the cold mixture heater 3
It is connected.
Wherein, multiple groups coil pipe, the preheating heat of the multiple groups coil pipe are provided in the convection section 6 of the square chest type primary reformer 2
Source is the high-temperature flue gas that radiant section 5 discharges, and the convection section 6 is provided with low-temperature flue gas discharge outlet.
Technique of the invention, specifically: hydro carbons gas (such as natural gas, associated gas, shale gas) and water vapour after desulfurization
Charge heating coil pipe of the gaseous mixture first through convection section in square chest type primary reformer preheat, gaseous mixture A after being preheated.
Gaseous mixture A enters pre reformer, and higher hydrocarbon being totally converted and part lighter hydrocarbons to lighter hydrocarbons occurs in pre reformer
Steam reforming reaction obtains pre-inversion gas B.
After pre-inversion gas B is incorporated process steam again, into cold mixture heater, the High Temperature Gas of square chest type primary reformer out is utilized
Further after overheat, pre-inversion gas C is obtained.
Pre-inversion gas C is directly entered each conversion tube of radiant section in square chest type primary reformer, and hydrocarbon steam conversion depth occurs
Reaction, obtains one section of pyrolytic conversion gas D, and the operation temperature of square chest type primary reformer is 800~950 DEG C.
One section of pyrolytic conversion gas D is initially entered after cold mixture heater provides institute's calorific requirement for it, obtains one section of conversion gas
E。
One section of conversion gas E enters heat recovery system, obtains conversion gas F, is finally sent to downstream unit.
Wherein, preheating heat source of the high-temperature flue gas G that the radiant section of square chest type primary reformer generates for each coil pipe in convection section,
High-temperature flue gas G in addition to the gaseous mixture of preheating pre reformer 1, can also Preheated steam, hydro carbons gas, combustion air etc., it is low after cooling
Convection section is discharged in warm flue gas H.
In the present invention, heat source needed for square chest type primary reformer is provided by burning hydrocarbon gas or device inner exhaust gas, and heat returns
Receipts system can make full use of the heat of conversion gas, can be used for each grade steam of by-product, preboiler water supply and desalted water etc., convection current
Each coil pipe quantity of section, purposes and heat recovery system can be according to device or even the heat utilization flexible settings of full factory.
In addition, CO can be also added in the present apparatus between pre reformer and cold mixture heater as needed2, i.e. pre-inversion gas
After B is incorporated process steam, further according to needing to be added part CO2, to adjust forming for conversion gas.
A kind of hydrocarbon steam conversion work preheating gaseous mixture with pre-inversion and using one section of gas of high temperature according to the present invention
Skill passes through the setting of pre reformer and cold mixture heater, can suitably reduce the load of square chest type primary reformer radiant section, and can
The load of primary reformer convection section is reduced, the consumption of device HC fuel gas is reduced, to reduce the production cost of synthesis gas, simultaneously
The discharge amount of square chest type primary reformer flue gas is decreased, there is certain environment-friendly advantage.Process flow of the invention is particularly suitable
In the hydrocarbon steam conversion technique of the devices such as ethylene glycol, methanol, hydrogen manufacturing, or surrounding cheap for electricity price has cheap steam source
Factory, technique of the invention will have more advantage in production run cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of hydrocarbon steam conversion device for preheating gaseous mixture with pre-inversion and using one section of gas of high temperature, it is characterised in that: packet
Include pre reformer (1), square chest type primary reformer (2), cold mixture heater (3) and heat recovery system (4), the square chest type one
Section furnace (2) is made of radiant section (5) and convection section (6), and the convection section (6) of the square chest type primary reformer (2) is provided with gaseous mixture
The mixed gas outlet of entrance and mixed gas outlet, the convection section (6) is connected with the import of pre reformer (1), the pre-inversion
The outlet of furnace (1) is connect with cold mixture heater (3), the radiant section of the cold mixture heater (3) and square chest type primary reformer (2)
(5) it is connected, one section of pyrolytic conversion gas outlet of the radiant section (5) is connect with cold mixture heater (3), the charge heating
One section of conversion gas outlet of device (3) is connected with heat recovery system (4).
2. according to claim 1 filled with pre-inversion and using the hydrocarbon steam conversion of one section of gas preheating gaseous mixture of high temperature
Set, it is characterised in that: be provided with multiple groups coil pipe in the convection section (6) of the square chest type primary reformer (2), the multiple groups coil pipe it is pre-
Heat source is the high-temperature flue gas of radiant section (5) discharge, and the convection section (6) is provided with low-temperature flue gas discharge outlet.
3. the hydrocarbon steam conversion according to claim 1 or 2 for preheating gaseous mixture with pre-inversion and using one section of gas of high temperature
The conversion process of device, it is characterised in that: the gaseous mixture of hydro carbons gas and water vapour after desulfurization is first through in square chest type primary reformer
The charge heating coil pipe of convection section preheats, the gaseous mixture A after being preheated；
Gaseous mixture A enters pre reformer, and higher hydrocarbon being totally converted and part lighter hydrocarbons steam to lighter hydrocarbons occurs in pre reformer
Conversion reaction obtains pre-inversion gas B；
After pre-inversion gas B is incorporated process steam again, into cold mixture heater, using the High Temperature Gas of square chest type primary reformer out into one
After step overheat, pre-inversion gas C is obtained；
Pre-inversion gas C is directly entered each conversion tube of radiant section in square chest type primary reformer, and hydrocarbon steam conversion deep reaction occurs,
One section of pyrolytic conversion gas D is obtained, the operation temperature of square chest type primary reformer is 800~950 DEG C；
One section of pyrolytic conversion gas D is initially entered after cold mixture heater provides institute's calorific requirement for it, obtains one section of conversion gas E；
One section of conversion gas E enters heat recovery system, obtains conversion gas F, is finally sent to downstream unit.
4. the hydrocarbon steam conversion device according to claim 3 for preheating gaseous mixture with pre-inversion and using one section of gas of high temperature
Conversion process, it is characterised in that: the high-temperature flue gas that the radiant section of square chest type primary reformer generates is for each coil pipe in convection section
Heat source is preheated, convection section is discharged in the low-temperature flue gas after cooling.
5. the hydrocarbon steam conversion device according to claim 3 for preheating gaseous mixture with pre-inversion and using one section of gas of high temperature
Conversion process, it is characterised in that: after pre-inversion gas B is incorporated process steam, further according to needing to be added part CO2, turned with adjustment
Change the composition of gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820508.4A CN108975271B (en) | 2018-07-24 | 2018-07-24 | Hydrocarbon steam conversion device with pre-conversion function and utilizing high-temperature first-stage gas to preheat mixed gas and conversion process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820508.4A CN108975271B (en) | 2018-07-24 | 2018-07-24 | Hydrocarbon steam conversion device with pre-conversion function and utilizing high-temperature first-stage gas to preheat mixed gas and conversion process |
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| CN108975271A true CN108975271A (en) | 2018-12-11 |
| CN108975271B CN108975271B (en) | 2020-05-05 |
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| CN201810820508.4A Active CN108975271B (en) | 2018-07-24 | 2018-07-24 | Hydrocarbon steam conversion device with pre-conversion function and utilizing high-temperature first-stage gas to preheat mixed gas and conversion process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203295195U (en) * | 2013-07-11 | 2013-11-20 | 新疆天运化工有限公司 | Gaseous hydrocarbon steam conversion device for preparing synthetic ammonia |
| CN104150440A (en) * | 2014-08-29 | 2014-11-19 | 四川天一科技股份有限公司 | Method for producing hydrogen by light hydrocarbon primary steam reforming with heat exchange pre-reforming |
| CN104876186A (en) * | 2015-05-14 | 2015-09-02 | 四川天一科技股份有限公司 | Light dydrocarbon steam-conversion hydrogen production method with flue gas heat transfer pre-conversion |
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2018
- 2018-07-24 CN CN201810820508.4A patent/CN108975271B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203295195U (en) * | 2013-07-11 | 2013-11-20 | 新疆天运化工有限公司 | Gaseous hydrocarbon steam conversion device for preparing synthetic ammonia |
| CN104150440A (en) * | 2014-08-29 | 2014-11-19 | 四川天一科技股份有限公司 | Method for producing hydrogen by light hydrocarbon primary steam reforming with heat exchange pre-reforming |
| CN104876186A (en) * | 2015-05-14 | 2015-09-02 | 四川天一科技股份有限公司 | Light dydrocarbon steam-conversion hydrogen production method with flue gas heat transfer pre-conversion |
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| CN108975271B (en) | 2020-05-05 |
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