How Do We Maximize the Carbon Efficiency of Renewable Fuel Production?

June 21, 2022

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by Henrik Rasmussen (Biobased Diesel Daily/Topsoe) ... To maximize profitability and, by extension, viability, a renewable fuel business has to produce jet or diesel fuel at the lowest possible carbon-intensity (CI) score, thereby qualifying for greater subsidies overall. As such, it pays off—both short and long term—to minimize the CI of a renewable fuel throughout the value chain, including via the process technology utilized in production.

And one of the best ways to do that is by turning your fuel production’s main byproducts into renewable hydrogen with Topsoe’s market-ready H2bridge™ technology.

A Renewable Loop for Mutually Beneficial Production

During fuel production, the hydrotreatment of triglycerides in a Topsoe HydroFlex™ unit results in a small amount of off-gas, propane and naphtha. These are subsequently fed into the H2bridge™ unit, thereby reducing the operation’s total natural-gas requirement by 95 percent, and almost entirely eliminating the need for fossil-based natural gas as a key component of hydrogen production.

The green hydrogen produced by H2bridge™ is then sent to the HydroFlex™ unit, where it is used to hydrotreat and dewax the triglyceride products. READ MORE