Renewable Diesel Process Overview
1. Feedstock Selection: The first step in making renewable diesel is selecting the appropriate feedstock. New Rise has chosen to use the cleanest of the various feedstocks by only using soybean and corn oil.
2. Pre-treatment: The feedstock is pre-treated through a ‘degumming’ process which removes phosphatides as well as any other any impurities such as trace metals. This is done to ensure that the final product is of high quality and meets the required specifications.
3. Hydrotreating: The pre-treated feedstock is then heated to high temperatures and mixed with hydrogen gas in the presence of a catalyst to undergo hydrotreating. This process involves breaking down the long-chain hydrocarbons in the feedstock into smaller molecules, which are then purified to create a cleaner fuel.
4. Fractionation: After hydrotreating, the mixture is then fractionated to separate the different components of the fuel based on their boiling points. This allows for the removal of any unwanted compounds and ensures that the final product meets the required specifications.
5. Hydrogenation: The final step in making renewable diesel involves hydrogenation, which is the process of adding hydrogen to the fuel to improve its properties. This is done to increase the cetane number of the fuel, which is a measure of its combustion quality, and to reduce the amount of pollutants emitted during combustion.
All Experienced Process Manufacturers with Proven Technologies
Feedstock Pretreatment Unit
Alfa Laval Equipment and Process Design
Founded in 1883, Alfa Laval is a global leader in renewable feedstock pretreatment systems
- Ability to handle multiple types of feedstocks
- Low Energy Consumption
- Deep removal of phosphorous and free fatty acids, for the highest feedstock quality and maximized catalyst life
Steam Methane Hydrogen Reformer
Founded in 1879, Linde is a global leader in the production, processing, storage and distribution of hydrogen.
Produces hydrogen for the hydrotreater.
- Excess steam from the SMR is routed to a steam turbine/generator, producing 800 KW of power to offset electricity requirements and recycle the water.
- Optimized plant design to reduce energy costs
- Full automation with fail-safe controls that allow unattended operation
- Energy recovery of propane from hydrotreater
Hydrotreating and Catalyst Provider
Axens North America
Founded in 2001, Axens is a leading provider of technologies to convert biomass into biofuels.
Converting triglycerides into renewable diesel, naphtha, and propane.
- Propane that is produced is recycled back to the SMR and used as feedstock
- Minimizes CO2 formation and maximizes yield
- Multi-year cycle lengths using a robust catalyst system
- Market-leading reactor heat management resulting in reduced reactor sizing
- Manages pressure drop utilizing unique HyClean® reactor internals and process scheme
- Full feedstock flexibility without modifications
- SAF production capable
- Full cold flow property flexibility