CN105586088A - Dry gas condensation liquid treatment method - Google Patents
Dry gas condensation liquid treatment method Download PDFInfo
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- CN105586088A CN105586088A CN201410573709.0A CN201410573709A CN105586088A CN 105586088 A CN105586088 A CN 105586088A CN 201410573709 A CN201410573709 A CN 201410573709A CN 105586088 A CN105586088 A CN 105586088A
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- dry gas
- lime set
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Abstract
The invention discloses a dry gas condensation liquid treatment method. The method comprises: dividing dry gases with different raw materials into a heavy component dry gas group and a light component dry gas group; treating the dry gases by using different dry gas desulfurization devices respectively; feeding the condensation liquid generated by treating the heavy component dry gas group through a dry gas liquid separation tank into a distillation apparatus through a pipeline for treatment; and feeding the condensation liquid generated by treating the light component dry gas group through the dry gas liquid separation tank into a wax oil catalytic device absorption stabilization system for treatment. By virtue of the technical scheme of the invention, dry gas condensation liquid can be prevented from causing quality influence and safety and environmental protection risks to follow-up devices.
Description
Technical field
The present invention relates to a kind of method of processing Upgrade for Dry Gas Desulphurization Unit raw material dry gas lime set (being called for short dry gas lime set), to keep awayExempt from dry gas lime set to other device impacts, reduce and produce light sump oil.
Background technology
It is dry that Upgrade for Dry Gas Desulphurization Unit is mainly used to process wax catalysis dry gas, heavy-oil catalytic dry gas, coking dry gas, hydrogenationGas and torch reclaim gas, and as shown in Figure 1, Upgrade for Dry Gas Desulphurization Unit comprises that dry gas divides flow container 1, dry gas absorption tower 2, dryGas amine liquid recycling can 3, solvent circulating pump 4, solvent tanker 5, dry gas divide flow container 1 by pipeline g1 receive fromThe dry gas of hydrogenation plant, receives to conduct oneself with dignity by pipeline g2 and urges the dry gas of device, receives from separately by pipeline g3The dry gas of one hydrogenation plant, by pipeline g4 receive from the dry gas of coking plant, by pipeline g5 receive fromThe dry gas of wax catalysis device, the torch gas by pipeline g6 reception from system, the dry gas that dry gas divides flow container to produceA lime set part by pipeline g7 be disposed to low pressure gas pipe network, a part be disposed to wax catalysis by pipeline g8Device absorption stabilizing system, a part are disposed to light dirty tank field by pipeline g9; Because raw material dry gas kind is more,Slightly fluctuation of upstream device operation, will cause material to carry secretly, produces raw material dry gas lime set, has some to carry material secretlyBe because the compressed liquefaction of pressure rising gas produces, so the composition of dry gas lime set is also various, what have is dryAirsetting fluid component is heavier, is diesel component, and some dry gas lime set components are lighter, is light naphthar or even liquefied gasComponent.
Existing dry gas lime set processing mode has following three kinds:
One, utilize dry gas to divide flow container self-pressure to deliver to light slop tank, then send wax catalysis device freshening by light slop tank;Can there is following shortcoming in this processing mode: when dry gas lime set composition is lighter, can cause light component to overflow in light dirty tank fieldGo out, run into naked light and also can cause fire explosion, have safety and environmental protection risk; Because hydraulic fluid process is to adoptDry gas self-pressure, if misoperation is dry gas raw material buffering tank pressure sky, will cause sulfide hydrogen dry gas at light dirty tankOverflow, can cause personnel poisoning, run into naked light and also can cause fire explosion, have safety and environmental protection risk.
Two, utilize dry gas to divide flow container self-pressure to deliver to low pressure gas lime set tank, then send wax oil to urge by low pressure gas lime set tankGasifying device freshening; Can there is following shortcoming in this processing mode: when dry gas lime set composition is lighter, and can be at low pressure gasIn pipe network, gasify, come back to torch gas holder, again get back to Upgrade for Dry Gas Desulphurization Unit through compressor compresses and form extremely and followRing; If dry gas lime set composition is heavier, do while exceeding 205 DEG C of indexs, send wax catalysis device to absorb stability seriesSystem freshening, can cause stable gasoline to do defective.
Three, utilize dry gas to divide flow container self-pressure to deliver to wax catalysis device absorption stabilizing system and carry out freshening. This processingCan there is following shortcoming in mode: dry gas lime set composition is heavier, does while exceeding 205 DEG C of indexs, if send wax oil to urgeGasifying device absorbing-stabilizing system freshening, can cause stable gasoline to do defective.
As can be seen here, how to provide a kind of dry gas lime set processing method, avoid dry gas lime set to other device impacts andSafety and environmental protection risk, shortens dry gas lime set and processes intermediate links, reduces and produces light sump oil, and this is that this area needs at presentThe technical problem solving.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the object of the invention is to, a kind of dry gas lime set processing side is providedMethod, avoids dry gas lime set on other device impact and safety and environmental protection risk, and shorten dry gas lime set and process intermediate links,Reduce and produce light sump oil.
A kind of dry gas lime set processing method, comprises the steps:
1) the restructuring grouping dry gas that comprises wax catalysis dry gas and heavy-oil catalytic dry gas is sent into the first Upgrade for Dry Gas Desulphurization UnitProcess, the light component group dry gas that comprises torch recovery gas is sent into the second Upgrade for Dry Gas Desulphurization Unit and process;
2) after the dry gas that restructuring grouping dry gas enters the first Upgrade for Dry Gas Desulphurization Unit divides flow container to process, the lime set of generationForce feed enters distilling apparatus;
3) after the dry gas that light component group dry gas enters the second Upgrade for Dry Gas Desulphurization Unit divides flow container to process, the dry gas of generationLime set force feed is to wax catalysis device absorption stabilizing system;
Step 2), step 3) without sequencing.
Preferably, step 2) in, dry gas lime set force feed speed is 3～4 tons/hour.
Preferably, step 2) in, dry gas divides the liquid volume in flow container to account for dry gas and divides flow container half volume10％～40％。
Preferably, step 2) in, dry gas divides the liquid volume in flow container to account for dry gas and divides flow container half volume15％～35％。
Preferably, step 2) in, dry gas divides the liquid volume in flow container to account for dry gas and divides flow container half volume20％～30％。
Preferably, step 2) in, the dry gas of the first Upgrade for Dry Gas Desulphurization Unit divides flow container to pass through a pipeline and described distillationThe pump that distills the crude oil of device connects, and the dry gas of described the first Upgrade for Dry Gas Desulphurization Unit divides the dry gas lime set of flow container generation from instituteState pipeline and send into described distilling apparatus.
Compared with prior art, a kind of dry gas lime set processing method of the present invention, is divided into the dry gas of different material heavilyComponent dry gas group and light component dry gas group utilize respectively different Upgrade for Dry Gas Desulphurization Units to process, heavy constituent dry gas groupThe lime set producing after dry gas divides flow container to process is sent into distilling apparatus by pipeline and is processed, light component dry gas group warpDry gas produces lime set after dividing flow container to process and delivers to wax catalysis device absorption stabilizing system and process, by the present inventionThis technical scheme, can avoid quality influence and the safety and environmental protection risk of dry gas lime set to follow up device.
Brief description of the drawings
Fig. 1 is the flow chart of dry gas processing method in prior art;
Fig. 2 is the process chart of restructuring grouping dry gas in embodiment of the present invention dry gas processing method;
Fig. 3 is the process chart of light component group dry gas in embodiment of the present invention dry gas processing method.
Detailed description of the invention
For making technical scheme of the present invention clearer, below in conjunction with by specific embodiment, the present invention being carried outDescribe in detail.
The present inventor finds by research: the composition that different raw material dry gas is carried dry gas lime set secretly is different,The scheme of its processing of dry gas lime set of different compositions should be different, and therefore, the inventor abandons prior artIn the time that dry gas lime set is processed, do not consider the processing scheme of its composition, adopt while processing first to different material dry gas lime setCarry out composition analysis, then according to analysis result, to the processing of classifying of raw material dry gas, its lime set also carry out classification placeThe technical scheme of reason. By technical solution of the present invention, can avoid the quality influence of dry gas lime set to follow up device andSafety and environmental protection risk.
The technical scheme of dry gas processing method embodiment of the present invention is as follows:
1, to the processing of classifying of all kinds of dry gas raw materials
In prior art, all kinds of dry gas raw materials are to mix to enter Upgrade for Dry Gas Desulphurization Unit and process, and thisBright all kinds of dry gas are divided into two groups of restructuring grouping and light component groups, enter respectively two cover Upgrade for Dry Gas Desulphurization Units and process,Specifically be grouped as follows: from the wax catalysis dry gas of wax catalysis device and dry from the heavy-oil catalytic of Catalytic UnitThe gas component dry gas group of attaching most importance to enters the first Upgrade for Dry Gas Desulphurization Unit and processes; It is that light component dry gas group enters that torch reclaims gasThe second Upgrade for Dry Gas Desulphurization Unit is processed.
2, the dry gas lime set composition after grouping is analyzed
Two groups of dry gas lime sets that enter the first Upgrade for Dry Gas Desulphurization Unit, the second Upgrade for Dry Gas Desulphurization Unit are formed and densityAnalyze, analysis result sees the following form 1 and table 2:
Dry gas lime set composition and the density of table 1 the first Upgrade for Dry Gas Desulphurization Unit
Table 2 the second Upgrade for Dry Gas Desulphurization Unit dry gas lime set composition and density
Can be drawn by table 1: the wax catalysis dry gas, heavy-oil catalytic dry gas and the Jiao that enter the first Upgrade for Dry Gas Desulphurization UnitThe dry gas lime set composition of changing dry gas is heavier, is diesel component; Sometimes lime set is water component;
Can be drawn by table 2: the torch that enters the second Upgrade for Dry Gas Desulphurization Unit reclaim the dry gas lime set of gas form lighter,For light naphthar component.
3, formulate dry gas lime set processing scheme
1) the dry gas lime set processing of the first Upgrade for Dry Gas Desulphurization Unit
As shown in Figure 2, dry gas divide flow container 6 by pipeline g10 receive from the heavy-oil catalytic dry gas of Catalytic Unit withAnd receive from the wax catalysis dry gas of wax catalysis device by pipeline g11, divide flow container 6 and distilling apparatus at dry gasDistill the crude oil and connect a pipeline g12 between pump 7, heavy-oil catalytic dry gas and wax catalysis dry gas enter the first dry gas desulfurization dressThe dry gas of putting divides in flow container 6 to be processed, and the dry gas lime set obtaining is sent into distilling apparatus from pipeline g12, all the other pipeline a,B, c close.
The concrete operations of dry gas lime set processing are as follows:
Before dry gas lime set is processed, first contact distilling apparatus operating personnel, notice pumps into force feed dry gas lime set to crude oilMouthful, require to be careful the impact of lime set on device operating parameter.
In the time processing, control the force feed speed of dry gas lime set, be controlled at approximately 3～4 tons/hour. Owing to containing in lime setWater, if force feed excessive velocities can cause distilling apparatus electrical desalter circle position to rise, electric current increases.
In the time processing, dry gas divides liquid level of tank to control, and particularly, it is dry that dry gas divides the liquid volume in flow container to account forGas divides 10%～40% of flow container half volume, has both avoided frequent force feed dry gas lime set, also avoids too low the causing of liquid level to alterGas is to distilling apparatus.
Because dry gas lime set force feed to distilling apparatus is to take 0.7MPa dry gas self-pressure to carry out force feed, if misoperation,By dry gas separatory tank pressure sky, can gas blowby to distilling apparatus crude oil pump, cause pump depletion, cause device to stop charging. InstituteWith in lime set force feed process, site operation personnel can not leave, be careful on-the-spot dry gas divide liquid level of tank whether with DCSShow unanimously, if there is stopping extremely in time force feed. Divide after liquid level of tank fault handling dry gas, just allow to continueForce feed.
Divide flow container 6 gas out still to process by the method for prior art from dry gas, repeat no more herein.
2) the dry gas lime set processing of the second Upgrade for Dry Gas Desulphurization Unit
The dry gas of the second Upgrade for Dry Gas Desulphurization Unit divides flow container 8 to receive torch recovery gas by pipeline g13, and dry gas lime set component is dividedAnalysing result is light naphthar, and light naphthar can not impact the absorbing-stabilizing system of wax catalysis device, thereby,As shown in Figure 3, this dry gas lime set is returned by pipeline g14 force feed to the absorbing-stabilizing system of wax catalysis deviceRefining, all the other pipeline d, e close.
Divide flow container 8 gas out still to process by the method for prior art from dry gas, repeat no more herein.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as rightRestriction of the present invention, protection scope of the present invention should be as the criterion with claim limited range. Lead for this technologyThe those of ordinary skill in territory, without departing from the spirit and scope of the present invention, can also make some improvement and profitDecorations, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a dry gas lime set processing method, is characterized in that, comprises the steps:
1) the restructuring grouping dry gas that comprises wax catalysis dry gas and heavy-oil catalytic dry gas is sent into the first Upgrade for Dry Gas Desulphurization UnitProcess, the light component group dry gas that comprises torch recovery gas is sent into the second Upgrade for Dry Gas Desulphurization Unit and process;
2) after the dry gas that restructuring grouping dry gas enters the first Upgrade for Dry Gas Desulphurization Unit divides flow container to process, the lime set of generationForce feed enters distilling apparatus;
3) after the dry gas that light component group dry gas enters the second Upgrade for Dry Gas Desulphurization Unit divides flow container to process, the dry gas of generationLime set force feed is to wax catalysis device absorption stabilizing system;
Step 2), step 3) without sequencing.
2. dry gas lime set processing method as claimed in claim 1, is characterized in that step 2) in, dry gas is solidifyingIt is 3～4 tons/hour that hydraulic pressure send speed.
3. dry gas lime set processing method as claimed in claim 1, is characterized in that step 2) in, dry gas dividesLiquid volume in flow container accounts for dry gas and divides 10%～40% of flow container half volume.
4. dry gas lime set processing method as claimed in claim 1, is characterized in that step 2) in, dry gas dividesLiquid volume in flow container accounts for dry gas and divides 15%～35% of flow container half volume.
5. dry gas lime set processing method as claimed in claim 1, is characterized in that step 2) in, dry gas dividesLiquid volume in flow container accounts for dry gas and divides 20%～30% of flow container half volume.
6. dry gas lime set processing method as claimed in claim 1, is characterized in that step 2) in, firstThe dry gas of Upgrade for Dry Gas Desulphurization Unit divides flow container to be connected with the pump that distills the crude oil of described distilling apparatus by a pipeline, and describedThe dry gas lime set that the dry gas of one Upgrade for Dry Gas Desulphurization Unit divides flow container to produce is sent into described distilling apparatus from described pipeline.
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| CN201410573709.0A CN105586088B (en) | 2014-10-23 | 2014-10-23 | A kind of dry gas lime set processing method |
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| CN201410573709.0A CN105586088B (en) | 2014-10-23 | 2014-10-23 | A kind of dry gas lime set processing method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180657A (en) * | 1996-10-21 | 1998-05-06 | 中国石化茂名石油化工公司 | Technology for preparing hydrogen by mixing dry gas and light oil of refinery |
| CN1763156A (en) * | 2004-10-22 | 2006-04-26 | 中国石油化工股份有限公司 | Process for reducing contents of components above C3 in dry gas |
| JP2006241317A (en) * | 2005-03-03 | 2006-09-14 | Kobe Steel Ltd | Method of hydrocracking petroleum heavy oil |
| CN1923973A (en) * | 2006-05-31 | 2007-03-07 | 中国石油集团工程设计有限责任公司抚顺分公司 | Process flow for raw material pretreatment portion of catalytic dry gas produced phenylethane |
-
2014
- 2014-10-23 CN CN201410573709.0A patent/CN105586088B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180657A (en) * | 1996-10-21 | 1998-05-06 | 中国石化茂名石油化工公司 | Technology for preparing hydrogen by mixing dry gas and light oil of refinery |
| CN1763156A (en) * | 2004-10-22 | 2006-04-26 | 中国石油化工股份有限公司 | Process for reducing contents of components above C3 in dry gas |
| JP2006241317A (en) * | 2005-03-03 | 2006-09-14 | Kobe Steel Ltd | Method of hydrocracking petroleum heavy oil |
| CN1923973A (en) * | 2006-05-31 | 2007-03-07 | 中国石油集团工程设计有限责任公司抚顺分公司 | Process flow for raw material pretreatment portion of catalytic dry gas produced phenylethane |
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| CN105586088B (en) | 2017-10-20 |
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