Glycol Dehydration

INTRODUCTION

I. FLOW DESCRIPTION

II. EQUIPMENT

A. Contactor

B. Flash Tank

C. Filter

D. Stripper or Still

1. Stripping Gas

2. Stripping Liquid

E. Surge Tank

F. Exchangers

G. Pump

H. BTEX Removal Facilities

III. APPLICATION OF GLYCOL DEHYDRATION

IV. CONTROL OF DEHYDRATION PLANT

A. Moisture Content of Gas

B. Dew Point

C. Hydrate

D. Glycol Flow Rate to Contactor

E. Glycol Concentration

F. Other Control Points

V. OPERATION

A. Start-Up

B. Routine Operation

C. Shut Down

VI. TROUBLESHOOTING

A. Foaming

B. Burping

C. Corrosion

D. High Moisture Content of Outlet Gas