CN104297425A - Method for measuring content of regeneration oxygen by continuous catalytic reforming unit - Google Patents
Method for measuring content of regeneration oxygen by continuous catalytic reforming unit Download PDFInfo
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- CN104297425A CN104297425A CN201410500992.4A CN201410500992A CN104297425A CN 104297425 A CN104297425 A CN 104297425A CN 201410500992 A CN201410500992 A CN 201410500992A CN 104297425 A CN104297425 A CN 104297425A
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Abstract
The invention discloses a method for measuring the content of regeneration oxygen by a continuous catalytic reforming unit, relating to the technical field of instrument measurement of petrochemical engineering industry. The method comprises the following steps: sequentially feeding gas in a main pipeline (4) into dechlorination tanks, a filter (9) and a measurement tank (13) through a sampling pipeline, then analyzing the gas in the measurement tank by virtue of an analyzer (12). Two dechlorination tanks are connected in parallel; one dechlorination tank is used, and the other dechlorination tank is standby; the measurement efficiency is greatly improved; the on-line continuous measurement of the content of the regeneration oxygen by the reforming unit is effectively achieved; and the continuous catalytic reforming unit is simple in structure, convenient to operate and suitable for large-scale popularization and application.
Description
[technical field]
The present invention relates to petroleum chemical industry instrument measurement technical field, be specifically related to a kind of measuring method of continuous catalytic reforming device regeneration gas oxygen content.
[background technology]
Known, when the measurement to continuous catalytic reforming device regeneration gas oxygen content, due to the singularity of this device technique, usual needs adopt external meter specially to measure, but it is large to there is investment in this instrument, and measure complicated, the problems such as instrument is safeguarded and verification operation difficulty is larger, so how provide a kind of structure simple, invest the long-term technology demand that the little and measuring method that can meet measurement needs has just become those skilled in the art.
[summary of the invention]
In order to overcome the deficiency of above-mentioned technology, the invention provides a kind of measuring method of continuous catalytic reforming device regeneration gas oxygen content, the present invention is by sending into dechlorination tank, filtrator and measurement tank by the gas in main pipeline successively by sampling conduit, then with analyser, the gas measured in tank is analyzed, achieve and the on-line continuous of reformer regeneration gas oxygen content is measured, the features such as structure of the present invention is simple, easy to operate.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A kind of measuring method of continuous catalytic reforming device regeneration gas oxygen content, first sample gas to be incorporated in the dechlorination tank A measuring system by sampling pipeline by described measuring method from main pipeline, sample gas sloughs the chlorion in sample gas by dechlorination tank A, then the sample gas sloughing chlorion enters measurement tank successively by sampling pipeline after filter and reduction valve, then analyze the oxygen content in sample gas by the analyser be arranged on measurement tank, measure the interior gas discharging after measuring of tank to technique low-pressure line or direct emptying.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, described measuring system comprises dechlorination tank A, filtrator, analyser and measurement tank, one end of described dechlorination tank A connects main pipeline by sampling conduit, the other end of described dechlorination tank A connects filtrator by sampling conduit, described filtrator is connected by sampling conduit measures tank, described measurement tank is provided with analyser and forms the system measuring continuous catalytic reforming device regeneration gas oxygen content.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, described analyser is general low form Zirconium oxide analyzer.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, the sampling conduit between described dechlorination tank A and main pipeline is provided with valve C.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, described filtrator and the sampling conduit measured between tank are provided with reduction valve.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, the sampling conduit between described measurement tank and reduction valve is provided with shunt conduit, and described shunt conduit connects valve G.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, described measurement tank connects valve E by sampling conduit.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, in parallelly on the sampling conduit between described filtrator with valve C is provided with dechlorination tank A and dechlorination tank B.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, the sampling conduit at described dechlorination tank A two ends is respectively equipped with valve A and valve B.
The measuring method of described continuous catalytic reforming device regeneration gas oxygen content, the sampling conduit at described dechlorination tank B two ends is respectively equipped with valve D and valve F.
Adopt technical scheme as above, the present invention has superiority as described below:
The measuring method of a kind of continuous catalytic reforming device regeneration gas oxygen content of the present invention, the present invention is by sending into dechlorination tank by the gas in main pipeline successively by sampling conduit, filtrator and measurement tank, then with analyser, the gas measured in tank is analyzed, the present invention is simultaneously by being arranged in parallel two dechlorination tanks, achieve two dechlorination tank a preparation and a use, substantially increase measurement efficiency, the present invention effectively achieves and measures the on-line continuous of reformer regeneration gas oxygen content, and structure of the present invention is simple, easy to operate, be applicable to large-scale promotion and application.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
In the drawings: 1, valve A; 2, dechlorination tank A; 3, valve B; 4, main pipeline; 5, valve C; 6, valve D; 7, dechlorination tank B; 8, valve E; 9, filtrator; 10, reduction valve; 11, valve F; 12, analyser; 13, tank is measured; 14, valve G.
[embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
The measuring method of a kind of continuous catalytic reforming device regeneration gas oxygen content of the present invention, first sample gas is incorporated in the dechlorination tank A2 measuring system by sampling pipeline by described measuring method from main pipeline 4, sample gas sloughs the chlorion in sample gas by dechlorination tank A2, then the sample gas sloughing chlorion is entered successively by sampling pipeline after filter 9 and reduction valve 10 measures tank 13, then the oxygen content in sample gas is analyzed by the analyser 12 be arranged on measurement tank 13, measure the interior gas discharging after measuring of tank 13 to technique low-pressure line or directly emptying.
Measuring system wherein described in the present invention by reference to the accompanying drawings 1, measuring system specifically comprises dechlorination tank A2, filtrator 9, analyser 12 and measurement tank 13, one end of described dechlorination tank A2 connects main pipeline 4 by sampling conduit, sampling conduit between described dechlorination tank A2 and main pipeline 4 is provided with valve C5, filtrator 9 is connected by sampling conduit at the other end of dechlorination tank A2, the present invention is in specific implementation process, in order to anti-locking system dechlorination tank A2 in operational process breaks down suddenly, cause unnecessary loss, or in use switch to realize two dechlorination tanks, after a dechlorination tank loses efficacy, sample autogenous cutting can be changed to another dechlorination tank, supply analysis instrument 12 is analyzed, in parallelly on sampling conduit between filtrator 9 with valve C5 can be provided with dechlorination tank A2 and dechlorination tank B7, the sampling conduit at described dechlorination tank A2 two ends is respectively equipped with valve A1 and valve B3, the sampling conduit at described dechlorination tank B7 two ends is respectively equipped with valve D6 and valve F11, further, sampling conduit between filtrator 9 and measurement tank 13 is provided with reduction valve 10, described filtrator 9 is connected by sampling conduit measures tank 13, described measurement tank 13 connects valve E8 by sampling conduit, described valve E8 is by sampling conduit Joining Technology low-pressure line or directly emptying, wherein the gas after measuring tank 13 inner analysis discharges by valve E8, sampling conduit between described measurement tank 13 and reduction valve 10 is provided with shunt conduit by threeway, described shunt conduit connects valve G14, described valve G14 is by sampling conduit Joining Technology low-pressure line or directly emptying, and chloride ion content in periodic sampling assay sample gas and other corrosive gas content, trouble-saving generation, described measurement tank 13 is provided with analyser 12, described analyser 12 is that general low form Zirconium oxide analyzer forms the system measuring continuous catalytic reforming device regeneration gas oxygen content.
By reference to the accompanying drawings 1, in order to improve measurement effect of the present invention, the present invention is in measuring process, sample gas is incorporated in the dechlorination tank A2 measuring system from main pipeline 4 by sampling pipeline, wherein the inlet of sample gas can be regulated by the valve C5 be arranged between main pipeline 4 and dechlorination tank A2 or block, further, sample gas enters valve B3 and the valve D6 of dechlorination tank A2 and the setting of dechlorination tank B7 front end respectively by shunting, if now need to pass into sample gas in dechlorination tank A2, then need to open valve B3, if need to pass into sample gas in dechlorination tank B7, then need to open valve D6, further, when valve B3 and valve D6 damages or lost efficacy, the function of valve B3 and valve D6 can be realized by the valve A1 and valve F11 being arranged on dechlorination tank A2 and dechlorination tank B7 rear end, further, the chlorion in sample gas is sloughed by dechlorination tank, then the sample gas sloughing chlorion is entered successively by sampling pipeline after filter 9 and reduction valve 10 measures tank 13, now when not needing to enter gas in measurement tank 13, valve G14 can be passed through by gas discharging to technique low-pressure line or directly emptying, now enter the gas of measuring tank 13 and analyze oxygen content in sample gas by being arranged on the analyser 12 measured on tank 13, the gas measured in tank 13 after measuring is discharged into technique low-pressure line or directly emptying through valve E8.
The present invention is in specific implementation process, in order to improve Detection results, pipelines all in the present invention and parts all will carry out tracing thermal-insulating, wherein tracing thermal-insulating can by (as measured tank) arranging insulating tube and heat-insulation layer respectively on sampling conduit and each parts, or it is medium that native system can also be all arranged on insulation can by tracing thermal-insulating, what needs were said is that the present invention is not limited to above-mentioned two kinds of heat preserving modes; Further, measure between tank 13 and valve E8 and the diameter of valve E8 other end sampling conduit should be greater than the sampling conduit entering and measures tank 13, wherein ratio is 3:1 is optimum; Further, filtrator 9 and the employing pipeline measured between tank 13 are stainless-steel tube, and the material measuring tank 13 is stainless steel; Further, the employing pipeline between main pipeline 4 and dechlorination tank A2 is fluid carbon steel pipe; Further, should be as far as possible short to measuring the sampling conduit of tank 13 from main pipeline 4, to reduce the delayed etc. of analysis; Middle filtrator 9 of the present invention and the sampling conduit measured between tank 13 and the material measuring tank 13 are stainless steel, and the material of the sampling conduit between main pipeline 4 and dechlorination tank A2 and dechlorination tank A2 is carbon steel.
The dechlorination tank A2 arranged in the present invention and dechlorination tank B7 is a preparation and a use; when one of them breaks down; directly for subsequent use operation can be continued by another in non-stop-machine situation; now pass through by-pass valve control; the dechlorination tank realized losing efficacy overhauls or changes; two dechlorination tanks of the present invention can in use switch simultaneously, sample autogenous cutting can be changed to another dechlorination tank, and analyzed to supply analyser 12 after a dechlorination tank loses efficacy.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.
Claims (10)
1. the measuring method of a continuous catalytic reforming device regeneration gas oxygen content, it is characterized in that: first sample gas is incorporated into the dechlorination tank A(2 measuring system by described measuring method from main pipeline (4) by sampling pipeline) in, sample gas is by dechlorination tank A(2) slough chlorion in sample gas, then the sample gas sloughing chlorion is entered successively by sampling pipeline after filter (9) and reduction valve (10) measures tank (13), then the oxygen content in sample gas is analyzed by the analyser (12) be arranged in measurement tank (13), measure the interior gas discharging after measuring of tank (13) to technique low-pressure line or directly emptying.
2. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 1, described measuring system comprises dechlorination tank A(2), filtrator (9), analyser (12) and measurement tank (13), it is characterized in that: described dechlorination tank A(2) one end connect main pipeline (4) by sampling conduit, described dechlorination tank A(2) the other end connect filtrator (9) by sampling conduit, described filtrator (9) is connected by sampling conduit measures tank (13), described measurement tank (13) is provided with analyser (12) and forms the system measuring continuous catalytic reforming device regeneration gas oxygen content.
3. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 2, is characterized in that: described analyser (12) is general low form Zirconium oxide analyzer.
4. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 2, is characterized in that: described dechlorination tank A(2) and main pipeline (4) between sampling conduit be provided with valve C(5).
5. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 2, is characterized in that: described filtrator (9) and the sampling conduit measured between tank (13) are provided with reduction valve (10).
6. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 2, is characterized in that: the sampling conduit between described measurement tank (13) and reduction valve (10) is provided with shunt conduit, and described shunt conduit connects valve G(14).
7. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 2, is characterized in that: described measurement tank (13) connects valve E(8 by sampling conduit).
8. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 2, is characterized in that: described filtrator (9) and valve C(5) between sampling conduit on be in parallelly provided with dechlorination tank A(2) and dechlorination tank B(7).
9. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 8, is characterized in that: described dechlorination tank A(2) sampling conduit at two ends is respectively equipped with valve A(1) and valve B(3).
10. the measuring method of continuous catalytic reforming device regeneration gas oxygen content according to claim 8, is characterized in that: described dechlorination tank B(7) sampling conduit at two ends is respectively equipped with valve D(6) and valve F(11).
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| CN201410500992.4A CN104297425B (en) | 2014-09-26 | 2014-09-26 | A kind of measuring method of continuous catalytic reforming device regeneration gas oxygen content |
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| CN201410500992.4A CN104297425B (en) | 2014-09-26 | 2014-09-26 | A kind of measuring method of continuous catalytic reforming device regeneration gas oxygen content |
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| CN104297425A true CN104297425A (en) | 2015-01-21 |
| CN104297425B CN104297425B (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045060A (en) * | 2018-01-17 | 2019-07-23 | 中昊晨光化工研究院有限公司 | A kind of oxygen content detecting system and tetrafluoroethene production system |
Citations (4)
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| CA1096197A (en) * | 1976-11-08 | 1981-02-24 | Donald A. Sayles | Apparatus for measuring excess oxygen or combustibles in a gaseous sample of a combustion process |
| CN1461675A (en) * | 2002-05-31 | 2003-12-17 | 中国石油化工股份有限公司 | Method for purifying circulated gas regenerated continuously by reforming catalyst |
| CN101551378A (en) * | 2008-12-30 | 2009-10-07 | 湖北宜化化工股份有限公司 | Method and equipment for detecting oxygen content in coal gas |
| CN101569830A (en) * | 2008-04-29 | 2009-11-04 | 中国石油化工股份有限公司 | Method for dechlorinating gas discharged from continuous reforming regenerator |
-
2014
- 2014-09-26 CN CN201410500992.4A patent/CN104297425B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1096197A (en) * | 1976-11-08 | 1981-02-24 | Donald A. Sayles | Apparatus for measuring excess oxygen or combustibles in a gaseous sample of a combustion process |
| CN1461675A (en) * | 2002-05-31 | 2003-12-17 | 中国石油化工股份有限公司 | Method for purifying circulated gas regenerated continuously by reforming catalyst |
| CN101569830A (en) * | 2008-04-29 | 2009-11-04 | 中国石油化工股份有限公司 | Method for dechlorinating gas discharged from continuous reforming regenerator |
| CN101551378A (en) * | 2008-12-30 | 2009-10-07 | 湖北宜化化工股份有限公司 | Method and equipment for detecting oxygen content in coal gas |
Non-Patent Citations (1)
| Title |
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| 孙自强 等: "连续催化重整再生器氧含量的软测量", 《自动化仪表》, vol. 24, no. 12, 31 December 2003 (2003-12-31), pages 17 - 19 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045060A (en) * | 2018-01-17 | 2019-07-23 | 中昊晨光化工研究院有限公司 | A kind of oxygen content detecting system and tetrafluoroethene production system |
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