Biomass supercritical water gasification hydrogen production absorption reactor thermally driven by solar energy

Abstract

The invention discloses a biomass supercritical water gasification hydrogen production absorption reactor thermally driven by solar energy. An absorption reactor cavity is connected with a conical surface solar energy secondary condenser, thus effectively improving heat flux density at the daylight opening of the absorption reactor; the absorption reactor cavity is internally provided with a coiler flow biomass supercritical water reactor, biomass and supercritical water continuously flow in a reaction tube to absorb and focus solar energy direct radiation and cavity inner wall secondary radiation for gasification hydrogen production reaction; the coil flow reactor is divided into a preheating section and a reaction section, thus realizing fast warming of biomass material; the inner wall of the absorption reactor is built by laying firebricks and coated with silicate heat insulation cotton; and the inclined angle of the absorption reactor can be adjusted by a pedestal adjusting screw rod. The absorption reactor, being one core part of the biomass supercritical water gasification hydrogen production devices thermally driven by solar energy, can realize continuous gasification hydrogen production of various biomasses in supercritical water and has the characteristics of low cost, safety and high efficiency.

Description

technical field [0001] The invention belongs to the field of solar energy utilization and the clean conversion and utilization of biomass and organic waste, relates to biomass supercritical water gasification hydrogen production technology, in particular to a solar thermally driven biomass supercritical water gasification hydrogen production absorption reactor . Background technique [0002] With the depletion of fossil energy and the increasingly serious environmental pollution caused by fossil fuels, the development of renewable alternative energy is imminent. As a good energy carrier, hydrogen is considered as a bridge connecting renewable energy and chemical fuels in the future. Therefore, the development of large-scale hydrogen production technology has become a research hotspot in the energy field. [0003] Biomass supercritical water hydrogen production technology is a new hydrogen production technology developed in the 1970s. Biomass supercritical water hydrogen p...

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Problems solved by technology

There are many methods of solar-driven thermochemical water splitting and biomass hydrogen production, such as direct water splitting, two-step or multi-step water splitting, methane reforming hydrogen production, etc., and direct solar-driven supercritical water gasification of biomass Hydrogen technology has no relevant reports

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