CN102659510A - Method for starting alcohol-alkylation system after temperature drop and pressure relief - Google Patents
Method for starting alcohol-alkylation system after temperature drop and pressure relief Download PDFInfo
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- CN102659510A CN102659510A CN2012101345611A CN201210134561A CN102659510A CN 102659510 A CN102659510 A CN 102659510A CN 2012101345611 A CN2012101345611 A CN 2012101345611A CN 201210134561 A CN201210134561 A CN 201210134561A CN 102659510 A CN102659510 A CN 102659510A
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- alkylation system
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Abstract
The invention discloses a method for starting an alcohol-alkylation system after temperature drop and pressure relief. The method comprises the following steps of guiding six-stage refined gas into the alcohol-alkylation system, increasing the pressure in the alcohol-alkylation system to between 4.0 and 6.0Mpa, starting a circulator for major cycle, heating an alcohol-hydrocarbon tower at the same time, and completing the starting of the alcohol-alkylation system when the temperature of the alcohol-hydrocarbon tower rises to the set temperature. The method is simple, easy to operate and short in starting time. Because hydrogen is not 'eaten' in the heating process of the six-stage refined gas, the emptying quantity of material gas is greatly reduced; and moreover, the starting time of a high pressure engine is also postponed, so the power consumption is lowered, and the effect of getting twice the result with half the effort is really achieved in production practice.
Description
Technical field
The present invention relates to the synthetic ammonia technical field, be specifically related to the starting method after the cooling release of a kind of alcohol-hydrocarbon system.
Background technology
The alcohol-hydrocarbon system is a considerable system in the synthesis ammonia system, and its starting method is divided into generally that alcoholization system is driven and the driving of hydrocarbonylation system, and general step is: whether the installation of check system equipment, pipeline and all electrical equipment, instrument be intact; Pipeline blows down then, system displacement finishes, and gas-tightness test, in system, mends qualified virgin gas again, is pressurized to 5.0MPa; The adjustment valve starts circulator, when internal circulating load reach a certain amount of after; Open electric furnace and heat up, speed is 40 ℃/h, boiling water cooler when the water-cooled gas outlet temperature reaches 30～40 ℃; After the catalyst layer focus reaches requirement; Slowly tonifying Qi is boosted, and reduces furnace power, and pressure-raising speed is 2.0～3.0MPa/h.Turn down circulator shortcut valve in good time, increase internal circulating load, drive interlayer cold shock valve; Also drive zero rice cold shock valve in case of necessity; The catalyst layer temperature is controlled in the technic index, when system pressure rises to 12.0～13.5MPa, behind alcohol back gas CO and the hydrocarbon in the gas trace up to standard after; Can incorporate system into production system, produce by normal running rules tissue.This starting method is very necessary when original driving; If the driving after the cooling release of alcohol-hydrocarbon system is in process of production still driven by this step, just seem that trouble is loaded down with trivial details; Also can cause a large amount of wastes of virgin gas and energy consumption, be very much inadvisable.
Summary of the invention
The purpose of this invention is to provide the starting method after the cooling release of a kind of alcohol-hydrocarbon system easy and simple to handle.
In order to realize above purpose; The technical scheme that the present invention adopted is: the starting method after the cooling release of a kind of alcohol-hydrocarbon system may further comprise the steps: six sections fine gas are introduced the alcohol-hydrocarbon systems, make said alcohol-hydrocarbon system pressurising to 4.0～6.0Mpa; Start the circulator systemic circulation then; Alcohol hydrocarbon tower heats up simultaneously, and behind the said pure hydrocarbon tower temperature appreciation design temperature, the alcohol-hydrocarbon system drives to finish.Can incorporate the alcohol-hydrocarbon system into production system this moment, produces by normal running rules tissue.
Starting method after the cooling release of alcohol-hydrocarbon provided by the invention system is simple, operation easily, and required time is short.Owing in six sections fine gas temperature-rise periods of usefulness " not eating hydrogen ", can significantly reduce the emptying amount of virgin gas, also postponed the driving time of high-pressure unit in addition, saved power consumption, in production practice, can reach the effect of getting twice the result with half the effort.
Embodiment
Through specific embodiment technical scheme of the present invention is elaborated below.
Embodiment 1
Present embodiment provides the starting method after the cooling release of a kind of alcohol-hydrocarbon system; May further comprise the steps: six sections fine gas are introduced the alcohol-hydrocarbon system; Make the pressurising of said alcohol-hydrocarbon system to 6.0Mpa, start the circulator systemic circulation then, pure hydrocarbon tower heats up simultaneously; Behind the said pure hydrocarbon tower temperature appreciation design temperature, the alcohol-hydrocarbon system drives to finish.Can incorporate the alcohol-hydrocarbon system into production system this moment, produces by normal running rules tissue.
Embodiment 2
Present embodiment provides the starting method after the cooling release of a kind of alcohol-hydrocarbon system; May further comprise the steps: six sections fine gas are introduced the alcohol-hydrocarbon system; Make the pressurising of said alcohol-hydrocarbon system to 4.0Mpa, start the circulator systemic circulation then, pure hydrocarbon tower heats up simultaneously; Behind the said pure hydrocarbon tower temperature appreciation design temperature, the alcohol-hydrocarbon system drives to finish.Can incorporate the alcohol-hydrocarbon system into production system this moment, produces by normal running rules tissue.
Starting method after the alcohol-hydrocarbon system cooling release that the embodiment of the invention provides is simple, operation easily, and required time is short.Owing in six sections fine gas temperature-rise periods of usefulness " not eating hydrogen ", can significantly reduce the emptying amount of virgin gas, also postponed the driving time of high-pressure unit in addition, saved power consumption, in production practice, can reach the effect of getting twice the result with half the effort.
Claims (1)
1. the starting method after the alcohol-hydrocarbon system cooling release; It is characterized in that, may further comprise the steps: six sections fine gas are introduced the alcohol-hydrocarbon systems, make said alcohol-hydrocarbon system pressurising to 4.0～6.0Mpa; Start the circulator systemic circulation then; Alcohol hydrocarbon tower heats up simultaneously, and behind the said pure hydrocarbon tower temperature appreciation design temperature, the alcohol-hydrocarbon system drives to finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101345611A CN102659510A (en) | 2012-05-03 | 2012-05-03 | Method for starting alcohol-alkylation system after temperature drop and pressure relief |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101345611A CN102659510A (en) | 2012-05-03 | 2012-05-03 | Method for starting alcohol-alkylation system after temperature drop and pressure relief |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102659510A true CN102659510A (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012101345611A Pending CN102659510A (en) | 2012-05-03 | 2012-05-03 | Method for starting alcohol-alkylation system after temperature drop and pressure relief |
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| CN (1) | CN102659510A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551083A (en) * | 2013-10-30 | 2014-02-05 | 天津市化工设计院 | Operating method for linkage operation of n-butane oxidation main device and tail gas incineration auxiliary device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06124525A (en) * | 1992-10-08 | 1994-05-06 | Konica Corp | Magneto-optical disk drive device |
| CN101684062A (en) * | 2008-09-25 | 2010-03-31 | 江苏劲力化肥有限责任公司 | New purification method of alcohol hydrocarbylation process |
-
2012
- 2012-05-03 CN CN2012101345611A patent/CN102659510A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06124525A (en) * | 1992-10-08 | 1994-05-06 | Konica Corp | Magneto-optical disk drive device |
| CN101684062A (en) * | 2008-09-25 | 2010-03-31 | 江苏劲力化肥有限责任公司 | New purification method of alcohol hydrocarbylation process |
Non-Patent Citations (2)
| Title |
|---|
| 郝建成: "18万t/a 氨醇系统年度大检修结合改造成效显著", 《煤化工》, no. 141, 30 April 2009 (2009-04-30) * |
| 郝建成等: "180 kt/ a 氨联醇生产装置原始开车小结", 《中氮肥》, no. 2, 31 March 2007 (2007-03-31), pages 16 - 17 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551083A (en) * | 2013-10-30 | 2014-02-05 | 天津市化工设计院 | Operating method for linkage operation of n-butane oxidation main device and tail gas incineration auxiliary device |
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Application publication date: 20120912 |