CN107558283A - A kind of resource reutilization method of bagasse - Google Patents
A kind of resource reutilization method of bagasse Download PDFInfo
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- CN107558283A CN107558283A CN201710608295.4A CN201710608295A CN107558283A CN 107558283 A CN107558283 A CN 107558283A CN 201710608295 A CN201710608295 A CN 201710608295A CN 107558283 A CN107558283 A CN 107558283A
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- bagasse
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- resource reutilization
- reutilization method
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Abstract
The present invention discloses a kind of resource reutilization method of bagasse.By chemical steaming method paper making pulps are made in bagasse by this method, are specifically comprised the following steps：(1) steam pre-treatment is carried out to bagasse；(2) after step (1) processing, it is sent into boiling vessel, carries out boiling, by bagasse OD wt. basis, steaming preparation is：5~7% sodium hydroxide, 3~4% sodium sulfite, 0.5~1% magnesium sulfate and 0.1~0.2% sodium metasilicate.The inventive method can make full use of the bagasse dead meal in sugar refinery, realize the resource reutilization of bagasse.Compared with existing chemical pulping process, using the inventive method, bagasse true qualities pulp yield is higher, and production cost is low, and black liquor is easier by biochemical treatment.
Description
Technical field
The present invention relates to a kind of resource reutilization method of bagasse.
Background technology
Bagasse is the Main By product of brown sugar production and processing factory, and it contains abundant cellulose, hemicellulose and wooden
Element, it is a kind of extraordinary paper making raw material.
In China, bagasse slurrying mainly has sulfate process, soda processes and Alkaline Sulfite-Anthraquinone Process, with sulfuric acid
Salt method is compared with soda processes, and Alkaline Sulfite-Anthraquinone Process slurrying has that yield is higher, and true qualities pulp brightness is higher, easily bleaches
Advantage, even so, using existing Alkaline Sulfite-Anthraquinone Process, the pulp yield of bagasse typically also only has 60% or so.
The content of the invention
The technical problem to be solved in the present invention is to overcome the defects of existing, there is provided it is a kind of by chemical steaming method by sugarcane
The resource reutilization method of paper making pulps is made in slag.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of resource reutilization method of bagasse, bagasse is made by paper making pulps by chemical steaming method, specific bag
Include following steps：
(1) steam pre-treatment is carried out to bagasse；
(2) after step (1) processing, it is sent into boiling vessel, boiling is carried out, by bagasse OD wt. basis, boiling medicine
Agent is：5~7% sodium hydroxide, 3~4% sodium sulfite, 0.5~1% magnesium sulfate and 0.1~0.2% metasilicic acid
Sodium.
As a preferable technical scheme：During step (1) steam pre-treatment, steam pressure is 0.1~0.5MPa, and the time is
0.5~2 hour.
As a preferable technical scheme：The material Duan Houzai that bagasse is cut into 5~10cm carries out steam pre-treatment.
As a preferable technical scheme：Boiling temperature is 130~140 DEG C, and the time is 1~3 hour.
As a preferable technical scheme：During step (2) boiling, solid-liquid ratio 1: 3~5.
As a preferable technical scheme：During step (2) boiling, by bagasse OD wt. basis, 0.05 is added~
0.07% anthraquinone.
As a preferable technical scheme：During step (2) boiling, by bagasse OD wt. basis, 0.02 is added~
0.04% surfactant.
As a preferable technical scheme：The surfactant is dodecyl sodium sulfate and/or polyoxyethylene nonyl phenyl second
Alkene ether -10.
As a preferable technical scheme：The slurry that step (2) boiling obtains through shove, washing, obtains paper grade (stock) sheet again
Mill base.
The inventive method makes full use of the bagasse dead meal in sugar refinery, realizes the resource reutilization of bagasse.With it is existing
Chemical pulping process compare, using the inventive method, bagasse true qualities pulp yield is higher, and production cost is low, and black liquor is easier
By biochemical treatment.
Embodiment
The preferred embodiments of the present invention are illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
The step of producing paper grade (stock) natural color pulp using discarded bagasse is as follows：
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 2 hours in the case where steam pressure is 0.1MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：5% sodium hydroxide, 3% sodium sulfite, 0.5% magnesium sulfate and 0.1%
Sodium metasilicate, 130 DEG C are warming up to, insulation boiling 1.5 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry.True qualities pulp yield 75.2%, whiteness (ISO) 51.4%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 4988m of brisement of paper.
Embodiment 2
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 1.5 hours in the case where steam pressure is 0.2MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：5.5% sodium hydroxide, 3.5% sodium sulfite, 0.6% magnesium sulfate and
0.15% sodium metasilicate, 135 DEG C are warming up to, insulation boiling 1.5 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 77.4%, whiteness (ISO) 53.1%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 4887m of brisement of paper.
Embodiment 3
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 1 hour in the case where steam pressure is 0.4MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 4, by bagasse
OD wt. basis, concrete medicament system are：6% sodium hydroxide, 4% sodium sulfite, 1% magnesium sulfate and 0.2% it is inclined
Sodium metasilicate, 135 DEG C are warming up to, insulation boiling 1 hour.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 82.6%, whiteness (ISO) 52.6%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 5102m of brisement of paper.
Embodiment 4
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 30 minutes in the case where steam pressure is 0.5MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 5, by bagasse
OD wt. basis, concrete medicament system are：5% sodium hydroxide, 3.4% sodium sulfite, 0.8% magnesium sulfate and 0.17%
Sodium metasilicate, be warming up to 140 DEG C, insulation boiling 70 minutes.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 84.0%, whiteness (ISO) 50.8%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 5018m of brisement of paper.
Embodiment 5
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 2 hours in the case where steam pressure is 0.1MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：7% sodium hydroxide, 4% sodium sulfite, 0.6% magnesium sulfate and 0.12%
Sodium metasilicate, 130 DEG C are warming up to, insulation boiling 2.5 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 79.5%, whiteness (ISO) 51.3%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 4926m of brisement of paper.
Embodiment 6
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 2 hours in the case where steam pressure is 0.1MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：7% sodium hydroxide, 4% sodium sulfite, 0.6% magnesium sulfate, 0.12%
Sodium metasilicate and 0.07% anthraquinone, 130 DEG C are warming up to, insulation boiling 1.2 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 82.4%, whiteness (ISO) 51.6%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 4989m of brisement of paper.
Embodiment 7
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 2 hours in the case where steam pressure is 0.1MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：7% sodium hydroxide, 4% sodium sulfite, 0.6% magnesium sulfate, 0.12%
Sodium metasilicate and 0.02% dodecyl sodium sulfate, 130 DEG C are warming up to, insulation boiling 2.5 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 81.7%, whiteness (ISO) 55.1%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 5028m of brisement of paper.
Embodiment 8
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 2 hours in the case where steam pressure is 0.1MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：7% sodium hydroxide, 4% sodium sulfite, 0.6% magnesium sulfate, 0.12%
Sodium metasilicate and 0.03% NP-10 (NPE -10), 130 DEG C are warming up to, insulation boiling 2.5 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 80.6%, whiteness (ISO) 53.3%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 4996m of brisement of paper.
Embodiment 9
(1) debris being mixed in bagasse is removed first with WATER-WASHING METHOD, is cut into 5~10cm material section.
(2) bagasse is sent into decatize storehouse again, pre-processed 2 hours in the case where steam pressure is 0.1MPa.
(3) boiling vessel and then with conveying worm by bagasse is sent into, adds cooking liquor, solid-liquid ratio 1: 3, by bagasse
OD wt. basis, concrete medicament system are：7% sodium hydroxide, 4% sodium sulfite, 0.6% magnesium sulfate, 0.12%
Sodium metasilicate, 0.05% anthraquinone and 0.02% dodecyl sodium sulfate, 130 DEG C are warming up to, insulation boiling 2.5 hours.
(4) the acroll press washer extruding black liquor of the slurry after boiling, then send drum vacuum pulp washer to wash, that is, obtain true qualities
Slurry, true qualities pulp yield 86.4%, whiteness (ISO) 56.8%.Manufactured paper with pulp into quantification of 100g/m2Outturn (true qualities, no
Add auxiliary agent), a length of 5127m of brisement of paper.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of resource reutilization method of bagasse, bagasse is made by paper making pulps by chemical steaming method, specifically included
Following steps：
(1) steam pre-treatment is carried out to bagasse；
(2) after step (1) processing, it is sent into boiling vessel, carries out boiling, by bagasse OD wt. basis, steaming preparation is：
5~7% sodium hydroxide, 3~4% sodium sulfite, 0.5~1% magnesium sulfate and 0.1~0.2% sodium metasilicate.
2. resource reutilization method according to claim 1, it is characterised in that：During step (1) steam pre-treatment, vapour pressure
Power is 0.1~0.5MPa, and the time is 0.5~2 hour.
3. resource reutilization method according to claim 1, it is characterised in that：After bagasse is cut into 5~10cm material section
Steam pre-treatment is carried out again.
4. resource reutilization method according to claim 1, it is characterised in that：Boiling temperature is 130~140 DEG C, the time
For 1~3 hour.
5. resource reutilization method according to claim 1, it is characterised in that：During step (2) boiling, solid-liquid ratio 1: 3
~5.
6. resource reutilization method according to claim 1, it is characterised in that：During step (2) boiling, by bagasse over dry
Weight meter, add 0.05~0.07% anthraquinone.
7. resource reutilization method according to claim 1, it is characterised in that：During step (2) boiling, by bagasse over dry
Weight meter, add 0.02~0.04% surfactant.
8. resource reutilization method according to claim 1, it is characterised in that：The surfactant is dodecyl sulphur
Sour sodium and/or NPE -10.
9. resource reutilization method according to claim 1, it is characterised in that：The slurry that step (2) boiling obtains passes through again
Shove, washing, obtain paper grade (stock) natural color pulp.
A kind of 10. paper making pulps obtained according to any methods described of claim 1~9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710608295.4A CN107558283A (en) | 2017-07-24 | 2017-07-24 | A kind of resource reutilization method of bagasse |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710608295.4A CN107558283A (en) | 2017-07-24 | 2017-07-24 | A kind of resource reutilization method of bagasse |
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| CN201710608295.4A Pending CN107558283A (en) | 2017-07-24 | 2017-07-24 | A kind of resource reutilization method of bagasse |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215794A (en) * | 2008-01-11 | 2008-07-09 | 晏永祥 | Zero residual base normal-pressure or low-pressure boiling high-concentration pulp preparing method by using base process |
| CN102995475A (en) * | 2012-11-16 | 2013-03-27 | 昆明理工大学 | Extraction method of bagasse cellulose |
| CN105297514A (en) * | 2015-09-18 | 2016-02-03 | 新疆国力源投资有限公司 | Method for preparing sugarcane dreg bleaching pulp |
| CN105297515A (en) * | 2015-09-18 | 2016-02-03 | 新疆国力源投资有限公司 | Method for preparing unbleached pulp from sugarcane bagasse |
-
2017
- 2017-07-24 CN CN201710608295.4A patent/CN107558283A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215794A (en) * | 2008-01-11 | 2008-07-09 | 晏永祥 | Zero residual base normal-pressure or low-pressure boiling high-concentration pulp preparing method by using base process |
| CN102995475A (en) * | 2012-11-16 | 2013-03-27 | 昆明理工大学 | Extraction method of bagasse cellulose |
| CN105297514A (en) * | 2015-09-18 | 2016-02-03 | 新疆国力源投资有限公司 | Method for preparing sugarcane dreg bleaching pulp |
| CN105297515A (en) * | 2015-09-18 | 2016-02-03 | 新疆国力源投资有限公司 | Method for preparing unbleached pulp from sugarcane bagasse |
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Application publication date: 20180109 |
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