Sinotech

How Sinotech can help you?

Patented Amine solution can be stripped of the absorbed CO₂ at 90°C, 25% below the industry standard. Along with the efficient heat recovery design, it results in a very low energy demand per ton of captured CO₂. The Sinotech liquefaction process is the most efficient way to store CO₂ simplifying onshore disposal logistics.

Sinotech CCS process consists of four stages: Scrubbing Absorption, De-sorption and Storage

1st Stage, Scrubber

The hot exhaust gas from main and aux engines as well as boiler is cooled down from a capacity 300°C to 30°C and sulphur dioxide is removed, in line with IMO 2020 sulfur discharge limits. In case of a stand-alone CCS, this would be simple quenching stage to cool down the exhaust gas with sea water.

2nd Stage, Absorption Tower

The cool exhaust is moving upwards while amine solution droplets rain down. During this interaction between gas and liquid, the amine solution absorbs CO₂. The clean exhaust is discharged into the atmosphere while the rich amine solution is collected at the bottom of the tower. A droplet separator at the top of the tower makes sure that amine droplets are kept in the process.

3rd Stage, Desorption Stage

The rich amine solution heated up by means of a heat exchanger and a reboiler. The high temperature releases the CO₂ so that the lean amine solution can be collected at the bottom of the desorption tower. Its residual thermal energy is recovered in the heat exchanger before the amine solution is recirculated into the second stage. The CO₂ is collected at the top of the de-sorption tower and any evaporated amine solution is recovered in the condenser.

4th Stage, Storage

The CO₂ is compressed and cooled down to 2.4 MPa and -20°C respectively which reduces its volume by 99.9% before it is stored in cryogenic tanks.

Plug and Play CO₂ Removal

The liquified carbon dioxide can be stored in IMO Type C tanks as well as 20’ or 40’ tank containers. Due to Sinotech’s simple CO₂ off-loading, the second option is especially suitable for CCS installations on container vessels.

The liquid CO₂ can be offloaded in port to quayside tank trucks, CO₂ tank barges or a permanent onshore CO₂ reception facility. The optimum system setup and CO₂ recovery rate is selected based upon several factors including the vessels trade route, onboard storage capacity and preferred discharge locations.