Method for producing product decomposed with subcritical water and apparatus for decomposition treatment with subcritical water

A subcritical water and decomposition treatment technology, which is applied in the direction of using atmospheric pressure to chemically change substances, chemical/physical/physicochemical processes, oxidation treatment of sludge, etc., can solve problems such as difficult to control the decomposition of organic waste

Inactive Publication Date: 2007-02-21
PUBLIC UNIVERSITY CORPORATION OSAKA CITY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is also difficult to control the decomposition of organic waste by this method

Method used

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  • Method for producing product decomposed with subcritical water and apparatus for decomposition treatment with subcritical water
  • Method for producing product decomposed with subcritical water and apparatus for decomposition treatment with subcritical water
  • Method for producing product decomposed with subcritical water and apparatus for decomposition treatment with subcritical water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0093] figure 1 It is a conceptual configuration diagram showing an example of the reaction apparatus according to Embodiment 1 of the present invention. As shown in the figure, this apparatus includes a reaction container 3 , a pressurizing device 1 , a heating device 2 , a cooling pipe 4 , a back pressure valve 5 , a reaction finished product recovery tank 6 , and an exhaust product recovery tank 7 . figure 1 In the device, the heating device 1 is also the mixture introducing device. The reaction vessel 3 is vertical and cylindrical, and is basically installed vertically. An introduction port 8 and a discharge port 9 are provided at the bottom of the reaction vessel 3 . The pressurizing device 1 and the heating device 2 are connected to the introduction port 8 through pipes. In addition, an exhaust recovery tank is connected to the discharge port 8 via a cooling pipe and a back pressure valve 11 . An outlet is provided on the head and side walls of the reaction vessel 3 ...

Embodiment approach 2

[0126] Embodiment 2 is an embodiment in which a secondary reaction container is further installed on the reaction apparatus of Embodiment 1. figure 2 It is a schematic configuration diagram illustrating another example of the subcritical water splitting treatment device of the present invention. figure 2 in, with figure 1 The same symbol on the same part. Such as figure 2 As shown, the secondary reaction container 12 is connected to the outlet 101 of the reaction container 3 via a tube. The secondary reaction containers 12 are respectively connected by tubes. A switching valve is provided on each pipe. The secondary reaction container 12 can be freely switched between series connection and parallel connection by switching the valve. These secondary reaction containers 12 are connected to the cooling pipe through pipes, and further connected to the back pressure valve 5 . In front of the back pressure valve 5, a reaction finished product recovery tank 6 is provided. I...

Embodiment approach 3

[0137] image 3 It is a schematic configuration diagram illustrating another example of the subcritical water splitting treatment device of the present invention. image 3 in, with figure 1 The same parts have the same symbol. Such as image 3 As shown, in the apparatus of this embodiment, there is provided an outlet that can move continuously along the flow direction of the subcritical water in the reaction vessel 3 .

[0138] The movable outlet is composed of a flexible tube 14, a suction part 15 positioned at its front end to inhale the required subcritical water soluble layer, a chain 16 for lifting the above-mentioned flexible tube 14, and a groove that can roll up or put down the chain 16 Internal gear 17 constitutes. The suction part 15 can be fixed at a desired position by adjusting the length of the chain 16 .

[0139] In the example shown in the figure, the flexible tube 14 is inserted from the upper end of the reaction vessel 3 , but may be inserted from the lo...

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Abstract

A method for producing a product decomposed with a subcritical water, which comprises pulverizing a material to be treated in advance into particles, mixing the particles with water to prepare a slurry, pressurizing the slurry with a pressing means (1), heating the pressurized slurry with a heating means (2) to form a slurry in a subcritical state, introducing the slurry in a subcritical state from an introduction port (8) to the bottom of a reaction vessel (3), to form, from the bottom, a fixed layer, a fluidized layer and a layer being dissolved in a subcritical water respectively, and taking out a layer being dissolved in a subcritical water from anyone of the discharge ports (101) to (106) provided at upper and side portions of the reaction vessel (3), wherein the selection of an appropriate port from the above discharge ports allows the adjustment of the residence time of the subcritical water, resulting in the adjustment of the reaction time of the decomposition with the subcritical water.

Description

technical field [0001] The invention relates to a production method of a subcritical water decomposition treatment product and a subcritical water decomposition treatment product production device. Background technique [0002] A method using subcritical water / supercritical water hydrolysis reaction is known as a method for recovering useful substances from waste such as food waste and waste wood. For example, subcritical water and supercritical water are used to decompose cellulose, starch, etc. contained in a large amount in biological cells, decompose them into monosaccharides and oligosaccharides, and recover them. The obtained monosaccharides and oligosaccharides are further subjected to alcohol fermentation or methane fermentation, thereby being converted into ethanol and methane gas which are easier to use (see Patent Document 1). In this method, wood and other wastes are pulverized and granulated in advance, mixed with water to make a slurry, and then decomposed by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/00B01J19/00B09B3/00C02F11/08C08J11/14
CPCY02W30/62
Inventor 吉田弘之
Owner PUBLIC UNIVERSITY CORPORATION OSAKA CITY UNIVERSITY
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