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Preprocessing process for bagasse saccharification utilization

A technology for pretreatment and bagasse, applied in the field of solid waste resource utilization, can solve the problems of difficult utilization of biomass energy, high cost, low pretreatment efficiency, etc., and achieves increased specific surface area, low cost, and improved conversion. rate effect

Active Publication Date: 2017-08-11
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many pretreatment methods at present, but there are still problems of high cost and low pretreatment efficiency, which makes it difficult to promote the utilization of biomass energy on a large scale, and further research is needed

Method used

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  • Preprocessing process for bagasse saccharification utilization

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Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: bagasse sample after pretreatment

[0022] The pretreatment process of the present embodiment, the steps are:

[0023] Weigh 10.0000±0.0010g bagasse, add 100.0±0.1mL sodium hydroxide solution with a mass concentration of 7w%, stir evenly, transfer to a constant temperature water bath shaker, pretreat at 50°C for 0.5h, and then add 2g urea, and quickly cooled down to -12°C at a rate of -6°C to -12°C / min, pretreated at a constant temperature for 1.5 hours, filtered to remove the filtrate, and washed the filter residue with distilled water until the washing water was neutral, and the filter residue was dried. Bagasse sample after pretreatment.

Embodiment 2

[0024] Embodiment 2: bagasse sample after pretreatment

[0025] The pretreatment process of the present embodiment, the steps are:

[0026] Weigh 10.0000±0.0010g bagasse, add 100.0±0.1mL sodium hydroxide solution with a mass concentration of 7w%, stir evenly, transfer to a constant temperature water bath shaker, pretreat at 50°C for 1h, and then add 2g urea to it , and quickly cooled down to -12°C at a rate of -6°C to -12°C / min, pretreated at a constant temperature for 1 hour, filtered to remove the filtrate, and washed the filter residue with distilled water until the washing water was neutral, and the filter residue was pretreated after drying Bagasse samples after.

Embodiment 3

[0027] Embodiment 3: bagasse sample after pretreatment

[0028] The pretreatment process of the present embodiment, the steps are:

[0029] Weigh 10.0000±0.0010g bagasse, add 100.0±0.1mL sodium hydroxide solution with a mass concentration of 7w%, stir evenly, transfer to a constant temperature water bath shaker, pretreat at 50°C for 1.5h, and then add 2g urea, and quickly cooled down to -12°C at a rate of -6°C to -12°C / min, pretreated at a constant temperature for 0.5h, filtered to remove the filtrate, and washed the filter residue with distilled water until the washing water was neutral, and the filter residue was dried. Bagasse sample after pretreatment.

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Abstract

The invention discloses a preprocessing process for bagasse saccharification utilization. The preprocessing process includes the steps of firstly, performing first preprocessing, to be more specific, adding a sodium hydroxide solution into bagasse, and performing constant-temperature water-bath preprocessing under 48-52 DEG C for 0.5-1.5 hours to obtain a bagasse solid-liquid mixture after the first preprocessing; secondly, performing second preprocessing, to be more specific, adding urea into the bagasse solid-liquid mixture after the first preprocessing, fast cooling to minus 14 DEG C to minus 10 DEG C, performing constant-temperature preprocessing for 0.5-1.5 hours, filtering to remove filtrate, and drying filter residues to obtain a preprocessed bagasse sample. By the bagasse preprocessing process, the processed bagasse is high in enzymolysis efficiency, high in reducing sugar conversion rate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of solid waste, and more specifically relates to a pretreatment process for saccharification and utilization of bagasse. Background technique [0002] The contradiction between the increasing energy demand of economic development and the gradual reduction of traditional fossil energy has caused people to worry about energy security. At the same time, the greenhouse effect caused by the use of traditional fossil energy has also caused people to worry about the deterioration of the living environment. This situation has prompted intensive research into different renewable energy sources over the past few decades. Biomass is also attracting attention as the only renewable source of organic carbon on earth. Sugarcane, as a perennial plant, is the largest planted crop in the world. It is widely grown in tropical and subtropical regions and utilizes abundant sunlight and carbon dioxide , s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/10C12P7/16C12R1/865
CPCC12P7/10C12P7/16C12P2201/00Y02E50/10
Inventor 周文兵冯伟肖凯朱端卫肖乃东杨庆张超奇
Owner HUAZHONG AGRI UNIV
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