CN104828892A - Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water - Google Patents
Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water Download PDFInfo
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- CN104828892A CN104828892A CN201510144655.0A CN201510144655A CN104828892A CN 104828892 A CN104828892 A CN 104828892A CN 201510144655 A CN201510144655 A CN 201510144655A CN 104828892 A CN104828892 A CN 104828892A
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- cycle oil
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Abstract
The invention discloses a process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water, and the process includes a coking fractionating tower, a pressure pump, an oil inlet, an oil outlet, a heat exchanger, a water inlet, an input pipe, a deaerator, a steam inlet and a deoxygenated water outlet. The process is characterized by combination of the coking fractionating tower and the deaerator, tower top cycle oil and circulating water heat exchanger is replaced by tower top cycle oil and softened water heat exchange, softened water is heated to about 104 DEG C by heat of the fractionating tower top cycle oil, then enters the deaerator so as to remove O2 component in the softened water, and the softened water is turned into deoxygenated water. Compared with the existing technology, the process has the characteristics of use efficiency improvement, cost reduction and the like by resource integration, is very suitable for use within a facility, and has good popularization value.
Description
One, technical field
The present invention relates to petrochemical complex, deaerated water technique is produced in a kind of fractionation tower top turning oil and softening water heat exchange specifically.
Two, background technology
At present in order to need of production, reduce the corrosion of equipment, the equipment water such as device internally heated oven and steam pockets need remove O in water
2component, what enterprise generally taked is in deoxygenator, pass into a large amount of steam, utilizes high-temperature steam to heat up by water and seethes with excitement, thus remove O in water
2component, produces deaerated water.And delayed coker fractionator top turning oil extracts temperature out at 180 ~ 190 DEG C, tower top temperature needs to control below 120 DEG C, therefore tower top heat is needed to disengage to reduce tower top thermal load, what enterprise generally adopted is install a water cooler in the turning oil flow process of top, recirculated water is utilized to draw heat in the turning oil of top, in the turning oil of top, heat is not used, and adds the cost of operation.
Three, summary of the invention
The present invention is directed to above problem and shortage, provide a kind of can solve above-mentioned 2 problems simultaneously fractionation tower top turning oil and softening water heat exchange produce deaerated water technique.
The present invention for its point of destination technical scheme is:
Deaerated water technique is produced in a kind of fractionation tower top turning oil and softening water heat exchange, it comprises coking fractional distillation column, pressure pump, oil-in, oil outlet, interchanger, water-in, input channel, deoxygenator, steam inlet and deaerated water outlet, it is characterized in that between coking fractional distillation column with deoxygenator, 2 interchanger being installed and being connected with pipeline, because of softening water, relatively to push up turning oil corrodibility little, recirculated water cooling tube side will be pushed up and shell side exchanges, heat exchanger tube pass medium is replaced by top turning oil by original recirculated water, heat exchanger shell pass medium is replaced by softening water by original top turning oil, remove original recirculated water flow process, original softening water is directly entered deoxygenator flow process and change to advanced top turning oil and softening water interchanger, deoxygenator is entered again after softening water and top turning oil heat exchange, because a heat exchange softening water does not reach the temperature needing deoxygenation, so set up an interchanger.After following oil by two tops and softening water interchanger heats, softening water is warming up to 104 degrees centigrade, and a part becomes steam condition, and oxygen therefrom spins off.Former deoxygenator heating steam line retains to stop using saves steam, uses when being out of order in order to interchanger.
Fractionation tower top turning oil of the present invention and softening water heat exchange produce deaerated water technique compared with the prior art, have following remarkable advantage:
Reallocate resources, improve resource utilization: utilize the heat of fractionation tower top turning oil to be heated to about 104 DEG C to softening water, enter deoxygenator thus remove O in softening water
2component, and the temperature reducing fractionation tower top turning oil.No longer need to pass into steam heating in deoxygenator on the one hand, decrease steam consumption, reduce plant energy consumption, on the other hand top turning oil and softening water heat exchange, reduce top turning oil and return tower temperature, disengage heat in tower, ensure tower top heat balance.
Four, accompanying drawing explanation
Fig. 1 is the structural representation that deaerated water technique is produced in fractionation tower top turning oil and softening water heat exchange.Reference numeral: 1 coking fractional distillation column 2 pressure pump 3 oil-in 4 oil outlet 5 interchanger 6 water-in 7 input channel 8 deoxygenator 9 steam inlet 10 deaerated water outlet
Five, embodiment
Below in conjunction with Figure of description, deaerated water technique is produced to fractionation tower top turning oil of the present invention and softening water heat exchange and does following further description:
As shown in Figure 1, fractionation tower top turning oil of the present invention and softening water heat exchange are produced deaerated water technique scission reaction in coking fractional distillation column 1 and are exported top turning oil up to 180 ~ 190 DEG C, by oil outlet 4 input heat exchanger 5 under the effect of pressure pump 2, now softening water enters pipeline 6 also through interchanger 5 by softening, recirculated water cooling tube side will be pushed up and shell side exchanges, heat exchanger tube pass medium is replaced by top turning oil by original recirculated water, both temperature are exchanged, top turning oil after cooling is by oil-in 3 defeated times coking fractional distillation columns 1, and the softening water up to about 104 ° enters deoxygenator 8 by input channel 7, remove water oxygen gas and become deaerated water by deaerated water outlet 10 discharge, former deoxygenator heating steam import 9 retains for subsequent use.
Except the technical characteristic described in specification sheets, be the known technology of those skilled in the art.
Claims (2)
1. deaerated water technique is produced in a fractionation tower top turning oil and softening water heat exchange, comprise the outlet of coking fractional distillation column, pressure pump, oil-in, oil outlet, interchanger, water-in, input channel, deoxygenator, steam inlet and deaerated water, it is characterized in that between coking fractional distillation column with deoxygenator, 2 interchanger being installed and being connected with pipeline, utilize the heat of fractionation tower top turning oil to be heated to about 104 DEG C to softening water, enter deoxygenator thus remove O in softening water
2component, becomes deaerated water by softening water, and reduces the temperature of fractionation tower top turning oil.
2. interchanger according to claim 1, it is characterized in that top recirculated water cooling tube side and shell side to exchange, heat exchanger tube pass medium is replaced by top turning oil by original recirculated water, and both temperature are exchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144655.0A CN104828892A (en) | 2015-03-31 | 2015-03-31 | Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144655.0A CN104828892A (en) | 2015-03-31 | 2015-03-31 | Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104828892A true CN104828892A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510144655.0A Pending CN104828892A (en) | 2015-03-31 | 2015-03-31 | Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water |
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| CN (1) | CN104828892A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048446A (en) * | 1990-07-31 | 1991-01-09 | 林承方 | The thermodynamic deoxidizing method of hot-water boiler and device |
| CN1368535A (en) * | 2002-01-12 | 2002-09-11 | 中国石油化工股份有限公司长岭分公司 | Process for preventing coking in catalytic equipment and oil slurry system of fractionating tower |
| CN102506413A (en) * | 2011-10-09 | 2012-06-20 | 中国石油化工股份有限公司 | Desalted water high-pressure oxygen removing system and method capable of utilizing low-temperature heat of catalytic cracking device |
| CN203935635U (en) * | 2014-06-19 | 2014-11-12 | 山东神驰石化有限公司 | A kind of weight-removing column heater |
| CN204039339U (en) * | 2014-04-04 | 2014-12-24 | 正和集团股份有限公司 | A kind of system of tower top Xun ring washing desalination |
-
2015
- 2015-03-31 CN CN201510144655.0A patent/CN104828892A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048446A (en) * | 1990-07-31 | 1991-01-09 | 林承方 | The thermodynamic deoxidizing method of hot-water boiler and device |
| CN1368535A (en) * | 2002-01-12 | 2002-09-11 | 中国石油化工股份有限公司长岭分公司 | Process for preventing coking in catalytic equipment and oil slurry system of fractionating tower |
| CN102506413A (en) * | 2011-10-09 | 2012-06-20 | 中国石油化工股份有限公司 | Desalted water high-pressure oxygen removing system and method capable of utilizing low-temperature heat of catalytic cracking device |
| CN204039339U (en) * | 2014-04-04 | 2014-12-24 | 正和集团股份有限公司 | A kind of system of tower top Xun ring washing desalination |
| CN203935635U (en) * | 2014-06-19 | 2014-11-12 | 山东神驰石化有限公司 | A kind of weight-removing column heater |
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Application publication date: 20150812 |
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| WD01 | Invention patent application deemed withdrawn after publication |