Norma irani de petroleo

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IPS-E-PR-895

ENGINEERING STANDARD FOR PROCESS DESIGN OF SOLID-LIQUID SEPARATORS ORIGINAL EDITION JULY 1997

This standard specification is reviewed and updated by the relevant technical committee on Jan. 2006. The approved modifications are included in the present issue of IPS.

This Standard is the property of Iranian Ministry of Petroleum. All rights are reserved to the owner. Neitherwhole nor any part of this document may be disclosed to any third party, reproduced, stored in any retrieval system or transmitted in any form or by any means without the prior written consent of the Iranian Ministry of Petroleum.

July 1997 CONTENTS :

IPS-E-PR-895
PAGE No.

0. INTRODUCTION............................................................................................................................. 2 1. SCOPE ............................................................................................................................................ 3 2. REFERENCES ................................................................................................................................ 3 3. DEFINITIONS AND TERMINOLOGY............................................................................................. 3 4. SYMBOLS AND ABBREVIATIONS ............................................................................................... 4 5. UNITS.............................................................................................................................................. 5 6. GENERAL....................................................................................................................................... 5 6.1 Solid-Liquid Separator Types ................................................................................................ 5 6.2 Separation Principles ............................................................................................................. 5 7. LIQUID FILTERS............................................................................................................................ 6 7.1 General..................................................................................................................................... 6 7.2 Filter Selection ...................................................................................................................... 10 8.CENTRIFUGES............................................................................................................................. 14 8.1 General................................................................................................................................... 14 8.2 Selection ofCentrifuges....................................................................................................... 16 9. HYDROCYCLONES...................................................................................................................... 18 9.1 General................................................................................................................................... 18 9.2 Hydrocyclone SizeEstimation............................................................................................. 19 APPENDICES: APPENDIX A SPECIFICATIONS FOR FILTER MEDIA ........................................................... 22 TABLE A.1 - TYPICAL SPECIFICATIONS FOR METAL (MEMBRANE) FILTERS................... 22 TABLE A.2 - PRINCIPAL WEAVES FOR WIRE CLOTHS ......................................................... 22 TABLE A.3 - A TYPICAL LIST OF WIRE CLOTH SPECIFICATIONS*..................................... 23 TABLE A.4 - PERFORATED MESH SIEVES *............................................................................ 24 TABLE A.5 - PERFORATED METAL DATA *............................................................................. 25 APPENDIX B PRESSURE DROP CHARACTERISTICS OF STRAINERS.............................. 26 Fig. B.1 ESTIMATION OF PRESSURE LOSS IN TYPICAL...
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