E3Tec Service LLC was founded in 2007 as a spin-off from Argonne National Laboratory. Since then E3Tec has developed a multi-disciplinary team with extensive R & D and Demonstration experiences. E3Tec provides consulting services to the process industry for mitigation of petroleum fouling, energy efficiency technologies and removing technical and economic barriers of Ocean Thermal Energy Conversion (OTEC). E3Tec team has developed Heat Integrated Reactive Distillation (HIRD) process equipped with side reactors and PerVaporization (PerVap) membranes for manufacturing specialty chemicals using an ASPEN Plus® based Scale-down to Scale-up design methodology to minimize technical risks. The process is applied to conversion of captured CO2 to dimethyl carbonate (DMC) and synthesis of ester-based plasticizers namely triethyl citrate (TEC) and dioctyl succinate (DOSX). E3Tec has developed a patented Differential Kinetic Test Unit (DKTU) for obtaining kinetic parameters of catalyst reactors for scaling kinetic models to flow reactors, including reactive distillation; US 8,222,924 B1 Dec. 2015. E3Tec has successfully completed DOE SBIR Phase I and II and USDA Phase I on esterification of organic acids and was granted Patent US 9,174,920 B1 Nov. 2015. The project on conversion of CO2 to alkyl carbonates was initially supported by CCEMC, Alberta, Canada and now supported by DOE SBIR Phase I and Phase II grants. E3Tec has been granted two patents on method of producing high-concentration DMC using CO2 as feedstock; US 9,518,003 B2 Dec. 2016 and US 9,796,656 B1 Oct. 2017. In 2019, E3Tec received SBIR Phase IIs grant for developing an integrated process of CO2 capture and conversion to DMC. With an emerging process of CO2-based methanol, E3Tec is pursuing an integrated DMC process of CO2-based methanol using a renewable source of hydrogen produced by Ocean Thermal Energy Conversion (OTEC).