NOVELTY - A solar-driven chemical plant (200) system (210) comprises a solar thermal receiver aligned to absorb concentrated solar energy from at least one solar energy concentrating fields; a solar driven chemical reactor that has multiple reactor tubes located inside the solar thermal receiver; at least one aperture (204) open to an atmosphere of the earth or covered by at least one window; a quench zone immediately downstream of an exit of the chemical reactor to immediately quench via rapid cooling of at least the hydrogen and carbon monoxide; and an on-site chemical synthesis reactor.    USE - As a solar-driven chemical plant system for solar driven refining of biomass and other materials with quenching, gas cleanup, and ash removal from the refined biomass or other materials; and for absorb concentrated solar energy from solar energy concentrating fields such as an array of heliostats, and a solar concentrating dishes.    ADVANTAGE - The quenching prevents metal dusting, prevent coalescence of ash remnants, and possibly minimize Boudouard carbon formation. The system converts greater than 90% of the biomass to product gases; uses an external source of energy (solar) to provide the energy required for reaction, thus none of the biomass need be consumed to achieve the conversion.    DETAILED DESCRIPTION - A solar-driven chemical plant (200) system (210) comprises a solar thermal receiver aligned to absorb concentrated solar energy from at least one solar energy concentrating fields including an array of heliostats, and/or solar concentrating dishes; a solar driven chemical reactor that has multiple reactor tubes located inside the solar thermal receiver, where in the multiple reactor tubes particles of biomass are gasified in the presence of a carrier gas in a gasification reaction to produce reaction products that include hydrogen and carbon monoxide gas having an exit temperature from the reactor tubes exceeding 1000 degrees C; at least one aperture (204) open to an atmosphere of the Earth or covered by at least one window, configured to pass the concentrated solar energy from the solar energy concentrating fields into the solar thermal receiver to impinge on the multiple reactor tubes and cavity walls of the receiver, where the reactor tubes serve the dual functions of segregating the biomass gasification reaction environment from an atmosphere of the solar thermal receiver and transferring energy by solar radiation absorption and heat radiation, convection, and conduction to the reacting particles to drive the endothermic gasification reaction of the particles of biomass flowing through the reactor tubes; a quench zone immediately downstream of an exit of the chemical reactor to immediately quench via rapid cooling of at least the hydrogen and carbon monoxide of the reaction products within 10 seconds of exiting the chemical reactor to achieve a temperature after quenching of less than or equal to 800 degrees C, which is below a level to reduce coalescence of ash remnants of the biomass particles; and an on-site chemical synthesis reactor that is geographically located on the same site as the chemical reactor and integrated to receive the hydrogen and carbon monoxide products which have passed through the quench zone, where the on-site chemical synthesis reactor has an input to receive syngas, which contains the hydrogen and carbon monoxide products from the solar driven chemical reactor, and then is configured to use the syngas in a hydrocarbon synthesis process to create a liquid hydrocarbon fuel or other chemical. An INDEPENDENT CLAIM is included for capturing product gases from a solar-driven chemical plant involving gasifying biomass particles in multiple reactor tubes in a solar driven chemical reactor, where in the particles of biomass are gasified in the presence of a carrier gas in a gasification reaction to produce reaction products that include hydrogen and carbon monoxide gas having an exit temperature from the tubes exceeding 1000 degrees C; passing the concentrated solar energy to impinge on the multiple reactor tubes and cavity walls of a solar thermal receiver; transferring energy by solar radiation absorption and heat radiation, convection, and conduction to the reacting particles to drive the endothermic gasification reaction of the particles of biomass flowing through the reactor tubes; and quenching via rapid cooling of at least hydrogen and carbon monoxide reaction products within 10 seconds of exiting the chemical reactor to a temperature of less than or equal to 500 degrees C immediately downstream of an exit of the chemical reactor, where the rapid cooling to a temperature of less than or equal to 500 degrees C is below a level to reduce coalescence of ash remnants of the biomass particles and prevent metal dusting.    DESCRIPTION OF DRAWING(S) - The figure shows view of diagram of solar-driven chemical plant.    Solar-driven chemical plant (200)    Aperture (204)    Quencher (208)    Solar-driven chemical plant system (210)    Syngas flows out (212)