Method for simultaneously obtaining hydrogen and biomass fuel rod by using biomass raw material

A biomass raw material and biomass fuel technology, applied in the direction of cells, electrolysis process, electrolysis components, etc., can solve the problems of low hydrogen production efficiency, high energy consumption, complex process, etc., to reduce energy consumption and water consumption , Effective utilization and cleaning effect of emissions

Inactive Publication Date: 2018-03-23
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, by CO 2 The recycling process is relatively complicated, and the energy consumption is quite high, and the overall hydrogen production efficiency is relatively low. Similarly, it is also necessary to remove carbon dioxide to obtain pure hydrogen

Method used

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  • Method for simultaneously obtaining hydrogen and biomass fuel rod by using biomass raw material
  • Method for simultaneously obtaining hydrogen and biomass fuel rod by using biomass raw material
  • Method for simultaneously obtaining hydrogen and biomass fuel rod by using biomass raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Add 5 grams of dry corn stalks to 100 ml of aqueous solution, and add 3 grams of Fe 2 (SO 4 ) 3 ·7H 2 O, put the mixed solution in a pressure-resistant hydrothermal reactor, and heat it at 5°C min -1 Heat the reactor to 150°C, stay at this temperature for 1 hour, then cool down to room temperature naturally;

[0045] (2) The product after the hydrothermal reaction is subjected to solid-liquid separation, the solid substance is retained in the hydrothermal reaction kettle, and the liquid substance is used as the positive electrode electrolyte;

[0046] (3) Use the liquid after the hydrothermal reaction as the positive electrolyte of the electrolytic cell, use the polymer solid electrolyte as the diaphragm, apply a voltage of 1V, and perform constant voltage electrolysis until the current density is ≤ 1mA cm -2 , while collecting hydrogen at the negative electrode;

[0047] (4) The positive electrode electrolyte after electrolysis is mixed with the solid matter a...

Embodiment 2

[0052] (1) Add 3 grams of dry pine wood powder to 100 ml of aqueous solution, and add 5 grams of FeCl at the same time 3 ·6H 2 O, put the mixed solution in a pressure-resistant hydrothermal reactor, and heat it at 4°C min -1 Heat the reactor to 200°C, stay at this temperature for 2 hours, then cool down to room temperature naturally;

[0053] (2) The product after the hydrothermal reaction is subjected to solid-liquid separation, the solid substance is retained in the hydrothermal reaction kettle, and the liquid substance is used as the positive electrode electrolyte;

[0054] (3) Use the liquid after the hydrothermal reaction as the positive electrolyte of the electrolytic cell, use the polymer solid electrolyte as the diaphragm, apply a voltage of 0.9V, and perform constant voltage electrolysis until the current density is ≤ 1mA cm -2 , while collecting hydrogen at the negative electrode;

[0055] (4) The positive electrode electrolyte after electrolysis is mixed with the...

Embodiment 3

[0060] (1) Add 10 grams of directly harvested lawn grass to 100 ml of water solution, and add 3 grams of VOSO at the same time 4 ·3H 2 O, put the mixed solution in a pressure-resistant hydrothermal reactor, and heat it at 3°C ​​min -1 Heat the reactor to 180°C, stay at this temperature for 3 hours, then cool down to room temperature naturally;

[0061] (2) The product after the hydrothermal reaction is subjected to solid-liquid separation, the solid substance is retained in the hydrothermal reaction kettle, and the liquid substance is used as the positive electrode electrolyte;

[0062] (3) Use the liquid after the hydrothermal reaction as the positive electrolyte of the electrolytic cell, use the polymer solid electrolyte as the diaphragm, apply a voltage of 1.5V, and perform constant voltage electrolysis until the current density is ≤ 1mA cm -2 , while collecting hydrogen at the negative electrode;

[0063] (4) The positive electrode electrolyte after electrolysis is mixe...

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Abstract

The invention relates to a method for united circulation of biomass hydrothermal carbonization and electrolytic hydrogen production, and particularly relates to the method for simultaneously obtaininghydrogen and a biomass fuel rod by using a biomass raw material. The method comprises the following steps: (1) mixing the biomass raw material, an oxidant and water, heating at a constant speed, andperforming hydrothermal reaction; (2) performing solid and liquid separation on products generated after the hydrothermal reaction; (3) performing electrochemical reaction by taking the liquid obtained after the hydrothermal reaction in the step (2) as an anode, collecting hydrogen and obtaining anode electrolyte after electrolysis is completed; (4) mixing the anode electrolyte obtained after electrolysis in the step (3) with a solid substance obtained after the hydrothermal reaction in the step (2), and performing hydrothermal reaction again; (5) repeating the steps (2) to (4) until no hydrogen is collected in the step (3); and (6) washing and drying the solid products generated in the hydrothermal reaction in the step (4) and pressing to form the fuel rod. By directly utilizing the biomass raw material, the method disclosed by the invention creatively opens up a way and a method for clean utilization of biomass energy.

Description

technical field [0001] The invention relates to a combined cycle method of biomass hydrothermal carbonization and electrolytic hydrogen production, in particular to a method for simultaneously obtaining hydrogen and biomass fuel rods from biomass raw materials. Background technique [0002] As human society gradually transitions from the current era of carbon economy to the era of low-carbon economy and hydrogen energy economy, people hope to get rid of the excessive dependence on carbon fuels in order to solve the increasingly serious environmental pollution and related social problems caused by it. To this end, the development A series of renewable energy such as solar energy, wind energy, and biomass energy, as well as new technologies such as electric vehicles and fuel cell vehicles, have been developed to meet human pursuit of quality life. [0003] As a "secondary energy source", hydrogen energy is currently mainly derived from fossil fuels, biomass and water. The main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B9/00
CPCC25B1/04C25B9/00Y02E60/36
Inventor 余晴春隋升蒋峰景屠恒勇
Owner SHANGHAI JIAO TONG UNIV
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