Vertical high-pressure knockout drum for sour and hydrogen service, originally a recycle gas compressor K/O drum. Built 2009 by Sewon Cellontech to ASME Section VIII Div. 1 (2004 Ed., 2006 Add.) and CSA B51, ASME U-stamped, CRN U7830.2, National Board No. 462. Stored horizontally on dunnage in Beiseker, AB, disconnected and ready to load.

Design data (nameplate and U-1A):
- MAWP: 1,872 psig at 350°F internal; full vacuum external at 125°F
- MDMT: -20°F at 1,872 psig
- Shop hydrotest: 2,589 psig
- Service: Sour & Hydrogen (per nameplate)
- Shell: SA-516-70N, 90" ID, 4.685" nominal wall, 137.3" (11' 5") long
- Heads: hemispherical, SA-516-70N, 2.35" minimum
- Corrosion allowance: 0.187"
- Seams: Type 1, 100% radiography (RT-1), joint efficiency 1.0
- Post-weld heat treated (1,130-1,164°F, 3.5 hr)
- Impact tested at -20°F (skirt at -49°F)
- Support: skirt welded to bottom head
- Empty weight: 109,530 lb (49,680 kg) per nameplate
- Shipping envelope (as-built transport drawing): 8,100 x 3,070 x 3,690 mm (26.6' x 10.1' x 12.1')

Nozzles (U-1A; SA-105N, welded, integral reinforcement):
- 16" Class 900 flanged outlet
- 12" Class 900 flanged inlet
- 24" ID Class 900 manway (shell)
- 4" Class 900 flanged vent
- 4" Class 900 flanged bottom outlet / drain with vortex breaker
- (2) 2" Class 900 flanged level gauge
- (6) 2" flanged level transmitter (U-1A lists Class 150; 2025 inspection found Class 900)

Internals: mist extractor (demister) and vortex breaker on the 4" bottom outlet, per 2025 inspection.

Condition (external inspection with UT, May 2025):
- Shell UT 5.125"-5.154" vs 4.685" nominal; heads 2.775"-2.825" vs 2.350" nominal; 4" XXH drain 0.722"-0.725" vs 0.673" nominal
- No visible leaks; skirt and attachment welds in good condition
- One 4" Class 900 RF drain flange face has light surface rust and needs minor resurfacing; refacing can be completed on purchase. All other flange faces in good condition
- One ladder bracket bent (no ladder included). No PSV, gauges or external piping included
- Insulated with aluminum cladding and heat traced

Documents on this listing: U-1A Manufacturer's Data Report, as-built drawing, nameplate photos, 2025 inspection and UT report.

26.6' x 10' x 12.1' - Empty Weight 109,530 lbs

This high-pressure knockout drum is engineered for vapor-liquid separation in sour service environments and is well suited for upstream oil and gas processing operations. Typical applications include knockout service, inlet separation, and condensate removal in gas treatment systems. With an 1,872 PSI rating and 570 bbl capacity, it is ideal for both permanent and modular installations where large volumes of gas require pre-treatment before compression or processing.

Suitable for use in gas plants, well pads, early production facilities, and offshore platforms, this vessel is built to Canadian CRN standards and may be compatible with international project requirements. Its robust design and capacity make it an good fit for EPCs or producers seeking, high-performance separation solutions for harsh or remote environments.