CN106542589A - MTO chilled water (chw)s and washing water purification process technique - Google Patents
MTO chilled water (chw)s and washing water purification process technique Download PDFInfo
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- CN106542589A CN106542589A CN201510603656.7A CN201510603656A CN106542589A CN 106542589 A CN106542589 A CN 106542589A CN 201510603656 A CN201510603656 A CN 201510603656A CN 106542589 A CN106542589 A CN 106542589A
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Abstract
The invention provides a kind of MTO chilled water (chw)s for being related to coal chemical technology and washing water purification process technique, the technique includes：Carry out to MTO chilled water (chw)s and washing water that solid-liquid is biphase to be separated, isolate wherein entrained solid catalyst granules and by-product；During biphase detached of solid-liquid is carried out, filter element in filter is regenerated using recoil and the mode such as blowback and Chemical cleaning, to remove the catalyst granules and by-product being attached in filter element surface and duct；And the detection of regeneration efficiency is carried out to the filter element after Chemical cleaning, to verify Chemical cleaning effect；Catalyst underflow after solid-liquid separation is carried out pressing dry process, the solid catalyst particle of relatively low moisture content is obtained.
Description
Technical field
The present invention is applied to Coal Chemical Industry methanol and prepares alkene (MTO) technical field, is related to a kind of removal present in MTO chilled water (chw)s and washing water
The method of solid catalyst particle and by-product, it is adaptable to process the biphase process being separated by filtration of solid-liquid in MTO chilled water (chw)s and washing water.Specifically,
The invention provides a kind of MTO chilled water (chw)s and washing water purification process technique.
Background technology
Methanol prepares alkene (MTO) technology and refers to by feed coal vaporizing system for methanol, and Jing catalytic reactions prepare the mistake of low-carbon alkene to methanol again
Journey.Existing MTO devices are that three-level or tetra-cyclone are equipped with after reactor, cyclone separator pyroreaction gas out enter chilling and
Washing workshop section is lowered the temperature and dust removal process.Taking the part chilled water (chw) after heat and washing water carries out UTILIZATION OF VESIDUAL HEAT IN, or part into separation of olefins unit
Chilled water (chw) and the direct decontamination water treatment system of washing water are processed.But as cyclone separator structure is limited, which can only will be particle diameter in reaction gas big
Separate in 10 microns of solid catalyst particles, and the solid catalyst particle of particle diameter≤10 micron and by-product be due to realizing separating,
And follow reaction gas to fully enter in chilled water (chw) and washing water, this solid catalyst is zeolite molecules sieve structure, and meeting water fails, no recovery value,
If but chilled water (chw) and washing water carry out UTILIZATION OF VESIDUAL HEAT IN into separation of olefins unit, occurring heat exchanger blocking, heat exchange effect in may result in running
The problems such as rate reduction, produce load reduction, the increase of device wear-out failure, high maintenance cost, large steam consumption, if chilled water (chw) and washing water directly go
Sewage disposal system is processed, then can greatly increase the burden of sewage disposal.So the chilled water (chw) containing solid catalyst particle is necessary with washing water
Purified treatment is carried out, this can just solve the problems, such as that existing system blocking is serious, and then reduce system operation energy consumption, reduce System steam and water
The consumption of resource, ensuring equipment stable operation reduce maintenance cost, while lifting the purpose of produce load.
Existing isolation of purified mode has cyclone hydraulic separators, bag filter, wire gauzee filter and purpose ceramic-film filter etc..Due to its own knot
Structure and the upper existing defects of design, the isolation of purified effect of aforesaid way are generally very poor.
The primarily discrete low precision of cyclone hydraulic separators, it is impossible to remove the solid particle of particle diameter≤5 micron, and this partial catalyst amounts of particles is accounted for
The 70%～80% of total amount.Bag filter is equally that separation accuracy is poor, and filter bag can also be corroded by components such as the alkene in fluid, causes to filter
The failure of device.Wire gauzee filter separation accuracy is poor, and efficiency is low, filter element cracky, and filter element cannot carry out on-line cleaning.Ceramic membrane mistake
Filter is that, in the form of cross flow filter, energy consumption is very high, is typically only used for the smaller system for the treatment of capacity, and earthenware is easily damaged, and sealing is easy
Reveal, it is impossible to cleaning and regeneration.Existing segregation apparatuss are due to filter medium itself existing problems and the defect of system design, and lack effectively
Cleaning and regeneration method, causes normal filtration time very short, during operation pressure reduction raise it is fast, need frequently to split out filter element carry out cleaning, keep in repair and
Change, it is impossible to realize continuous and steady operation, it is impossible to meet MTO chilled water (chw)s and washing hydraulic art requirement, so both increased equipment investment and
Day-to-day operation cost, while also add labor intensity, reduces normal produce load, causes very big impact to the benefit of enterprise.
The content of the invention
The invention provides a kind of new MTO chilled water (chw)s and washing water purification process technique, solve the problems, such as in prior art.
On the one hand, the invention provides a kind of MTO chilled water (chw)s and washing water purification process technique, the technique includes：
Carry out to MTO chilled water (chw)s and washing water that solid-liquid is biphase to be separated, isolate wherein entrained solid catalyst granules and by-product；
During biphase detached of solid-liquid is carried out, by the way of the recoil and blowback to filter in filter element regenerate, with removing
The catalyst granules being attached in filter element surface and duct and by-product；
During biphase detached of solid-liquid is carried out, Chemical cleaning is carried out to filter element in filter, filter element table is attached to remove
Catalyst granules and by-product in face and duct；
During biphase detached of solid-liquid is carried out, the detection of regeneration efficiency is carried out to the filter element after Chemical cleaning, it is chemical clear to verify
Wash effect；
Catalyst underflow after solid-liquid separation is carried out pressing dry process, the solid catalyst particle of low moisture content can be obtained.
In one preferred embodiment, the density of described MTO chilled water (chw)s is 900～950kg/m3, and operating temperature is 900～950kg/m3,
Operating temperature is 90～130 DEG C, 1.0～1.5MPa of operating pressure, viscosity 0.279cp, pH value 6～8.5；300～1500mg/L of catalyst content, urges
Agent density：850kg/m3, catalyst particle size are 0.1～100 micron.
Another preferred embodiment in, the density of described MTO washing waters is 900～950kg/m3, and operating temperature is 60～110 DEG C,
1.0～1.5MPa of operating pressure, viscosity 0.279cp, pH value 6～8.5；300～1500mg/L of catalyst content, density of catalyst：850kg/m3,
Catalyst particle size is 0.1～60 micron.
Another preferred embodiment in, described purge gas is compressed air or nitrogen or steam, 0 DEG C～280 DEG C of temperature, pressure：
0.6MPa～2.0MPa.
Another preferred embodiment in, described recoil liquid is clean chilled water (chw) and washing water, temperature 60 C～130 DEG C, pressure
Power：0.6MPa～2.0MPa.
Another preferred embodiment in, described chemical cleaning solution is nitric acid that concentration is 2%～20%, hypochlorous acid, citric acid, grass
Acid solution or sodium bicarbonate, potassium hydroxide, sodium hydroxide, aqua calcises.
Another preferred embodiment in, it is that toluene, dimethylbenzene, xylol, o-Dimethylbenzene have that described chemical cleaning solution is concentration
Machine solvent.
Another preferred embodiment in, wherein after the biphase separation of solid-liquid has been carried out, in water, contained solid catalysis agent content is down to
Below 30mg/L.
Another preferred embodiment in, wherein catalyst underflow Jing after pressing dry, moisture content≤50%.
Another preferred embodiment in, the detection means of pressure reduction and flow is provided with described Chemical cleaning unit, for authenticated
The effect of filtering element regeneration.
Description of the drawings
Fig. 1 is the structure block diagram of the MTO chilled water (chw)s according to one embodiment of the present invention and washing water purification process technique；
Specific embodiment
To make MTO chilled water (chw)s of the present invention clearer with the technical scheme and advantage of washing water purification process technique, below in conjunction with the accompanying drawings to this
Invention specific embodiment is described in further detail：
The invention provides a kind of MTO chilled water (chw)s and washing water purification process technique, the technique includes：
Carry out to MTO chilled water (chw)s and washing water that solid-liquid is biphase to be separated, isolate wherein entrained solid catalyst granules and by-product；
During biphase detached of solid-liquid is carried out, online blowback is carried out to filter element in filter with gas, be attached to removing
Catalyst granules and by-product in filtering element surface and duct；
During biphase detached of solid-liquid is carried out, Chemical cleaning is carried out to filter element in filter, filter element table is attached to remove
Catalyst granules and by-product in face and duct；
During biphase detached of solid-liquid is carried out, the filter element to having carried out Chemical cleaning carries out online detection, chemical clear to verify
Wash effect；
Catalyst underflow after solid-liquid separation is carried out pressing dry process, the solid catalyst particle of low moisture content can be obtained.
In one preferred embodiment, the density of described MTO chilled water (chw)s is 900～950kg/m3, and operating temperature is 90～130 DEG C,
1.0～1.5MPa of operating pressure, viscosity 0.279cp, pH value 6～8.5；300～1500mg/L of catalyst content, density of catalyst：850kg/m3,
Catalyst particle size is 1～20 micron.
Another preferred embodiment in, the density of described MTO washing waters is 900～950kg/m3, and operating temperature is 60～110 DEG C,
1.0～1.5MPa of operating pressure, viscosity 0.279cp, pH value 6～8.5；100～1000mg/L of catalyst content, density of catalyst：850kg/m3,
Catalyst particle size is 1～20 micron.
Preferably, described purge gas is compressed air or nitrogen or steam, and 180 DEG C～280 DEG C of gas temperature, gas pressure：
1.0MPa～1.6MPa.
Preferably, described chemical cleaning solution be nitric acid that concentration is 2%～20%, hypochlorous acid, citric acid, oxalic acid solution or sodium bicarbonate,
Potassium hydroxide, sodium hydroxide, aqua calcises.
Preferably, it is toluene, dimethylbenzene, xylol, o-Dimethylbenzene organic solvent that described chemical cleaning solution is concentration.
Preferably, after the biphase separation of described solid-liquid has been carried out, in water, contained solid catalysis agent content is down to below 30mg/L.
Preferably, described catalyst underflow is Jing after pressing dry, moisture content≤50%.
Preferably, the detection means of pressure reduction and flow in described Chemical cleaning unit, is provided with, for verifying the effect of filter element regeneration.
As shown in figure 1, the MTO chilled water (chw)s and washing water purification process technique, including：(1) Chemical cleaning unit, (2) purification separation
Unit, (3) flow and pressure differential detection, (4) blow-back unit, (5) Liquid backwash unit, (6) underflow collector unit, (7) underflow are pressed dry
Unit.
As shown in figure 1, pre-configured chemical cleaning solution is housed inside Chemical cleaning unit (1), by cleaning pump by chemical cleaning solution
The chemical cleaning solution configured inside tank squeezes into purification separation unit (2), after the filter element through purification separation unit (2) inside, returns again to
Chemical cleaning unit (1), so as to form the loop of wash cycles, realizes the wash cycles to purification separation unit (2) inner filter element；
Pressure reduction and flow detection (3) are provided with Chemical cleaning unit (1), for verifying purification separation unit (2) inner filter element
The effect of cleaning and regeneration；
The catalyst underflow that purification separation unit (2) is isolated is collected into underflow collector unit (6)；Then by underflow collector unit
(6) the catalyst underflow in is delivered to underflow and press dry unit (7), then press dry to underflow and be passed through in device gas and press dry moisture, can obtain low containing
The solid catalyst particle of humidity.
The foregoing is only the explanation for accompanying drawing being combined to the preferred embodiment of the present invention, but these explanations can not be considered as limiting this
Bright scope, protection scope of the present invention are limited by appended claims, any modification for being made on the basis of the claims in the present invention, replacement,
Improve etc., it is all contained within protection scope of the present invention.
Claims (10)
1. a kind of MTO chilled water (chw)s and washing water purification process technique, the technique include：
Carry out to MTO chilled water (chw)s and washing water that solid-liquid is biphase to be separated, isolate wherein entrained solid catalyst granules and by-product；
During biphase detached of solid-liquid is carried out, by the way of the recoil and blowback to filter in filter element regenerate, to remove attachment removal
Catalyst granules and by-product in filter element surface and duct；
During biphase detached of solid-liquid is carried out, Chemical cleaning is carried out to filter element in filter, with remove be attached to filter element surface and
Catalyst granules and by-product in duct；
During biphase detached of solid-liquid is carried out, the detection of regeneration efficiency is carried out to the filter element after Chemical cleaning, to verify that Chemical cleaning is imitated
Really；
Catalyst underflow after solid-liquid separation is carried out pressing dry process, the solid catalyst particle of low moisture content can be obtained.
2. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that the density of described MTO chilled water (chw)s
For 900～950kg/m3, operating temperature is 90～130 DEG C, 1.0～1.5MPa of operating pressure, viscosity 0.279cp, pH value 6～8.5；Catalyst content
300～1500mg/L, density of catalyst：850kg/m3, catalyst particle size are 0.1～100 micron.
3. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that the density of described MTO washing waters
For 900～950kg/m3, operating temperature is 60～110 DEG C, 1.0～1.5MPa of operating pressure, viscosity 0.279cp, pH value 6～8.5；Catalyst content
300～1500mg/L, density of catalyst：850kg/m3, catalyst particle size are 0.1～60 micron.
4. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that described purge gas is that compression is empty
Gas or nitrogen or steam, 0 DEG C～280 DEG C of temperature, pressure：0.6MPa～2.0MPa.
5. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that described recoil liquid is clean
Chilled water (chw) and washing water, temperature 60 C～130 DEG C, pressure：0.6MPa～2.0MPa.
6. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that described chemical cleaning solution is concentration
For 2%～20% nitric acid, hypochlorous acid, citric acid, oxalic acid solution or sodium bicarbonate, potassium hydroxide, sodium hydroxide, aqua calcises.
7. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that described chemical cleaning solution be toluene,
Dimethylbenzene, xylol, o-Dimethylbenzene organic solvent.
8. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that biphase in the solid-liquid for having carried out described
Separation after, in water, contained solid catalysis agent content is down to below 30mg/L.
9. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that described catalyst underflow Jing is pressed dry
Afterwards, moisture content≤50%.
10. MTO chilled water (chw)s according to claim 1 and washing water purification process technique, it is characterised in that arrange in Chemical cleaning unit
There is the detection means of pressure reduction and flow, for verifying the effect of filter element regeneration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510603656.7A CN106542589A (en) | 2015-09-21 | 2015-09-21 | MTO chilled water (chw)s and washing water purification process technique |
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| CN201510603656.7A CN106542589A (en) | 2015-09-21 | 2015-09-21 | MTO chilled water (chw)s and washing water purification process technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328761A (en) * | 2017-08-29 | 2018-07-27 | 华东理工大学 | MTO washes the method and device of hydraulic art continuous operation cycle stretch-out |
| CN108654214A (en) * | 2017-03-31 | 2018-10-16 | 神华集团有限责任公司 | The regeneration method and regenerative system of F- T synthesis filter element |
| CN109382043A (en) * | 2017-08-07 | 2019-02-26 | 神华集团有限责任公司 | The in situ regeneration method of Fischer-Tropsch synthesis device filter element and the F- T synthesis system of application in situ regeneration method |
| CN111991898A (en) * | 2020-07-30 | 2020-11-27 | 国家能源集团宁夏煤业有限责任公司 | Solid-liquid separation method for Fischer-Tropsch synthetic wax |
| RU2817961C1 (en) * | 2020-09-17 | 2024-04-23 | Ист Чайна Юниверсити Оф Сайенс Энд Текнолоджи | Method and device for separation in fluidized bed for cooling water used in process of converting methanol to olefins |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951098A (en) * | 2014-04-25 | 2014-07-30 | 江苏久吾高科技股份有限公司 | Solid and oil removal method and device for chilled water and washed water in MTO (methanol to olefin) process |
| CN203820559U (en) * | 2014-04-25 | 2014-09-10 | 江苏久吾高科技股份有限公司 | Device for solid removal and oil removal of quenching water and washing water in process of producing olefins from methanol |
| CN204275622U (en) * | 2014-11-28 | 2015-04-22 | 上海蓝科石化工程技术有限公司 | The regenerative system of a kind of MTO washing water filter and this filter |
| CN104649446A (en) * | 2013-11-15 | 2015-05-27 | 江苏克莱斯克能源装备有限公司 | Liquid-solid separation method and device for MTO (methanol to olefins) quenching water and washing water |
-
2015
- 2015-09-21 CN CN201510603656.7A patent/CN106542589A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649446A (en) * | 2013-11-15 | 2015-05-27 | 江苏克莱斯克能源装备有限公司 | Liquid-solid separation method and device for MTO (methanol to olefins) quenching water and washing water |
| CN103951098A (en) * | 2014-04-25 | 2014-07-30 | 江苏久吾高科技股份有限公司 | Solid and oil removal method and device for chilled water and washed water in MTO (methanol to olefin) process |
| CN203820559U (en) * | 2014-04-25 | 2014-09-10 | 江苏久吾高科技股份有限公司 | Device for solid removal and oil removal of quenching water and washing water in process of producing olefins from methanol |
| CN204275622U (en) * | 2014-11-28 | 2015-04-22 | 上海蓝科石化工程技术有限公司 | The regenerative system of a kind of MTO washing water filter and this filter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108654214A (en) * | 2017-03-31 | 2018-10-16 | 神华集团有限责任公司 | The regeneration method and regenerative system of F- T synthesis filter element |
| CN108654214B (en) * | 2017-03-31 | 2021-03-16 | 神华集团有限责任公司 | Regeneration method and regeneration system of Fischer-Tropsch synthesis filter element |
| CN109382043A (en) * | 2017-08-07 | 2019-02-26 | 神华集团有限责任公司 | The in situ regeneration method of Fischer-Tropsch synthesis device filter element and the F- T synthesis system of application in situ regeneration method |
| CN108328761A (en) * | 2017-08-29 | 2018-07-27 | 华东理工大学 | MTO washes the method and device of hydraulic art continuous operation cycle stretch-out |
| CN108328761B (en) * | 2017-08-29 | 2023-08-29 | 华东理工大学 | Method and device for prolonging continuous operation period of MTO water washing process |
| CN111991898A (en) * | 2020-07-30 | 2020-11-27 | 国家能源集团宁夏煤业有限责任公司 | Solid-liquid separation method for Fischer-Tropsch synthetic wax |
| RU2817961C1 (en) * | 2020-09-17 | 2024-04-23 | Ист Чайна Юниверсити Оф Сайенс Энд Текнолоджи | Method and device for separation in fluidized bed for cooling water used in process of converting methanol to olefins |
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Application publication date: 20170329 |