ExxonMobil and Renewable Energy Group announced that they have signed a joint research agreement with Clariant to evaluate the potential use of cellulosic sugars from sources such as agricultural waste and residues to produce biofuel, which has the potential to play a role in reducing greenhouse gas emissions. The new partnership expands a previously announced agreement for joint research between ExxonMobil and REG, in which the companies successfully validated the ability of REG Life Sciences bio-conversion technology to convert sugars from cellulosic biomass into biodiesel through a single-step process. The new agreement with Clariant allows ExxonMobil and REG to further optimize REG's bio-conversion process using previously tested and benchmarked cellulosic sugars created through Clariant's sunliquid® process.

The companies' ultimate objective is to combine Clariant's and REG's processes into a seamless cellulosic biomass-to-biodiesel technology. The partners will also work on a conceptual engineering study to validate the feasibility of the integrated process comprising the technologies of all parties.