DEP Shell Dehydration Unit

[oworowor]

Dear All,

I just want to share about dehydration unit Shell standard..

here is the link

[link Point to another website Only the registered members can access]
			

TABLE OF CONTENTS
1. INTRODUCTION .................................................. .................................................. ....5
1.1 SCOPE............................................. .................................................. ......................5
1.2 DISTRIBUTION, APPLICABILITY AND REGULATORY CONSIDERATIONS.........................5
1.3 DEFINITIONS .................................................. .................................................. ......5
1.4 SYMBOLS AND ABBREVIATIONS..................................... ..........................................9
1.5 CROSS-REFERENCES .................................................. ...........................................11
1.6 CHANGES FROM PREVIOUS EDITION .................................................. ....................11
1.7 COMMENTS ON THIS DEP............................................... ........................................11
2. PROCESS DESCRIPTION OF GAS DEHYDRATION .................................................. ....12
2.1 BASIC FLOW SCHEME .................................................. .........................................13
2.2 COLDFINGER........................................ .................................................. ...............14
2.3 VACUUM............................................ .................................................. .................14
2.4 GAS STRIPPING......................................... .................................................. ..........14
2.5 AZEOTROPIC STRIPPING .................................................. .....................................15
2.6 ACID GAS SOLUBILITIES AND STRIPPING .................................................. .............15
2.7 DEHYDRATION OF CO2............................................... ...........................................15
2.8 MERCURY IN THE FEED GAS............................................... ....................................16
2.9 PROCESS VARIABLES .................................................. ..........................................17
2.10 WATER CONTENT OF NATURAL GAS............................................... ......................18
2.11 GLYCOL LOSSES............................................ .................................................. ....19
3. DESIGN GUIDELINES FOR GAS DEHYDRATION SYSTEMS........................................... 20
3.1 INLET GAS COOLER............................................ .................................................. ..22
3.2 DEHYDRATION INLET SCRUBBER .................................................. ..........................22
3.3 CONTACTOR .................................................. .................................................. .....23
3.4 GLYCOL REGENERATOR....................................... .................................................. .33
3.5 HEAT EXCHANGERS .................................................. .............................................39
3.6 SURGE DRUM .................................................. .................................................. ....42
3.7 GLYCOL FLASH VESSEL............................................ ..............................................42
3.8 CONDENSED OVERHEADS SEPARATOR......................................... ...........................43
3.9 FILTERS .................................................. .................................................. ............43
3.10 GLYCOL CIRCULATION PUMPS............................................. .................................44
3.11 PIPING, VALVES AND FITTINGS.......................................... ..................................45
3.12 GAS STRIPPING......................................... .................................................. ........46
3.13 AZEOTROPIC STRIPPING (DRIZO) .................................................. ......................47
3.14 ELECTRICAL REQUIREMENTS...................................... ..........................................48
3.15 MECHANICAL REQUIREMENTS .................................................. ...........................48
3.16 GLYCOL REGENERATION FOR HYDRATE INHIBITION SYSTEMS...............................50
4. UPGRADING OF GAS DEHYDRATION SYSTEMS .................................................. ......52
4.1 INLET SEPARATION........................................ .................................................. ......52
4.2 CONTACTOR .................................................. .................................................. ....52
4.3 GLYCOL REGENERATION CIRCUIT........................................... ...............................53
5. OPERATION AND MAINTENANCE OF GLYCOL DEHYDRATION SYSTEMS......................54
5.1 PERFORMANCE CONSIDERATIONS .................................................. ......................54
5.2 OPERATING PROBLEMS.......................................... ...............................................57
5.3 START-UP AND SHUT-DOWN PROCEDURES .................................................. .........58
5.4 MAINTENANCE....................................... .................................................. .............58
6. PROCESS CONTROL AND PROTECTIVE FUNCTIONS ................................................59
6.1 GLYCOL CONTACTOR......................................... .................................................. .60
6.2 FLASH VESSEL .................................................. .................................................. .60
6.3 REGENERATOR .................................................. .................................................. .60
6.4 ALARMS, INDICATIONS AND PROTECTIVE FUNCTIONS......................................... ...61
7. REFERENCES .................................................. .................................................. .....62
8. BIBLIOGRAPHY .................................................. .................................................. ..65


Hopefully Usefull

regards,
oworo

[fantastz]

thanks!

[samuelektro]

thank you a lot !!!!!!

[khalid655]

link is dead please share again

[nabucodonosan]

The link LIVE!

[aragorn]

Thanks

[chemnguyents]

good material.