Process for producing fuel ethanol by stalk beating method

A technology of fuel ethanol and straw, applied in the direction of biofuels, microorganisms, methods based on microorganisms, etc., can solve the problems of raw material freshness preservation, difficulty in handling large-scale production tasks, difficult problems, etc., to achieve uniform mixing, Effect of shortening fermentation time and reducing cost

Active Publication Date: 2008-11-19
张永北 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Due to the insurmountable limitations of each of the above processes, it is difficult to handle large-scale production tasks in actual production. At...

Method used

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  • Process for producing fuel ethanol by stalk beating method

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Embodiment Construction

[0048] Using straw as raw material figure 1 The production process of fuel ethanol by beating method is shown for the production of fuel ethanol: fresh straw cleaning—cleaning—ozone sterilization—chopping—kneading—beating—(preservation)—adding yeast—preparation Mixing - anaerobic fermentation - rough distillation - rectification - dehydration and other links. The process includes the following ten procedures:

[0049] ①Clean the straw and remove the leaves. The leaves of sweet sorghum are removed by a leaf stripper, and then the straw is stacked neatly.

[0050] ②Use a crane to load the straw into the drum washing machine and wash it for 20 minutes.

[0051] ③ Pour the cleaned straw into the disinfection tank, and sterilize it by soaking in ozone water with a concentration of 100 mg / ton for 20 minutes.

[0052] ④ Use a four-roller knife grass cutter to cut the straw into 8 to 12mm pieces.

[0053] ⑤The broken pieces of straw are sent to the kneading machine to be kneaded i...

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Abstract

The invention relates to a process for making fuel ethanol by means of saccharine straw. The process comprises the following technological flows of fresh straw cleaning up, cleaning, ozone sterilization, chopping, scattering, pulping, (preserving), yeast adding, premixing, anaerobic fermentation, raw distillation, rectification and dewatering, etc., wherein the step of pulping is to crush fresh saccharine straw fiber structure into less than 40 meshes of fiber powder so as to ensure that the juice in straw is completely released. The process is based on slurry and makes a corresponding novel technological program for the storing, preserving, feeding, yeast mixing, fermentation and extraction of ethanol; meanwhile, the process selects a device and a device assembly corresponding to the technological program. Moreover, the process has simple and efficient method, and can increase ethanol output capacity at lower cost.

Description

technical field [0001] The invention relates to a new process for producing fuel ethanol, specifically a process for producing fuel ethanol by using straw such as sugar cane and sweet sorghum straw (hereinafter referred to as sugary straw). Background technique [0002] At present, there are three methods for making fuel ethanol from sugary straw: solid fermentation method, juice extraction method and sugar straw powder method. The main advantages and disadvantages of these three methods are as follows. [0003] The solid fermentation method is a method in which sugary straw is crushed by a kneading cutter, and the straw fragments are used for fermentation. The advantage of this method is that the method is simple, the process is simple, and it is easy to master. However, there are three difficulties in subsequent processing: ① It is difficult to mix koji in large quantities of solid materials, and it is not easy to mix evenly. The fermentation is uneven and thorough in a ...

Claims

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Application Information

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IPC IPC(8): C12P7/10C12R1/865
CPCY02E50/16Y02E50/10
Inventor 张永北
Owner 张永北
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