VERDIS GTD IS A STATE-OF-THE-ART, SCALABLE, MODULAR, 100% CLEAN TECHNOLOGY
The patented Verdis GTD technology captures and converts 100% of the free associated natural gas into ultra clean diesel, producing 0% emissions.
The Verdis modular design is fully scalable, ranging from micro GTL units to large scale petrochemical plants.
VERDIS GTD PROCESS SCHEMATIC
- Fischer-Tropsch based Gas to Liquids (GTL) process: key differentiation is patented catalyst
- Only product converting gas directly to ultra-clean diesel in single pass, at low-pressure, no hydro-cracking
- Significant savings in capital & operational cost
- By-products: water, surplus electricity. Units are self-powering (excellent for remote, desert or arctic use)
- Process reviewed & endorsed by the World Bank Global Gas-Flaring Reduction Partnership
STEP 1 – INPUT GAS SCRUBBING
- Higher combustibles (ethane, propane, etc.) improve diesel production
- Inerts have no effect
- H2S degrades catalyst performance and must be removed, to a level >1 PPM
- This requires a standard gas scrubber (SulfaTreat or zinc oxide possible)
- OR: Canada Chemical Corporation has a proprietary Batch Oxidation technology to convert H2S to elemental sulfur
STEP 2 – VERDIS GTD UNIT STARTUP
- A small amount of hydrocarbon raw gas is burned in the reformer
- This is used to pre-heat the entire train.
- As delivered, the Fischer-Tropsch catalyst contains cobalt oxide (the metallic form is pyrophoric when exposed to air and would be dangerous to handle).
- To activate the catalyst for FT syngas conversion: catalyst reduced to metallic cobalt inside FT reactor using hydrogen
STEP 3 – SYNGAS PRODUCTION
- Feed gas moves into a highly-advanced plasma-based Syngas Reformer
- Required temperature and pressure (50PSI) is achieved
- Gas fully prepared for conversion in next stage: H2:CO ratio sought 2.0
- (Includes compressor, coolers, water knockout, piping to storage)
STEP 4 – ULSD DIESEL PRODUCTION
- High capacity Fischer-Tropsch reactor comprised of 4 inch catalyst tubes
- Pressure <200PSI, cobalt catalyst crystallite size 16NM
- Syngas converted into diesel, water, naptha, tail gasses
- (Includes FT reactor, Dowtherm ® coolant condenser, coolant circulation equipment, synthesis gas recycle loop)
STEP 5 – ULSD COLLECTION
- FT Reactor products are separated and captured in one ‘cold trap’ and one ‘hot trap’
- They are then directed to different storage tanks on site, waiting tanker trucks, or possibly pipelines, for further distribution to end-users
- The process continues once started. 350 days of uptime per year is anticipated