Method for joint production of ethanol, fructose and various by-products using sweet sorghum stalks and corn

A sorghum stalk and sweet sorghum technology, applied in the field of comprehensive industrial deep processing of sweet sorghum stalk and corn, to improve product quality, promote overall profitability, and ensure corn demand

A sorghum stalk and sweet sorghum technology, applied in the field of comprehensive industrial deep processing of sweet sorghum stalk and corn, to improve product quality, promote overall profitability, and ensure corn demand

CN108374024BActive Publication Date: 2021-10-26北海明世科技开发有限公司
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  • Method for joint production of ethanol, fructose and various by-products using sweet sorghum stalks and corn

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, the method for co-producing ethanol, fructose and various by-products with sweet sorghum stalks and corn comprises the following process steps:

[0041] (1) Pretreatment of sweet sorghum stalks: fresh sweet sorghum stalks are crushed and squeezed with special sweet sorghum juicing equipment to obtain sorghum juice with a sugar content of 20.2% and sorghum juice with a water content of 57.5% and a sugar content of 5.1%. Sorghum slag.

[0042] (2) Corn pretreatment: Grinding dry corn granules containing 63.5% starch to obtain corn flour for later use.

[0043] (3) Preparation of fructose syrup and fructose: Sweet sorghum juice is used to prepare fructose syrup and fructose. The fructose includes crystalline fructose and medicinal fructose, and the by-product fructose syrup can be directly used as a product.

[0044] The preparation of high fructose syrup includes the following processes: 1. After the sweet sorghum juice is coarsely filtered by a centr...

Embodiment 2

[0051] In this embodiment, the method for co-producing ethanol, fructose and various by-products with sweet sorghum stalks and corn comprises the following process steps:

[0052] (1) Sweet sorghum stalk pretreatment: Fresh sweet sorghum stalks are crushed and squeezed with special sweet sorghum juicer to obtain sorghum juice with a sugar content of 23.7% and sorghum juice with a water content of 59.6% and a sugar content of 5.4%. Sorghum slag.

[0053] (2) Corn pretreatment: Grinding dry corn granules containing 65.4% starch to obtain corn flour for later use.

[0054] (3) Preparation of fructose syrup and fructose: sweet sorghum juice is used to prepare fructose syrup and fructose, the fructose includes crystalline fructose and medicinal fructose, and the by-product fructose syrup can be directly used as a product;

[0055] The preparation of high fructose syrup includes the following processes: 1. After the sweet sorghum juice is coarsely filtered by a centrifuge, a flat c...

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Abstract

The invention discloses a method for co-producing ethanol, fructose and various by-products with sweet sorghum stalks and corn, comprising the following process steps: (1) pretreatment of sweet sorghum stalks; (2) pretreatment of corn; (3) preparation of fructose syrup and fructose; (4) Preparation of fuel ethanol; (5) Preparation of DDGS and liquefied natural gas; (6) Preparation of silage; (7) Carbon dioxide recovery. The invention uses sweet sorghum stalks and corn as raw materials, which can ensure a more stable source of raw materials for each product, realize the joint production of ethanol, fructose, liquefied natural gas, feed and other products, reduce the energy consumption of final products, and reduce the comprehensive cost of raw materials. High utilization rate, energy saving and environmental protection are of great significance for fully utilizing and transforming the saline-alkali wasteland in Northeast China.

Description

technical field [0001] The invention relates to the technical field of comprehensive industrial deep processing of sweet sorghum stalks and corn, in particular to a method for co-producing ethanol, fructose and various by-products with sweet sorghum stalks and corn. Background technique [0002] sweet sorghum ( Sorghum dochna ) is a variant of grain sorghum belonging to the Gramineae family. It originated in Africa. It was spread to China through India during the Wei and Jin Dynasties. It has been planted for a long time as a feed and sugar crop. It is known as "northern sugarcane". Sweet sorghum has a wide range of uses. It not only produces grain, but also produces sugar and syrup. It can also be used to make wine, alcohol and monosodium glutamate. The fiber can also be used to make paper. It is not only a food crop, but also a cash crop, forage crop, and energy crop. Sweet sorghum is a high-energy crop, and its photosynthetic conversion rate is as high as 18% to 28%. Sw...

Claims

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Application Information

Patent Timeline
26 Oct 2021
Publication
CN108374024B
IPC
C12P7/10; C12P19/12; C12F3/02; A23K30/18; C10L3/08
CPC
A23K30/18; C10L3/08; C10L2200/0469; C12F3/02; C12P7/10; C12P19/12; Y02E50/10; Y02P20/10
Inventors
林树仁; 邓超和