SBI can produce renewable diesel, gasoline, and jet fuel at various proportions. In the beginning, SBI anticipates that its fuel products will consist of 90% renewable diesel and 10% renewable gasoline. When the market for renewable jet fuel becomes established, SBI can adjust its process to produce more jet fuel and less renewable diesel. Ultimately, this transition will depend upon the future price points of the different fuels. Besides fuel, SBI will produce a very pure glycerin for the food, cosmetic, and pharmaceutical industries. Glycerin can also be used as natural renewable alternative to petroleum based polyols in making bioplastics.
A reactor called PICFTR is used in two stages to initially convert triglycerides and fatty acids into biodiesel and then into renewable fuels. During this process, a stream of pure glycerin is separated prior to the second stage and is protected from reducing to low-value fuel propane.
Stage 1: High quality biodiesel and pure glycerine are produced from triglycerides present in natural oils and fats by reacting with methanol and a proprietary CGCTM catalyst (catalyst 1) held in a PICFTR reactor in one single step. The process consumes no chemicals or water at any stage and produces no waste. This process is flexible in terms of the feedstock source of triglycerides and/or free fatty acids. SBI’s process can use 100% free fatty acids and mixtures with triglycerides in almost any ratio.
Stage 2: The biodiesel is then fed into a second stage PICTFR reactor, holding another proprietary CGCTM catalyst (catalyst 2). Without adding hydrogen or other consumable chemicals, the biodiesel is stripped of its oxygen contents and long hydrocarbons molecules are generated. These hydrocarbons are spliced, re-stitched, and rearranged into a continuous stream of an array of blended hydrocarbon components, similar to petroleum-derived fuels. The hydrocarbon stream is then distilled and fractionated continuously and automatically into the various types of renewable fuels.
SBI’s process is feedstock-flexible allowing for the use of a wide variety of feed oils including high FFA animal fats, yellow grease, and wide variety of vegetable oils, tall oil and a mixture thereof.
SBI fuels are of much higher quality in comparison to biodiesel and many of the renewable fuels. These advantages include:
• Higher energy content (BTU) in comparison to biodiesel;
• Renewable diesel provides higher engine output, lower emissions, and reduced fuel consumption in vehicles compared to conventional petroleum;
• With superior molecular composition, SBI fuels can be used unblended, in pure form, or as a true Drop-In replacement of petroleum fuels;
• Percentage volumes produced by renewable diesel, gasoline, and jet fuel can be adjusted to suit changing market; and
• Produces a valuable by-product in pure glycerin that can be sold for additional profit.
SBI has multiple environmental advantages due to the nature of its manufacturing process. The advantages include the following:
• Feed stock can easily be changed between various sources of vegetable, algae oil, forestry waste (tall oil), or animal oils with high free-fatty acid contents;
• No hazardous emissions to environment;
• There are no water or land contamination issues;
• The use of non-renewable chemicals is eliminated;
• There is only a very small GHG or carbon footprint;
• SBI products have a Negative Carbon Intensity (CI) footprint of -14g/Mj compared to +94g/Mj from
petroleum fuels; and
• The process uses a much smaller land footprint than conventional biofuel plants.