ReNew ELP’s Cat-HTR process uses water at high pressure and supercritical temperatures to convert a range of feedstocks into synthetic crude oil, and valuable petrochemical products including solvents and waxes.
The patented technology is unique when compared to every other plastic conversion process, as it uses water as the ‘agent of change’. Consequently there is no need to dry feedstock prior to the process.
The heat and pressure in the reactor rapidly breaks down the polymeric bonds creating short-chain, stable, useful hydrocarbons. During the reaction, water molecules are split and the hydrogen released is used to produce new hydrocarbons. By using water, the process generates more stable products and reduces the generation of greenhouse gases, unwanted by-products (e.g. ash) and toxins.
ReNew ELP’s process is more energy efficient that alternative techniques such as pyrolysis and gasification, as it operates at far lower temperatures. Outputs from the Cat-HTR include gases and liquid, which is a mix of water and product at high pressure.
Gases are recovered for re-use within the process, while the product is separated from the water and transferred to product storage tanks. Heat energy and water are recovered and re-used to maximise process efficiency. The product can then be shipped in bulk or processed further depending on client requirements.
Unlike techniques such as pyrolysis, hydrothermal upgrading produces a stable biocrude, which can be easily shipped, is not acidic and is miscible (blendable) with conventional oil.