Biomass briquette and preparation method thereof
A technology for forming fuels and biomass raw materials, which is applied in the fields of biofuels, waste fuels, and fuels, can solve the problems of difficult decomposition of organic solvents, low energy utilization rate, and low fixed carbon yield, etc., and achieves high fixed carbon content and energy. The effect of high utilization rate and low moisture content
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Embodiment 1
[0027] The preparation method of the biomass briquette of the present embodiment is as follows:
[0028] Step 1, soaking, soaking corn stalks with 0.5% acetic acid solution with a mass fraction of 0.5% for 80 min at a solid-liquid ratio of 1:10 (g:ml) between corn stalks and acetic acid to obtain soaked corn stalks;
[0029] Step 2, compressing, compressing the soaked corn stalks under the condition of a pressure of 20 MPa to obtain compressed corn stalks with a water content of 60%;
[0030] Step 3, friction pyrolysis, the compressed corn stalks are put into a high-temperature and high-pressure reactor, and nitrogen gas is introduced into the reactor, and the internal combustion engine drives the internal helical structure of the reactor to rotate, so that the compressed corn stalks are rubbed, and the compressed corn stalks The particles of corn stalks rub against each other to generate heat, so that the temperature in the reactor rises to 300°C, and the pressure rises to 3M...
Embodiment 2
[0036] The preparation method of the biomass briquette of the present embodiment is as follows:
[0037] Step 1, soaking, soaking the wood chips with an acetic acid solution with a mass fraction of 3% and a solid-to-liquid ratio of wood chips to acetic acid of 1:30 (g:ml) for 50 minutes to obtain soaked wood chips;
[0038] Step 2, compressing, compressing the soaked wood chips under the condition of a pressure of 15 MPa to obtain compressed wood chips with a water content of 35%;
[0039] Step 3, friction pyrolysis, put the compressed wood chips into a high-temperature and high-pressure reactor, and after feeding nitrogen into the reactor, the internal combustion engine drives the internal helical structure of the reactor to rotate, causing the compressed wood chips to rub, and the compressed wood chips The particles rub against each other to generate heat, so that the temperature in the reactor rises to 400°C, and the pressure rises to 5MPa. The moisture in the compressed wo...
Embodiment 3
[0045] The preparation method of the biomass briquette of the present embodiment is as follows:
[0046] Step 1, soaking, soaking the rice husk with a formic acid solution with a mass fraction of 4% and a solid-to-liquid ratio of rice husk to acetic acid of 1:50 (g:ml) for 30 minutes to obtain soaked rice husk;
[0047] Step 2, compressing, compressing the soaked rice husks under the condition of a pressure of 45 MPa to obtain compressed rice husks with a water content of 15%;
[0048]Step 3, frictional pyrolysis, the compressed rice husk is put into a high temperature and high pressure reactor, and after helium gas is introduced into the reactor, the internal combustion engine drives the internal helical structure of the reactor to rotate, so that the compressed rice husk is rubbed and compressed. The particles of the rice husk rub against each other to generate heat, so that the temperature in the reactor rises to 350°C, and the pressure rises to 4MPa. The water in the compr...
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