Industrial thermo-operated monosaccharide and alcohol ester hydrolysis technology system for plant straw

Abstract

The invention discloses an industrial thermo-operated monosaccharide and alcohol ester hydrolysis technology system for plant straw. The system is mainly composed of a straw cutting machine, a wind power dust collector, a steam explosion device, an intermediate-temperature hydrolyzer, a hot water catalyst system, a first solid-liquid separator, a paper pulp preparing system, a concentrating and crystallizing system, a first lignin system, a distilling and drying system, a pentose system, a high-temperature hydrolyzer, a second solid-liquid separator, a crystallizing and separating system, a second lignin system, a cellulose system, an intermediate preheater, a critical heat source system, a critical hydrolyzer, a flashing desuperheater, a purifying and concentrating system, a hexose system, a hexosidase yeast system, a distilling rectifying system, an ethyl alcohol or grease system, a system of fertilizer fuel prepared with residues and a heat energy solvent and catalyst recovering system. In the system, a first composing raw material treatment technology, a second intermediate-temperature hydrolysis technology, a third high-temperature hydrolysis technology, a fourth critical hydrolysis technology, a fifth enzyme yeast hydrolyzing technology and a sixth energy-saving environmentally-friendly technology are involved. The system has the advantages that monosaccharide and alcoholester are prepared industrially from the straw, and in this way, straw recycling is performed easily on a large scale and with a low cost; in the straw thermo-operated hydrolysis technology, traditional acid-bases and the pollution and a low effect during enzyme digestion are abandoned.

Description

technical field [0001] The invention relates to the fields of utilization of agricultural plant straws, biomass resources and circular economy, in particular to a process system for industrialized thermal hydrolysis of monosaccharides and alcohols and fats of plant straws. technical background [0002] At present, domestic crop straw utilization is not only an important way to increase the value of agricultural production, but also a powerful measure to stop straw burning and control environmental pollution; [0003] The essence of crop straw is a huge biomass resource and edible material, commonly known as "one catty of grain, two catties of straw" and "two catties of straw, one catty of grain"; [0004] Plant and crop straw are mainly composed of three components: cellulose, hemicellulose and lignin, all of which are important raw materials for industrial and agricultural production, and have a wide range of human life and production application values; [0005] The curre...

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Problems solved by technology

[0008] One is that the mixed enzyme fermentation efficiency of straw cellulose and hemicellulose is low, resulting in high cost of lignocellulose enzymatic hydrolysis and unsatisfactory pentose sugar fermentation, resulting in the existing straw lignocellulosic enzymatic fermentation of sugar alcohols are all small-scale Experiments, and are doing everything possible to seek industrialized large-scale technology and routes;

[0009] The second is the current straw pretreatment, which still adopts the traditional acid or alkali hydrolysis process, which produces a large amount of derivatives and sewage. The environmental protection treatment technology is very complicated, and the environmental protection cost is also very expensive

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