Pretreatment method of cellulosic ethanol feedstock
A cellulosic ethanol, pretreatment technology, applied in the direction of fiber raw material treatment, textiles and papermaking, etc., can solve the problems affecting the treatment
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[0032] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0033] The present invention provides a kind of pretreatment method of cellulosic ethanol raw material, wherein, this pretreatment method comprises the following steps:
[0034] Step 1. Add the cellulose raw material to the screw feeder 20 for extrusion dehydration to remove at least a part of the water content of the cellulose raw material, so as to obtain a dense plug. The weight of the dry matter in the plug is The ratio is 20% to 50%;
[0035] Step 2, feeding the plug into the primary steam container 30, then breaking it up, and performing primary steam treatment on the dispersed cellulose raw material, the pH value of the steam in the primary steam contain...
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