Design basis
Define gas flow and composition, H₂S load, pressure, temperature, hydrocarbon and BTEX carry-over, required treated-gas specification, allowable oxygen ingress and sulfur-product handling route.
Sulfur & Environmental · ENGINEERED SCOPE
THIOPAQ Biological Desulfurization Systems
Biological desulfurization combines selective H₂S absorption with controlled biological oxidation to recover a sulfur-rich solids stream. The process can suit selected low- to medium-pressure gas duties where feed contaminants, oxygen management, water chemistry and technology licensing are addressed from the design basis.
Engineering approach
THIOPAQ Biological Desulfurization Systems
A technically defined package begins with the operating envelope—not a catalogue model.
Rated capacity, minimum stable load, feed envelope, inlet and outlet conditions, product specification, start-up and shutdown cases, design life and acceptance criteria are agreed before equipment definition is frozen. The review also records utility margins, interfaces, inspection hold points, maintainability constraints and the evidence required for a controlled handover.
Process configuration
A typical configuration includes an alkaline absorber, solution circulation, a controlled bioreactor, air or oxygen dosing, nutrient and pH control, sulfur separation and bleed-water management. Final arrangement remains subject to the selected licensor and site constraints.
Verification focus
Engineering review covers absorber mass transfer, biological loading, oxygen balance, foaming, corrosion, sulfur settling and filtration, off-gas safety, biomass stability and start-up or upset recovery.
PROJECT DEFINITION · DELIVERY
Clear inputs, auditable outputs
Technical proposal quality depends on verified process data, acceptance criteria and interface definition. The following information is confirmed during clarification.
RFQ information
- Normal, minimum, start-up and credible upset flow cases
- Define gas flow and composition, H₂S load, pressure, temperature, hydrocarbon and BTEX carry-over, required treated-gas specification, allowable oxygen ingress and sulfur-product handling route.
- Site utilities, ambient data, hazardous-area classification and battery limits
- Required performance guarantee, redundancy and availability philosophy
- Applicable project codes, materials, inspection requirements and document format
Engineering deliverables
- Design basis, process description and operating philosophy
- Heat and material balance, PFDs, P&IDs and utility summary
- Equipment datasheets, line and instrument lists, control narrative and cause-and-effect inputs
- Layout, nozzle and interface data, foundation loads and maintainability review
- Inspection and test plan, FAT documentation, manuals and final manufacturing record
RFQ
Discuss this duty with engineering
Share the operating cases, feed data and required guarantee so the applicable process route, package boundary and verification plan can be defined.