electrochemical routes that limit the production of COx species. Evaluate the inorganic species identity and transport through the direct liquefaction and upgrading processes with a particular emphasis correlation of inorganic species with biogenic carbon usage efficiency. Barrier Area 3: Separation Systems and Selective Research Activities Fractionation Solvent recovery and recycle is difficult in Evaluate bio-oil quality and contaminant buildup many liquefaction processes. Better over longer-term testing in recycle scenarios in technologies are needed to improve the continuous operation. cost-competitiveness. Evaluate/develop optimal high-temperature Vapor phase filters: process optimization, membrane/filtration materials that are robust high-temperature filter and gasket compatible with biomass-derived liquids, solids, materials, catalytic removal/upgrading of and gases. specific process-stream components and Develop optimal pressure pulse to enable permeable selective filters. particulate removal from filters/membranes that The need better understand solids are compatible with biomass-derived liquids and separation from condensable gas streams gases with minimal bio-oil loses. with the balance of filter efficiency, and Demonstrate long-term solids filtration at high regeneration cycles for optimal temperature. performance while minimizing the loss of Evaluate catalytically active filters to balance bio-oil. optimal solid filter cake and upgrade bio-oils. Liquid phase filters/membranes: process optimization and techniques to improve Demonstrate high-temperature, high-pressure anti-fouling, aids to stabilize desired permeable, and selective filters/membranes to product, and process yields. remove H2 from off gas, syngas, and recycled gas. Lack of knowledge about what fraction(s) Evaluate process economics for separating solids do we want to separate (e.g., large from bio-oils compare hot-vapor separation and – oligomers, water, small organics, condensed phase separation inorganics) and the trade-offs involved. Evaluate the fundamental aspects of degradation Need for improved separation of aerosols mechanisms for hydrocyclones in and particulates from vapor phase biomass separation systems. Evaluate which oxygenates are problematic and develop selective separation processes, e.g., adsorption, extraction, magnetic- and separations, etc. Develop/demonstrate energy efficient water removal processes.
electrochemical routes that limit the production of COx species. Evaluate the inorganic species identity and transport through the direct liquefaction and upgrading processes with a particular emphasis correlation of inorganic species with biogenic carbon usage efficiency. Barrier Area 3: Separation Systems and Selective Fractionation Research Activities Solvent recovery and recycle is difficult in many liquefaction processes. Better technologies are needed to improve the cost-competitiveness. Vapor phase filters: process optimization, robust high-temperature filter and gasket materials, catalytic removal/upgrading of specific process-stream components and permeable selective filters. The need better understand solids separation from condensable gas streams with the balance of filter efficiency, and regeneration cycles for optimal performance while minimizing the loss of bio-oil. Liquid phase filters/membranes: process optimization and techniques to improve anti-fouling, aids to stabilize desired product, and process yields. Lack of knowledge about what fraction(s) do we want to separate (e.g., large oligomers, water, small organics, inorganics) and the trade-offs involved. Need for improved separation of aerosols and particulates from vapor phase Evaluate bio-oil quality and contaminant buildup over longer-term testing in recycle scenarios in continuous operation. Evaluate/develop optimal high-temperature membrane/filtration materials that are compatible with biomass-derived liquids, solids, and gases. Develop optimal pressure pulse to enable particulate removal from filters/membranes that are compatible with biomass-derived liquids and gases with minimal bio-oil loses. Demonstrate long-term solids filtration at high temperature. Evaluate catalytically active filters to balance optimal solid filter cake and upgrade bio-oils. Demonstrate high-temperature, high-pressure permeable, and selective filters/membranes to remove H2 from off gas, syngas, and recycled gas. Evaluate process economics for separating solids from bio-oils – compare hot-vapor separation and condensed phase separation Evaluate the fundamental aspects of degradation mechanisms for hydrocyclones in biomass separation systems. Evaluate which oxygenates are problematic and develop selective separation processes, e.g., adsorption, extraction, magnetic- and separations, etc. Develop/demonstrate energy efficient water removal processes.
CTAB%20ROADMAP_PreRFI_Final.docx