CN105334124A - Device for double-layer cooling detection of mercaptan in petroleum - Google Patents
Device for double-layer cooling detection of mercaptan in petroleum Download PDFInfo
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- CN105334124A CN105334124A CN201410384964.0A CN201410384964A CN105334124A CN 105334124 A CN105334124 A CN 105334124A CN 201410384964 A CN201410384964 A CN 201410384964A CN 105334124 A CN105334124 A CN 105334124A
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Abstract
The invention discloses device for double-layer cooling detection of mercaptan in petroleum. The device is characterized in that a heater (1) delivers gas to a petroleum collecting tank (2) through a pipeline; the upper end of the petroleum collecting tank (2) is connected to a first-stage condenser (3) through a gas pipe; the first-stage condenser (3) is connected with the second-stage condenser (6) through a pipeline; the second-stage condenser (6) is connected with a detector (10) through a gas pipeline; a filter net is arranged in a first-stage reactor (8) in the detector (10); the lower end of the filter net is provided with a gravity sensor; and the gravity sensor is connected by a controller (7). The petroleum gas is subjected to twice condensation and double-layer cooling to improve the accuracy of the post detection. Mercaptan and heavy metal ions react to produce precipitates, the weight of the precipitates is sensed by the gravity sensor, and a signal is transmitted to the controller, so as to detect the amount of mercaptan according to the weight of the precipitates. The device has the advantages of detection stability, high selectivity and high sensitivity.
Description
Technical field
The invention belongs to oil detection technique field, be specifically related to the equipment that double-deck cooling detects mercaptan in oil.
Background technology
In petroleum refining process, usually containing sulfuretted hydrogen, cos and mercaptan sulfides in the liquefied petroleum gas (LPG) that catalytic cracking obtains, mercaptan not only has stench, and be a kind of active sulphur, certain pollution can be caused to environment on the one hand if do not removed, on the other hand impact greatly being produced on following process process.Therefore to removing the catalytic liquefaction gas after sulfuretted hydrogen, need to carry out removal of mercaptans process further, to remove mercaptan wherein.In prior art in removal of mercaptans process, as adopted traditional tower as the mass transfer apparatus of sodium hydroxide solution and catalytic liquefied petroleum gas, because its mass-transfer efficiency is not enough, easily cause that Mercaptan removal rate is not good, product mercaptan sulfur content excessive problem.
Sulfur alcohol compound is common class air pollutants, is the class non-aromatic component comprising mercapto functional group (-SH).Tert-butyl mercaptan, as one of them, has hypertoxicity, pungency and carcinogenicity, havoc environmental and human health impacts.Therefore, the method developing tert-butyl mercaptan content in sensitive, quick, Accurate Determining air is very important.
Therefore, how to produce the equipment that double-deck cooling detects mercaptan in oil, can the content of mercaptan in sensitive, quick, Accurate Determining oil, have important practical significance.
Summary of the invention
For the deficiencies in the prior art, double-deck cooling is the object of the present invention is to provide to detect the equipment of mercaptan in oil, can the content of mercaptan in sensitive, quick, Accurate Determining oil.
The technical scheme that the present invention takes is:
Double-deck cooling detects the equipment of mercaptan in oil, it is characterized in that, oil is connected with well heater (1) by pipeline, well heater (1) delivers gas in oil holding tank (2) by pipeline, the upper end of oil holding tank (2) connects first-stage condenser (3) by gas pipeline, first-stage condenser (3) is connected with secondary condenser (6) by pipeline, secondary condenser (6) is by gas pipeline connection detector (10), A reactor (8) and second reactor (9) is provided with in described detecting device (10), the two is communicated with successively, A reactor (8) inside is provided with screen pack, screen pack lower end is provided with gravity sensor, gravity sensitive is connected by controller (7).
Further, the lateral wall of described first-stage condenser (3) and secondary condenser (6) is respectively arranged with condensation pipe, and condensation pipe is recycled in intercepting basin (4) by liquid pump.
Further, the liquid deposited in described intercepting basin (4) is the aqueous solution of the freon containing 3-5%.
Further, the mesh fineness of described screen pack is less than 25 μm.
Further, described controller (7) is provided with display screen and gauge tap.
Further, place in described A reactor (8) in copper sulphate, nickelous sulfate, chromium chloride solution any one.
Further, NaOH or potassium hydroxide solution is placed in described second reactor (9).
Beneficial effect of the present invention is:
By well heater, oil is become gas in the present invention, gas is carried out condensation by secondary condenser, lower boiling impurity in petroleum gas is cooled to liquid, the skin of condenser is provided with flowing coating of cooling liquid, liquid coolant is recycled in intercepting basin by liquid pump, carry out bilayer cooling, improve the accuracy rate of late detection, there is the advantages such as structure is simple, low cost of manufacture.
A reactor and second reactor is provided with in detecting device, A reactor inside is provided with screen pack, screen pack lower end is provided with gravity sensor, gravity sensitive is connected by controller, and the mercaptan in petroleum gas easily reacts with heavy metal ion, generates precipitation, the weight of precipitation is responded to through gravity sensor, signal is sent in controller, can detect the amount of mercaptan according to Sediment weight, has and detects stability and the advantage such as high selectivity and high sensitivity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1, well heater; 2, oil holding tank; 3, first-stage condenser; 4, intercepting basin; 5, gravity sensor; 6, secondary condenser; 7, controller; 8, A reactor; 9, second reactor; 10, detecting device.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing 1.
Embodiment 1
Double-deck cooling detects the equipment of mercaptan in oil, it is characterized in that, oil is connected with well heater 1 by pipeline, petroleum liquid is heated to be gaseous state by well heater 1, deliver gas in oil holding tank 2 by pipeline, the upper end of oil holding tank 2 connects first-stage condenser 3 by gas pipeline, carry out preliminary condensation, first-stage condenser 3 is connected with secondary condenser 6 by pipeline, the lateral wall of described first-stage condenser 3 and secondary condenser 6 is respectively arranged with condensation pipe, condensation pipe is recycled in intercepting basin 4 by liquid pump, the liquid deposited in intercepting basin 4 is the aqueous solution of the freon containing 3-5%, secondary condenser 6 is by gas pipeline connection detector 10, A reactor 8 and second reactor 9 is provided with in described detecting device 10, copper-bath is placed in A reactor 8, mercaptan in petroleum gas and copper sulphate reaction generate precipitation, NaOH or potassium hydroxide solution is placed in second reactor 9, the two is communicated with successively, A reactor 8 inside is provided with screen pack, the mesh fineness of screen pack is less than 25 μm, screen pack lower end is provided with gravity sensor, gravity sensitive is connected by controller 7, controller 7 is provided with display screen and gauge tap, precipitation is by after gravity sensor reading, numerical value is imported into the display screen on controller 7, thus calculate, thiol component in oil, in petroleum gas, undetected mercaptan and other acid ingredients flow in second reactor 9, react with sodium hydroxide solution, further dissolving, play environment protecting.
Embodiment 2
Double-deck cooling detects the equipment of mercaptan in oil, it is characterized in that, oil is connected with well heater 1 by pipeline, petroleum liquid is heated to be gaseous state by well heater 1, deliver gas in oil holding tank 2 by pipeline, the upper end of oil holding tank 2 connects first-stage condenser 3 by gas pipeline, carry out preliminary condensation, first-stage condenser 3 is connected with secondary condenser 6 by pipeline, the lateral wall of described first-stage condenser 3 and secondary condenser 6 is respectively arranged with condensation pipe, condensation pipe is recycled in intercepting basin 4 by liquid pump, the liquid deposited in intercepting basin 4 is the aqueous solution of the freon containing 3-5%, secondary condenser 6 is by gas pipeline connection detector 10, A reactor 8 and second reactor 9 is provided with in described detecting device 10, chromium chloride solution is placed in A reactor 8, mercaptan in petroleum gas and copper sulphate reaction generate precipitation, NaOH or potassium hydroxide solution is placed in second reactor 9, the two is communicated with successively, A reactor 8 inside is provided with screen pack, the mesh fineness of screen pack is less than 25 μm, screen pack lower end is provided with gravity sensor, gravity sensitive is connected by controller 7, controller 7 is provided with display screen and gauge tap, precipitation is by after gravity sensor reading, numerical value is imported into the display screen on controller 7, thus calculate, thiol component in oil, in petroleum gas, undetected mercaptan and other acid ingredients flow in second reactor 9, react with potassium hydroxide solution, further dissolving, play environment protecting.
Claims (7)
1. double-deck cooling detects the equipment of mercaptan in oil, it is characterized in that, oil is connected with well heater (1) by pipeline, well heater (1) delivers gas in oil holding tank (2) by pipeline, the upper end of oil holding tank (2) connects first-stage condenser (3) by gas pipeline, first-stage condenser (3) is connected with secondary condenser (6) by pipeline, secondary condenser (6) is by gas pipeline connection detector (10), A reactor (8) and second reactor (9) is provided with in described detecting device (10), the two is communicated with successively, A reactor (8) inside is provided with screen pack, screen pack lower end is provided with gravity sensor, gravity sensitive is connected by controller (7).
2. double-deck cooling detects the equipment of sulfocompound in oil according to claim 1, it is characterized in that, the lateral wall of described first-stage condenser (3) and secondary condenser (6) is respectively arranged with condensation pipe, and condensation pipe is recycled in intercepting basin (4) by liquid pump.
3. double-deck cooling detects the equipment of sulfocompound in oil according to claim 2, and it is characterized in that, the liquid deposited in described intercepting basin (4) is the aqueous solution of the freon containing 3-5%.
4. double-deck cooling detects the equipment of sulfocompound in oil according to claim 1, and it is characterized in that, the mesh fineness of described screen pack is less than 25 μm.
5. double-deck cooling detects the equipment of sulfocompound in oil according to claim 1, and it is characterized in that, (7) are provided with display screen and gauge tap with described controller.
6. double-deck cooling detects the equipment of sulfocompound in oil according to claim 1, it is characterized in that, places any one in copper sulphate or chromium chloride solution in described A reactor (8).
7. double-deck cooling detects the equipment of sulfocompound in oil according to claim 1, it is characterized in that, places NaOH or potassium hydroxide solution in described second reactor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384964.0A CN105334124A (en) | 2014-08-07 | 2014-08-07 | Device for double-layer cooling detection of mercaptan in petroleum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384964.0A CN105334124A (en) | 2014-08-07 | 2014-08-07 | Device for double-layer cooling detection of mercaptan in petroleum |
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| Publication Number | Publication Date |
|---|---|
| CN105334124A true CN105334124A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410384964.0A Pending CN105334124A (en) | 2014-08-07 | 2014-08-07 | Device for double-layer cooling detection of mercaptan in petroleum |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501255A (en) * | 2019-09-04 | 2019-11-26 | 山西工程技术学院 | Coal dust content monitor control system and its working method during coal bed gas well mining |
| CN113717783A (en) * | 2021-08-30 | 2021-11-30 | 安徽金德润滑科技有限公司 | Integrated process for detecting and treating crude oil impurities of lubricating oil |
-
2014
- 2014-08-07 CN CN201410384964.0A patent/CN105334124A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501255A (en) * | 2019-09-04 | 2019-11-26 | 山西工程技术学院 | Coal dust content monitor control system and its working method during coal bed gas well mining |
| CN113717783A (en) * | 2021-08-30 | 2021-11-30 | 安徽金德润滑科技有限公司 | Integrated process for detecting and treating crude oil impurities of lubricating oil |
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Application publication date: 20160217 |