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A technology for collection and energy comprehensive utilization of steam-exploded straw materials

A technology of steam-exploding straw and materials, which is applied in the field of steam-explosion pretreatment of cellulosic ethanol production process, can solve problems such as unproposed process methods, and achieve the effect of simple operation, good effect and reasonable process design

Inactive Publication Date: 2014-10-15
河南天冠纤维乙醇有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no systematic approach has been proposed

Method used

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  • A technology for collection and energy comprehensive utilization of steam-exploded straw materials

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Experimental program
Comparison scheme
Effect test

specific Embodiment 2

[0034] like figure 1 Shown, the present invention adopts following technical scheme to realize above-mentioned purpose, and its concrete steps are as follows:

[0035] (1) The straw crushed to 40-80 mm is sent into the blasting container 1 by the loader;

[0036] (2) High-pressure steam with a pressure of 1.2-4.0 MPa is introduced into the blasting container 1;

[0037] (3) Keep the pressure on the blasting vessel 1 for 10-120 minutes;

[0038] (4) Open the blasting container 1 to eject the material to realize the separation of material and steam;

[0039] (5) Enter the steam obtained in step (4) into the decompression chamber 2, and the steam containing organic molecules is discharged from the top of the decompression chamber 2 and enters the condenser 3;

[0040] (6) The steam obtained in step (5) passes through the condenser 3 and becomes liquid, and the liquid is sent to the sewage treatment process, and the tail gas generated enters the absorption tower 4;

[004...

specific Embodiment 3

[0044] like figure 1 Shown, the present invention adopts following technical scheme to realize above-mentioned purpose, and its concrete steps are as follows:

[0045] (1) The straw that has been crushed to 20-100 mm is sent into the blasting container 1 by the loader;

[0046] (2) High-pressure steam with a pressure of 2.2-3.0 MPa is introduced into the blasting container 1;

[0047] (3) Keep the pressure on the blasting vessel 1 for 60-70 minutes;

[0048] (4) Open the blasting container 1 to eject the material to realize the separation of material and steam;

[0049] (5) Enter the steam obtained in step (4) into the decompression chamber 2, and the steam containing organic molecules is discharged from the top of the decompression chamber 2 and enters the condenser 3;

[0050] (6) The steam obtained in step (5) passes through the condenser 3 and becomes liquid, and the liquid is sent to the sewage treatment process, and the tail gas generated enters the absorption to...

specific Embodiment 4

[0054] like figure 1 Shown, the present invention adopts following technical scheme to realize above-mentioned purpose, and its concrete steps are as follows:

[0055] (1) The straw that has been crushed to 40-80 mm is sent to the blasting container 1 through the belt conveyor 5;

[0056] (2) High-pressure steam with a pressure of 1.2-4.0 MPa is introduced into the blasting vessel 1;

[0057] (3) Keep the pressure on the blasting vessel 1 for 40-90 minutes;

[0058] (4) Open the blasting container 1 to eject the material to realize the separation of material and steam;

[0059] (5) Enter the steam obtained in step (4) into the decompression chamber 2, and the steam containing organic molecules is discharged from the top of the decompression chamber 2 and enters the condenser 3;

[0060] (6) The steam obtained in step (5) passes through the condenser 3 and becomes liquid, and the liquid is sent to the sewage treatment process, and the tail gas generated enters the absorpt...

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Abstract

The invention belongs to the technical field of steam explosion pretreatment of fiber ethanol production process, and discloses a process for collecting and energy comprehensive utilization of steam-exploded straw materials. The specific steps are as follows: (1) The crushed straw is sent into the blasting container through a mechanical device; ( 2) Introduce high-pressure steam with a pressure of 1.2-4.0MPa into the blasting container; (3) Keep the pressure on the blasting container for 10-120 minutes; (4) Open the blasting container to eject the material to realize the separation of material and steam; The steam obtained in step (4) enters the decompression chamber, and the steam containing organic molecules is discharged from the top of the decompression chamber and enters the condenser; (6) The steam obtained in step (5) passes through the condenser and becomes liquid, and the liquid is sent to the sewage treatment process, The tail gas enters the absorption tower for subsequent tail gas absorption. The invention enables the scientific collection and utilization of by-products of steam explosion, fully utilizes the heat energy of tail gas, and is easy to popularize and use.

Description

Technical field [0001] The invention is the field of steam blasting processing technology in the production process of fiber ethanol, which specializes in the collection and energy comprehensive utilization process of a steam -explosive straw material. Background technique [0002] In the production process of fibrine, straw fiber raw materials need to be pre -processed to further process it into ethanol.Steam blasting treatment has the advantages of simple processing process and low energy consumption.During the steam blasting process, various organic substances such as methic acid, acetic acid, and brachytal formation were generated due to high temperature.If the residual steam is discharged directly after the blasting, environmental pollution and energy waste will occur.How to solve the problem of environmental pollution in the process of pre -treatment of straw raw materials and how to reduce energy consumption is one of the key issues of straw pre -treatment process during t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/10
CPCY02E50/16Y02E50/10
Inventor 马晓建阎德冉王林风米锡耿王铎
Owner 河南天冠纤维乙醇有限公司
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