CN102796580A - Method for stabilizing liquid mixed hydrocarbon - Google Patents
Method for stabilizing liquid mixed hydrocarbon Download PDFInfo
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- CN102796580A CN102796580A CN2012103095184A CN201210309518A CN102796580A CN 102796580 A CN102796580 A CN 102796580A CN 2012103095184 A CN2012103095184 A CN 2012103095184A CN 201210309518 A CN201210309518 A CN 201210309518A CN 102796580 A CN102796580 A CN 102796580A
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- liquefied petroleum
- hydrocarbon
- petroleum gas
- mixed hydrocarbon
- mix
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Abstract
The invention relates to a method for stabilizing liquid mixed hydrocarbon. The method comprises the following steps: a, leading the liquid mixed hydrocarbon into a mixed hydrocarbon storage tank buried underground and heating, wherein the temperature is controlled to be 45 to 48 DEG C; b, conveying part of liquefied petroleum gas generated by flash evaporation along with the increasing temperature of the liquid mixed hydrocarbon into a liquefied petroleum gas compressor, pressurizing to 2.2 MPa and conveying the compressed liquefied petroleum gas into a liquefied petroleum gas tank vehicle for export; and c, detecting the saturated steam pressure of the mixed hydrocarbon, wherein if the saturated steam pressure of the mixed hydrocarbon is less than 5 kPa, the requirement of stabilizing the liquid mixed hydrocarbon can be met. The method has the following advantages that 1, the liquefied petroleum gas of the mixed hydrocarbon can be recycled to the maximum degree, so energy source is effectively utilized and the potential safety hazard of the liquefied petroleum gas is eliminated; 2, the flow is simple and equipment is cheap and convenient and practical to operate; and 3, the whole flow completely utilizes the pressure drop of the system and the energy consumption is low.
Description
Technical field:
The present invention relates to the petroleum and natural gas production field, particularly relate to the method that a kind of stable liquid state is mixed hydrocarbon.
Background technology:
If the Sweet natural gas tolerance in the stabilization of crude oil production process is less; Be not suitable for rectifying device, because of it is rich in the composition more than the C3, the temperature and pressure split requirement has certain nargin; The variation of the composition of gas own and season are to temperature effect in addition; Make the liquid state that reclaims mix hydrocarbon and can dissolve in the partial liquefaction petroleum gas, cause the saturated vapor pressure of mixed hydrocarbon too high, jeopardize the safety of mixing the hydrocarbon accumulating.For eliminating consequent safety-problems, the general user will mix the gas phase row mouth of hydrocarbon storage tank or canning cart and open, and part gas phase petroleum gas is discharged in the air, not only cause the waste of the energy, and pollute environment.
Summary of the invention:
The object of the invention is exactly that the liquid hydrocarbon amount of mixing is too big because of LPG liquefied petroleum gas dissolves in for effective solution; The problem that causes the liquid saturated vapor pressure that mixes hydrocarbon to be leapt high; A kind of stable liquid state that provides is mixed the method for hydrocarbon, and this method not only can effectively be eliminated the pressure that causes because of the LPG liquefied petroleum gas flash distillation and raise, and can reclaim this partial liquefaction petroleum gas; Both reduce the pressure of hydrocarbon jar, reclaimed fuel again.
The technical scheme that the present invention adopts is:
A kind of stable liquid state is mixed the method for hydrocarbon, it is characterized in that may further comprise the steps:
A, liquid state is mixed hydrocarbon at first import and be embedded in subterranean mixed hydrocarbon storage tank and heat, heating and temperature control is between 45～48 ℃;
B, mix the rising of hydrocarbon temperature along with liquid state; The LPG liquefied petroleum gas that the part flash distillation is come out is sent into the liquefied petroleum air compressor through gas exhaust duct; The LPG liquefied petroleum gas gas boosting of the 0～0.3MPa that will flash off through the liquefied petroleum air compressor is to 2.2MPa, and the LPG liquefied petroleum gas after the compression is sent into the liquefied petroleum gas tank vehicle outward transport;
C, flash off partial liquefaction petroleum gas after, detect to mix the hydrocarbon saturated vapor pressure less than 50kPa, can satisfy stable liquid state and mix the hydrocarbon requirement.
Said mixed hydrocarbon storage tank is selected water jacket furnace or hot water boiler heating for use, guarantees that the ratio of heating power and heating-surface area is not more than 15 kilowatts/square metre.
The present invention compared with prior art has following advantage:
1, farthest reclaim to mix LPG liquefied petroleum gas in the hydrocarbon, effective use of energy sources not only, and eliminated it and have the potential safety hazard that produces;
2, flow process is simple, cheap device, and easy to operate;
3, whole flow process has made full use of system self pressure drop, and energy consumption own is lower;
4, typical use: be used for small-scale mixed hydrocarbon treatment station.
Embodiment:
A kind of liquid stable provided by the invention mixes the method for hydrocarbon, may further comprise the steps:
A, liquid state is mixed hydrocarbon at first import and be embedded in subterranean mixed hydrocarbon storage tank and heat; Said mixed hydrocarbon storage tank is 50 cubes; Liquid mixed hydrocarbon filling ratio is 0.85, and said mixed hydrocarbon storage tank is selected water jacket furnace or hot water boiler heating for use, guarantees that the ratio of heating power and heating-surface area is not more than 15 kilowatts/square metre; Heating and temperature control is between 45～48 ℃, and the time that is heated to specified temperature generally was controlled between 6～8 hours;
B, mix the rising of hydrocarbon temperature along with liquid state; The LPG liquefied petroleum gas that the part flash distillation is come out is sent into the liquefied petroleum air compressor through gas exhaust duct; The LPG liquefied petroleum gas gas boosting of the 0～0.3MPa that will flash off through the liquefied petroleum air compressor is to 2.2MPa; The stage separation thing refluxes through self pressure drop and into mixes the hydrocarbon storage tank, and the LPG liquefied petroleum gas after the compression is sent into the liquefied petroleum gas tank vehicle outward transport;
C, flash off partial liquefaction petroleum gas after, detect to mix the hydrocarbon saturated vapor pressure less than 50kPa, can satisfy stable liquid state and mix the hydrocarbon requirement, be the liquid hydrocarbon that mixes of fine.
Claims (2)
1. stablize liquid method of mixing hydrocarbon for one kind, it is characterized in that may further comprise the steps:
A, liquid state is mixed hydrocarbon at first import and be embedded in subterranean mixed hydrocarbon storage tank and heat, heating and temperature control is between 45～48 ℃;
B, mix the rising of hydrocarbon temperature along with liquid state; The LPG liquefied petroleum gas that the part flash distillation is come out is sent into the liquefied petroleum air compressor through gas exhaust duct; The LPG liquefied petroleum gas gas boosting of the 0～0.3MPa that will flash off through the liquefied petroleum air compressor is to 2.2MPa, and the LPG liquefied petroleum gas after the compression is sent into the liquefied petroleum gas tank vehicle outward transport;
C, flash off partial liquefaction petroleum gas after, detect to mix the hydrocarbon saturated vapor pressure less than 50kPa, can satisfy stable liquid state and mix the hydrocarbon requirement.
2. a kind of stable liquid state according to claim 1 is mixed the method for hydrocarbon, it is characterized in that: mix the hydrocarbon storage tank and select water jacket furnace or hot water boiler heating for use, guarantee that the ratio of heating power and heating-surface area is not more than 15 kilowatts/square metre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103095184A CN102796580A (en) | 2012-08-28 | 2012-08-28 | Method for stabilizing liquid mixed hydrocarbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103095184A CN102796580A (en) | 2012-08-28 | 2012-08-28 | Method for stabilizing liquid mixed hydrocarbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102796580A true CN102796580A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103095184A Pending CN102796580A (en) | 2012-08-28 | 2012-08-28 | Method for stabilizing liquid mixed hydrocarbon |
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| CN (1) | CN102796580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762833A (en) * | 2020-07-01 | 2020-10-13 | 森诺科技有限公司 | VOC (volatile organic compound) reduction gasification device for open pond sump oil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101027528A (en) * | 2004-09-14 | 2007-08-29 | 埃克森美孚上游研究公司 | Method of extracting ethane from liquefied natural gas |
| CN101120219A (en) * | 2005-02-17 | 2008-02-06 | 国际壳牌研究有限公司 | Plant and method for liquefying natural gas |
| CN101205484A (en) * | 2007-11-27 | 2008-06-25 | 中国海洋石油总公司 | Three-in-one stable treatment technique for crude oil |
-
2012
- 2012-08-28 CN CN2012103095184A patent/CN102796580A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101027528A (en) * | 2004-09-14 | 2007-08-29 | 埃克森美孚上游研究公司 | Method of extracting ethane from liquefied natural gas |
| CN101120219A (en) * | 2005-02-17 | 2008-02-06 | 国际壳牌研究有限公司 | Plant and method for liquefying natural gas |
| CN101205484A (en) * | 2007-11-27 | 2008-06-25 | 中国海洋石油总公司 | Three-in-one stable treatment technique for crude oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762833A (en) * | 2020-07-01 | 2020-10-13 | 森诺科技有限公司 | VOC (volatile organic compound) reduction gasification device for open pond sump oil |
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Application publication date: 20121128 |