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

A supercritical water gasification and solar energy absorption technology, which is applied in the production of hydrogen, chemical instruments and methods, hydrogen, etc., can solve the problems that have not been reported in the relevant reports, and achieve the effect of concentrating light, reducing heat loss, and heat flux distribution uniform effect

Active Publication Date: 2011-06-22
陕西中核交大超洁能源技术有限公司
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  • Application Information

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

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Embodiment

[0038] Example: Using 0.2 mol / L glucose as a biomass model compound, a biomass supercritical water gasification hydrogen production experiment was carried out in the absorption reactor. Experimental location: Xi'an, 108°55' east longitude, 34°15' north latitude, the average direct solar radiation intensity of the day was 720w / m 2 The tube length of the serpentine tube flow reactor is 30m, and the length ratio of the preheating section and the reaction section is 0.6; the mass flow rates of the preheated water and the biomass raw material slurry are 3.6kg / h and 1.2kg / h respectively; the fluid pressure in the reactor is 24MPa; the diameter of the daylight opening of the solar absorber cavity is 250mm; the inclination angle of the solar absorber is 19.4°. Under the above conditions, the reactor achieves continuous and high-efficiency hydrogen production, the gasification rate of glucose exceeds 110%, the highest carbon gasification rate exceeds 77%, and the volume concentration o...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/32C01B3/04
CPCY02E60/364Y02E60/36Y02P20/133Y02P20/54
Inventor 郭烈锦陈敬炜张西民吕友军
Owner 陕西中核交大超洁能源技术有限公司
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