CN209352568U - A kind of device of continuous production Ti-MWW molecular sieve - Google Patents
A kind of device of continuous production Ti-MWW molecular sieve Download PDFInfo
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- CN209352568U CN209352568U CN201822255061.9U CN201822255061U CN209352568U CN 209352568 U CN209352568 U CN 209352568U CN 201822255061 U CN201822255061 U CN 201822255061U CN 209352568 U CN209352568 U CN 209352568U
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- titanium tetrachloride
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- nitrogen
- heating furnace
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Abstract
The utility model discloses a kind of Ti-MWW molecular sieve process units, described device includes: reactor, nitrogen supply side, titanium tetrachloride supply side, nitrogen heating furnace, titanium tetrachloride heating furnace, preheater, device for absorbing tail gas；Nitrogen supply side and titanium tetrachloride supply side have metering control respectively；The reactor connects feed preheater, and reactor top is equipped with catalyst precursor feed opening, and lower part is equipped with the drain hole of synthetic catalyst；The preheater is separately connected nitrogen heating furnace and titanium tetrachloride heating furnace；Nitrogen heating furnace connects nitrogen supply side, and preheater is entered after heating, and titanium tetrachloride heating furnace connects titanium tetrachloride supply side, and titanium tetrachloride supply side enters heating furnace after nitrogen pressurizes, and preheater is entered after heating, enters reactor after preheated device mixing preheating.It has the following advantages that, reaction unit is continuous, and easy to operate to be easy to get, adjusting each device parameter can control the yield and selectivity of molecular sieve.
Description
Technical field
The utility model designs the device of continuous production Ti-MWW molecular sieve, belongs to chemical process and apparatus field.
Background technique
Titanium Sieve Molecular Sieve Ti-MWW is a kind of novel molecular sieve with unique cellular structure, is that current alkene epoxidation is anti-
Most effective titanium-silicon molecular sieve catalyst in answering, the advantage is that: low production cost, presoma can use a variety of method open bores
Road structure, Ti-MWW shows more high catalytic activity in various types of olefins oxidation reaction, in ketone Ammoximation reaction, the choosing of oxime
Selecting property height.Ti-MWW is to be introduced into transition metal element titanium in the framework of molecular sieve with MWW structure, and one kind of formation has excellent
The novel titanosilicate of good selective paraffin oxidation catalytic performance, not only with the oxidation susceptibility of titanium, and the shape-selective effect with MWW
With excellent stability, the green catalysis system of molecular sieve and hydrogen peroxide composition has good prospects for commercial application.It is existing
Technology produces molecular sieve and uses autoclave intermittent reaction, and reaction is discontinuous, needs filler repeatedly, discharges.
Utility model content
The purpose of this utility model is to provide a kind of continuous production Ti-MWW molecular sieve devices.The present apparatus realizes catalysis
Agent produces serialization, and easy to operate, can adjust the yield and selectivity of molecular sieve by adjusting each device parameter.
The utility model, which is realized in, realizes a kind of above-mentioned purpose: continuous production Ti-MWW molecular sieve device,
Described device includes that reactor described device includes: reactor 1, nitrogen supply side 4, titanium tetrachloride supply side 5, nitrogen
Gas heating furnace 8, titanium tetrachloride heating furnace 9, preheater 10, device for absorbing tail gas 13；
The reactor connects feed preheater 10, and reactor top is equipped with catalyst precursor feed opening 11, lower part
Drain hole 12 equipped with synthetic catalyst；
The preheater 10 is separately connected nitrogen heating furnace 8 and titanium tetrachloride heating furnace 9；
The nitrogen heating furnace 8 connects nitrogen supply side 4, and the titanium tetrachloride heating furnace 9 connects titanium tetrachloride supply side
5, the titanium tetrachloride supply side 5 connects nitrogen pipeline 5-1.
Further, in the above-mentioned technical solutions, the reactor volume is 1m3。
Further, in the above-mentioned technical solutions, the reactor catalyst presoma charging is the 70- of reactor volume
80%.
Further, in the above-mentioned technical solutions, inside the reactor 1 further include fan-shaped agitating paddle for stirring
2。
Further, in the above-mentioned technical solutions, thermometer 3 is equipped in the reactor 1.
Further, in the above-mentioned technical solutions, nitrogen stream is equipped between the nitrogen heating furnace 8 and nitrogen supply side 4
Meter 6 is equipped with titanium tetrachloride flowmeter 7 between the titanium tetrachloride heating furnace 9 and titanium tetrachloride supply side 5.
Further, in the above-mentioned technical solutions, heat tape 1-1 is equipped with outside the reactor 1.
Further, in the above-mentioned technical solutions, it is inhaled at the top of the reactor 1 by exhaust line 1-2 connection tail gas
Receiving apparatus 13.
Further, in the above-mentioned technical solutions, connected between the reactor 1 and preheater 10 by connecting pipeline 1-3
It connects；The device for absorbing tail gas 13, connecting pipeline 1-3, exhaust line 1-2 material are titanium.
Molecular sieve process units provided by the utility model, has the advantage that reaction unit is continuous, easy to operate easy
, adjusting each device parameter can control the yield and selectivity of molecular sieve.
Detailed description of the invention
1 width of the utility model attached drawing,
Fig. 1 is Ti-MWW molecular sieve process units structural schematic diagram；
Wherein, 1, reactor, 2, agitating paddle, 3, thermometer, 4, nitrogen supply side, 5, titanium tetrachloride supply side, 6, nitrogen
Flowmeter, 7, titanium tetrachloride flowmeter, 8, nitrogen heating furnace, 9, titanium tetrachloride heating furnace, 10, preheater, 11, complex catalyst precursor
Body feed opening, 12, molecular sieve drain hole, 13, absorption storage tank, 1-1, heat tape, 1-2, exhaust handle money, 1-3 connecting pipeline.
Specific embodiment
Following non-limiting embodiments can make those skilled in the art that the utility model be more fully understood, but
The utility model is not limited in any way.
Embodiment 1
As shown in Figure 1, a kind of continuous production Ti-MWW molecular sieve device, described device includes reactor described device packet
Include: reactor 1, nitrogen supply side 4, titanium tetrachloride supply side 5, nitrogen heating furnace 8, titanium tetrachloride heating furnace 9, preheater 10,
Device for absorbing tail gas 13；
The reactor connects feed preheater 10, and reactor top is equipped with catalyst precursor feed opening 11, lower part
Drain hole 12 equipped with synthetic catalyst；
The preheater 10 is separately connected nitrogen heating furnace 8 and titanium tetrachloride heating furnace 9；
The nitrogen heating furnace 8 connects nitrogen supply side 4, and the titanium tetrachloride heating furnace 9 connects titanium tetrachloride supply side
5, the titanium tetrachloride supply side 5 connects nitrogen pipeline 5-1.
The reactor volume is 1m3。
The reactor catalyst presoma charging is the 70-80% of reactor volume.
It further include the fan-shaped agitating paddle 2 for stirring inside the reactor 1.
Thermometer 3 is equipped in the reactor 1.
Be equipped with nitrogen stream meter 6 between the nitrogen heating furnace 8 and nitrogen supply side 4, the titanium tetrachloride heating furnace 9 with
Titanium tetrachloride flowmeter 7 is equipped between titanium tetrachloride supply side 5.
Heat tape 1-1 is equipped with outside the reactor 1.
Pass through exhaust line 1-2 connection device for absorbing tail gas 13 at the top of the reactor 1.
It is connected between the reactor 1 and preheater 10 by connecting pipeline 1-3；The device for absorbing tail gas 13, connection
Pipeline 1-3, exhaust line 1-2 material are titanium.
Reactor, nitrogen is added by feed opening 11 including the MWW Jing Guo nitric acid treatment in Ti-MWW molecular sieve process units
Enter preheater 10 after flowmeter 6 enters in nitrogen heating furnace 8 and preheated from nitrogen storage tank 4, passes through nitrogen pipeline 5-1
Pressurize to titanium-tetrachloride storage tank 5, titanium tetrachloride from after pressurization titanium-tetrachloride storage tank 5 by titanium tetrachloride flowmeter 7 into
Enter titanium tetrachloride heating furnace 9, the titanium tetrachloride and nitrogen after preheating enter preheater 10, by preheater and reaction tube 1-3 from
Reactor bottom enters reactor, and reactor 1 is heated by heat tape 1-1, measures temperature in reactor with thermometer 3
Degree, titanium tetrachloride and nitrogen after reaction enter tourie 13 by exhaust pipe 1-2, and catalyst obtained passes through blowing after reaction
Mouth 12 is released.
300kgMWW catalyst is loaded into reaction kettle, opens stirring, titanium-tetrachloride storage tank temperature is warming up to 350-400
DEG C and be forced into 4-5mpa with nitrogen, adjust 350-400 DEG C of nitrogen heating furnace temperature, adjust 400-450 DEG C of preheater temperature, to
Reaction kettle is heated to 400-450 DEG C, opens nitrogen stream meter 6 and titanium tetrachloride flowmeter 7, by nitrogen and is transported to each self-heating
In furnace, the material after heating enters preheater mixing, and the mixture after preheating is transported in reactor, remaining four chlorinations after reaction
Titanium and nitrogen enter absorption tower, and nitrogen is fed with 8-10m3/h, and titanium tetrachloride is fed with 15-20kg/h, and titanium tetrachloride and MWW exist
Reaction in reaction kettle.
It is only the Technology origin and synthesis feature for illustrating the utility model in above-described embodiment, it cannot be said that bright practical new
Type is limited only in above-described embodiment, all according to the spirit of the present invention substantially change and modification for being done, is belonged to practical
Within novel protection scope.
Claims (8)
1. a kind of continuous production Ti-MWW molecular sieve device, it is characterised in that:
Described device include reactor described device include: reactor (1), nitrogen supply side (4), titanium tetrachloride supply side (5),
Nitrogen heating furnace (8), titanium tetrachloride heating furnace (9), preheater (10), device for absorbing tail gas (13)；
The reactor connects feed preheater (10), and reactor top is equipped with catalyst precursor feed opening (11), lower part
Drain hole (12) equipped with synthetic catalyst；
The preheater (10) is separately connected nitrogen heating furnace (8) and titanium tetrachloride heating furnace (9)；
The nitrogen heating furnace (8) connects nitrogen supply side (4), titanium tetrachloride heating furnace (9) the connection titanium tetrachloride supply
It holds (5), the titanium tetrachloride supply side (5) connects nitrogen pipeline (5-1).
2. the apparatus according to claim 1, it is characterised in that: the reactor volume is 1m3。
3. the apparatus according to claim 1, it is characterised in that: it further includes for stirring that the reactor (1) is internal
Fan-shaped agitating paddle (2).
4. the apparatus according to claim 1, it is characterised in that: be equipped with thermometer (3) in the reactor (1).
5. according to device described in claim 1, it is characterised in that: set between the nitrogen heating furnace (8) and nitrogen supply side (4)
Have nitrogen stream meter (6), titanium tetrachloride flow is equipped between the titanium tetrachloride heating furnace (9) and titanium tetrachloride supply side (5)
It counts (7).
6. according to device described in claim 1, it is characterised in that: be equipped with heat tape (1-1) outside the reactor (1).
7. according to device described in claim 1, it is characterised in that: at the top of the reactor (1) even by exhaust line (1-2)
Connect device for absorbing tail gas (13).
8. according to device described in claim 1, it is characterised in that: pass through between the reactor (1) and preheater (10) and connect
Pipeline (1-3) connection；The device for absorbing tail gas (13), connecting pipeline (1-3), exhaust line (1-2) material are titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822255061.9U CN209352568U (en) | 2018-12-29 | 2018-12-29 | A kind of device of continuous production Ti-MWW molecular sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822255061.9U CN209352568U (en) | 2018-12-29 | 2018-12-29 | A kind of device of continuous production Ti-MWW molecular sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209352568U true CN209352568U (en) | 2019-09-06 |
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ID=67802018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822255061.9U Active CN209352568U (en) | 2018-12-29 | 2018-12-29 | A kind of device of continuous production Ti-MWW molecular sieve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209352568U (en) |
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2018
- 2018-12-29 CN CN201822255061.9U patent/CN209352568U/en active Active
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