CN104073522A - Technology for preparing methane through steam explosion sugarcane leaves dry-method anaerobic fermentation - Google Patents
Technology for preparing methane through steam explosion sugarcane leaves dry-method anaerobic fermentation Download PDFInfo
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- CN104073522A CN104073522A CN201410349471.3A CN201410349471A CN104073522A CN 104073522 A CN104073522 A CN 104073522A CN 201410349471 A CN201410349471 A CN 201410349471A CN 104073522 A CN104073522 A CN 104073522A
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- sacchari sinensis
- caulis sacchari
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention relates to a technology for preparing methane through steam explosion sugarcane leaves dry-method anaerobic fermentation, and belongs to the field of agricultural solid waste utilization for energy. The technology comprises the steps as follows: firstly, sugarcane leaves are positioned in a sealed steam explosion device, after introducing saturated steam, the steam explosion pressure is controlled to reduce instantly for obtaining steam explosion sugarcane leaves materials; secondly, a certain amount of pig manure and methane fermentation accelerators, as well as 30% to 40% of inoculum are put into the sugarcane leaves subjected to the steam explosion in sequence as materials of which the C/N is adjusted to 25 to 1 through ammonium bicarbonate and the dry matter density of the materials is adjusted to 22% to 25% through adding water, and then be stirred uniformly and canned for intermediate temperature anaerobic fermentation, and methane is produced. Through adopting the steam explosion method for pre-processing the sugarcane leaves, the internal structure of the sugarcane leaves are damaged effectively so as to generate the breakage and separation of cellulose, hemicellulose and lignin structure, promote the digestion utilization of the fermenting on microorganism of methane in dry-method anaerobic fermentation against the sugarcane leaves, and the fermenting time is shortened by about 15 days, the methane yield is increased by 20%, and besides, the method is simple in technology and low in cost.
Description
Technical field
The present invention relates to a kind of method that biological organic substance feedstock conversion is become to combustible gas, be specifically related to the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of a kind of vapour and prepare the technique of biogas, be a kind of technique taking Caulis Sacchari sinensis leaf as the dry ferment preparation of sludge gas of raw material, belong to agricultural solid residue recovery energy technical field.
Background technology
Caulis Sacchari sinensis leaf is the large agricultural stalk resource in China torrid areas, and a year discarded Caulis Sacchari sinensis leaf total amount reaches 2 000 ten thousand tons, has the features such as output is large, concentrate in the place of production, be easy to purchase, cost is low.Current most Caulis Sacchari sinensis leaf, by on-site incineration, except causing serious atmospheric pollution, has also caused great potential safety hazard.In Caulis Sacchari sinensis leaf, nutritive substance is abundant, and compared with maize straw, carbon content is high 10 percentage points, is the good raw material of producing biogas.Discarded Caulis Sacchari sinensis leaf can be changed into biomass energy by dry anaerobic fermentation technology, and then replace rural area fuel wood, also can be used for combustion heat supplying or generating, have positive effect for obtaining novel energy and controlling countryside wastes pollution.
But early-stage Study finds, Caulis Sacchari sinensis leaf aerogenesis toggle speed is slow, and gas production rate is on the low side, by the material after fermentation ends is analyzed, finds that raw material is subdued rate very low, and most of Caulis Sacchari sinensis leaf is not decomposed, raw material decompose utilize not thorough.Cause quality and the composition relation of the low reason of Caulis Sacchari sinensis leaf biogas transformation efficiency and Caulis Sacchari sinensis leaf very big.The carbohydrate of blue or green wet crop remaines in wherein with soluble state, be easy to efficiently turn, Caulis Sacchari sinensis leaf is different, Caulis Sacchari sinensis leaf remaining after normal harvest sugarcane is more dry, general water content is 13% left and right, main organic composition is Mierocrystalline cellulose, hemicellulose, xylogen, pectin and wax etc., and quality is light, is difficult to decompose; Particularly the wax on surface, is not easy to be destroyed by Institute of Micro-biology.In order to improve the rate of decomposition of straw, scientific research personnel is devoted to, by physics, chemistry and aerobic biological approach, stalk is carried out to pre-treatment always, seeks the optimum control conditions such as the temperature, raw material mixture, concentration of anaerobic process simultaneously, has all obtained certain effect.
Jiao Jing, Wang Jinli, the people such as Zheng Yong are taking Caulis Sacchari sinensis leaf as fermentation raw material, and the pre-treatment of research cellulase is produced biogas influential effect to Caulis Sacchari sinensis leaf.Result shows, gas production rate increases along with the increase of cellulase consumption, in the time that cellulase addition is 1%, gas production rate maximum, can reach 641 L, now also the highest (cellulase pre-treatment Caulis Sacchari sinensis leaf product biogas research of cellulose degradation rate, guangdong agricultural science, the 24th phase in 2012); And they have further studied acid, alkali pre-treatment to Caulis Sacchari sinensis leaf producing methane by using dry anaerobic digestion influential effect, test-results shows, acid, alkali pre-treatment all can improve Caulis Sacchari sinensis leaf biogas output, the pretreated gas production rate of alkali is totally better than sour pre-treatment, methane content is the relatively high (impact of Chemical Pretreatment on Caulis Sacchari sinensis leaf producing methane through anaerobic fermentation also, tropical crops journal, 35(4 in 2014): 779-783).
But enzyme process cost is relatively high, acid system and alkaline process cause the pollution to environment after processing, the invention provides the quick-fried Caulis Sacchari sinensis leaf producing methane by using dry anaerobic digestion of a kind of vapour technique, the quick-fried pre-treatment of vapour can effectively destroy Caulis Sacchari sinensis leaf internal structure, make Mierocrystalline cellulose, hemicellulose, lignin structure rupture, separate, the digestibility and utilization of methane fermentating microorganism to Caulis Sacchari sinensis leaf while having promoted dry anaerobic fermentation, can obtain and start faster speed and higher biogas output.
Summary of the invention
The object of this invention is to provide the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of a kind of vapour and prepare the technique of biogas, accelerate the degraded of Caulis Sacchari sinensis leaf cellulose substances, improve fermentation starting speed and biogas output.
In order to address the above problem, the technical solution adopted in the present invention is:
The quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, comprises the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, control vapour detonation pressure power and time, after moment step-down, obtain the quick-fried Caulis Sacchari sinensis leaf material of vapour;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, add a certain amount of pig manure and biogas fermentation accelerant, add again the inoculum of Caulis Sacchari sinensis leaf volume 30% ~ 40%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration, after stirring, intermediate temperature anaerobic fermentation production biogas is carried out in tinning, and fermentation time is 10-20 days.
In the quick-fried processing Caulis Sacchari sinensis leaf of described vapour technique, vapour detonation pressure power is 2.5 ~ 4.0 MPa, and the dwell time is 3 ~ 10min;
In described dry anaerobic fermentation technique, the pig manure of interpolation is 1 ~ 2:1 with the dry matter weight of Caulis Sacchari sinensis leaf ratio; Biogas fermentation accelerant is " Rui Laite " microorganism decomposition agent that Chengdu Synthesis Biological Technology Co., Ltd. produces, and consumption is 0.01 ‰ ~ 0.015 ‰ of Caulis Sacchari sinensis leaf quality; After stirring, the TS content of tinning material is 22% ~ 25%; Leavening temperature is 37 ~ 39 DEG C.
Beneficial effect of the present invention is:
(1) adopt the quick-fried method of vapour to carry out pre-treatment to Caulis Sacchari sinensis leaf, can effectively destroy Caulis Sacchari sinensis leaf internal structure, make Mierocrystalline cellulose, hemicellulose, lignin structure rupture, separate, the digestibility and utilization of methane fermentating microorganism to Caulis Sacchari sinensis leaf while having promoted dry anaerobic fermentation, fermentation time shortens to about 15 days from traditional zymotic for more than 20 day, and biogas output has improved 20%;
(2) the method pretreatment time is short, simple to operate, can accomplish scale production, and in improving Caulis Sacchari sinensis leaf utilization ratio, produces clean energy, for directly burning or generating, has greatly improved the problem of utilizing of Caulis Sacchari sinensis leaf waste.
Embodiment
Below by embodiment, the present invention is described in further details, these embodiment are only used for illustrating the present invention, do not limit the scope of the invention.
embodiment 1
The quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, comprises the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, controlling vapour detonation pressure power is 2.5MPa, and the dwell time is 10min, obtains the quick-fried Caulis Sacchari sinensis leaf material of vapour after moment step-down;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, adding with the dry matter weight of Caulis Sacchari sinensis leaf is 0.015 ‰ biogas fermentation accelerant than the pig manure for 1:1 and mass percent, add again the inoculum of Caulis Sacchari sinensis leaf volume 40%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration to 25%, tinning after stirring is carried out intermediate temperature anaerobic fermentation and is produced biogas under 39 DEG C of conditions, and fermentation time is 10 days.
embodiment 2
The quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, comprises the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, controlling vapour detonation pressure power is 4.0 MPa, and the dwell time is 3min, obtains the quick-fried Caulis Sacchari sinensis leaf material of vapour after moment step-down;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, adding with the dry matter weight of Caulis Sacchari sinensis leaf is 0.01 ‰ biogas fermentation accelerant than the pig manure for 2:1 and mass percent, add again the inoculum of Caulis Sacchari sinensis leaf volume 30%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration to 22%, tinning after stirring is carried out intermediate temperature anaerobic fermentation and is produced biogas under 37 DEG C of conditions, and fermentation time is 20 days.
embodiment 3
The quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, comprises the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, controlling vapour detonation pressure power is 3.0 MPa, and the dwell time is 5min, obtains the quick-fried Caulis Sacchari sinensis leaf material of vapour after moment step-down;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, adding with the dry matter weight of Caulis Sacchari sinensis leaf is 0.01 ‰ biogas fermentation accelerant than the pig manure for 1:1 and mass percent, add again the inoculum of Caulis Sacchari sinensis leaf volume 35%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration to 23%, tinning after stirring is carried out intermediate temperature anaerobic fermentation and is produced biogas under 38 DEG C of conditions, and fermentation time is 15 days.
embodiment 4
The quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, comprises the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, controlling vapour detonation pressure power is 3.5MPa, and the dwell time is 5min, obtains the quick-fried Caulis Sacchari sinensis leaf material of vapour after moment step-down;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, adding with the dry matter weight of Caulis Sacchari sinensis leaf is 0.015 ‰ biogas fermentation accelerant than the pig manure for 1.5:1 and mass percent, add again the inoculum of Caulis Sacchari sinensis leaf volume 30%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration to 23%, tinning after stirring is carried out intermediate temperature anaerobic fermentation and is produced biogas under 37 DEG C of conditions, and fermentation time is 13 days.
embodiment 5
The quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, comprises the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, controlling vapour detonation pressure power is 4.0 MPa, and the dwell time is 8min, obtains the quick-fried Caulis Sacchari sinensis leaf material of vapour after moment step-down;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, adding with the dry matter weight of Caulis Sacchari sinensis leaf is 0.01 ‰ biogas fermentation accelerant than the pig manure for 2:1 and mass percent, add again the inoculum of Caulis Sacchari sinensis leaf volume 40%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration to 22%, tinning after stirring is carried out intermediate temperature anaerobic fermentation and is produced biogas under 37 DEG C of conditions, and fermentation time is 17 days.
Claims (5)
1. the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of vapour is prepared a technique for biogas, it is characterized in that: comprise the steps:
(1) the quick-fried processing Caulis Sacchari sinensis leaf of vapour
Caulis Sacchari sinensis leaf is placed in to the quick-fried device of airtight vapour, passes into saturated vapor, control vapour detonation pressure power and time, after moment step-down, obtain the quick-fried Caulis Sacchari sinensis leaf material of vapour;
(2) dry anaerobic fermentation
Through the Caulis Sacchari sinensis leaf of the quick-fried processing of vapour, add a certain amount of pig manure and biogas fermentation accelerant, add again the inoculum of Caulis Sacchari sinensis leaf volume 30% ~ 40%, regulating material C/N with bicarbonate of ammonia is 25:1, add water and regulate material dry substance concentration, after stirring, intermediate temperature anaerobic fermentation production biogas is carried out in tinning, and fermentation time is 10-20 days.
2. the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of a kind of vapour according to claim 1 is prepared the technique of biogas, it is characterized in that: the described vapour detonation pressure power of step (1) is 2.5 ~ 4.0 MPa, and the described time is 3 ~ 10min.
3. the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of a kind of vapour according to claim 1 is prepared the technique of biogas, it is characterized in that: the described pig manure of interpolation and the dry matter weight of the Caulis Sacchari sinensis leaf ratio of step (2) is 1 ~ 2:1.
4. the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of a kind of vapour according to claim 1 is prepared the technique of biogas, it is characterized in that: the described biogas fermentation accelerant of step (2) is " Rui Laite " microorganism decomposition agent that Chengdu Synthesis Biological Technology Co., Ltd. produces, and consumption is 0.01 ‰ ~ 0.015 ‰ of Caulis Sacchari sinensis leaf quality.
5. the quick-fried Caulis Sacchari sinensis leaf dry anaerobic fermentation of a kind of vapour according to claim 1 is prepared the technique of biogas, it is characterized in that: after what step (2) was described stir, the TS content of tinning material is 22% ~ 25%; Leavening temperature is 37 ~ 39 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800889A (en) * | 2016-04-28 | 2016-07-27 | 农业部沼气科学研究所 | Method for producing methane by strengthening anaerobic dry fermentation of dehydrated sludge |
| CN109680013A (en) * | 2017-09-30 | 2019-04-26 | 江西省农业科学院农业应用微生物研究所（江西省农村能源研究中心） | A kind of more raw material hybrid anaerobic fermentation methods of high concentration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575618A (en) * | 2009-04-24 | 2009-11-11 | 中国热带农业科学院农业机械研究所 | Method for preparing biogas by dry-fermenting sugarcane leaves as raw materials |
| CN103834693A (en) * | 2012-11-20 | 2014-06-04 | 王炳广 | Method used for producing biogas by taking sugarcane leaves as raw material |
-
2014
- 2014-07-22 CN CN201410349471.3A patent/CN104073522A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575618A (en) * | 2009-04-24 | 2009-11-11 | 中国热带农业科学院农业机械研究所 | Method for preparing biogas by dry-fermenting sugarcane leaves as raw materials |
| CN103834693A (en) * | 2012-11-20 | 2014-06-04 | 王炳广 | Method used for producing biogas by taking sugarcane leaves as raw material |
Non-Patent Citations (3)
| Title |
|---|
| 杨春和: "汽爆技术在农作物秸秆利用中的研究现状与进展", 《安徽农业科学》 * |
| 杨炳珑: "我国获发明专利权的微生物催腐剂"瑞莱特"诞生", 《乡镇论坛》 * |
| 黄春红: "瑞莱特微生物催腐剂在甘蔗叶中的腐熟试验", 《现代农业科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800889A (en) * | 2016-04-28 | 2016-07-27 | 农业部沼气科学研究所 | Method for producing methane by strengthening anaerobic dry fermentation of dehydrated sludge |
| CN105800889B (en) * | 2016-04-28 | 2019-05-10 | 农业部沼气科学研究所 | A method of strengthening dewatered sludge anaerobic dry fermentation methane phase |
| CN109680013A (en) * | 2017-09-30 | 2019-04-26 | 江西省农业科学院农业应用微生物研究所（江西省农村能源研究中心） | A kind of more raw material hybrid anaerobic fermentation methods of high concentration |
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Application publication date: 20141001 |