Xylose production process
A production process and technology of xylose, applied in the field of xylose production technology with low energy consumption and low pollution, can solve problems such as high pollution and high energy consumption
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Embodiment 1
[0081] A process for producing xylose, comprising the steps of:
[0082] S1, pre-treatment: take corn cob as raw material, first air selection treatment, then use rolling sieve treatment, and finally wash with water; use air selection to remove corn silk, leaves, plastic bags and other light impurities in corn cob, use rolling Sieve to remove dust, masonry, corn kernels and other large specific gravity impurities in the corn cob, and then use clean water to wash away the residual dust and other impurities in the corn cob;
[0083] S2. Steam explosion pretreatment: Spray hydrochloric acid on the corncobs pretreated in step S1, introduce them into the heated steam explosion chamber, feed saturated steam and air to heat the materials, and maintain them at a certain temperature and pressure for a certain period of time Finally, the pressure is released instantaneously; the hemicellulose, lignin, and cellulose in the corncob are separated, and the hemicellulose is degraded into oli...
Embodiment 2
[0100] A process for producing xylose, comprising the steps of:
[0101] S1, pre-treatment: first wind selection treatment, then use rolling sieve treatment, and finally wash with water; wind selection can remove corn silk, leaves, plastic bags and other light impurities in corncobs, use rolling sieve to remove corncobs Dust, masonry, corn kernels and other large specific gravity impurities, and then use clean water to wash away the residual dust and other impurities in the corn cob;
[0102] S2. Steam explosion pretreatment: Spray hydrochloric acid on the corncobs pretreated in step S1, introduce them into the heated steam explosion chamber, feed saturated steam and air to heat the materials, and maintain them at a certain temperature and pressure for a certain period of time Finally, the pressure is released instantaneously; the hemicellulose, lignin, and cellulose in the corncob are separated, and the hemicellulose is degraded into oligosaccharides (mainly glucosaccharose);...
Embodiment 3
[0119] A process for producing xylose, comprising the steps of:
[0120] S1, pre-treatment: first wind selection treatment, then use rolling sieve treatment, and finally wash with water; wind selection can remove corn silk, leaves, plastic bags and other light impurities in corncobs, use rolling sieve to remove corncobs Dust, masonry, corn kernels and other large specific gravity impurities, and then use clean water to wash away the residual dust and other impurities in the corn cob;
[0121] S2. Steam explosion pretreatment: Spray hydrochloric acid on the corncobs pretreated in step S1, introduce them into the heated steam explosion chamber, feed saturated steam and air to heat the materials, and maintain them at a certain temperature and pressure for a certain period of time Finally, the pressure is released instantaneously; the hemicellulose, lignin, and cellulose in the corncob are separated, and the hemicellulose is degraded into oligosaccharides (mainly glucosaccharose);...
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Abstract
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