Gas Liquids Engineering Ltd. (GLE) debottlenecked the Coleman sour gas plant. Throughput was increased from 70 MMSCF/d to 100 MMSCF/d of raw inlet gas with 18.3% H2S content. The plant was originally built in the 1960’s, which posed some challenges due to full stick-built construction methodology and aging equipment in severe sour service. GLE performed a detailed evaluation of the existing plant consisting of the following equipment.
- Inlet Separation
- Sour Inlet Condensate Stabilizer (300 bbl/d)
- 1575 US gpm Sulfinol-D™ gas sweetening and regeneration system
- Two-tower Sorbead® gas dehydration system
- Sales gas compression
- 700 tonne/d 2-stage Claus + SUPERCLAUS® sulphur recovery unit
- 215,000 lb/hr 400# / 160# / 50# / 15# utility steam system
- Fuel gas system
- HP and LP flare systems
The debottlenecking scope included:
- Modifications to existing inlet separators and inlet manifolds
- Debottlenecking within the gas sweetening and regeneration system
- New contactor with stainless cladding
- New Sulfinol™ flash tank with stainless cladding
- Upsized piping to the two regeneration trains
- Additional lean Sulfinol™ cooling
- Installation of lean Sulfinol™ filtration
- Addition of a 160 USGPM LP gas sweetening utilizing DGA (diglycolamine) and LP sour recycle compression
- New three-tower Sorbead® gas dehydration system
- New sales compression
Eventually the plant was decommissioned and demolished in 2013-2014.