CN104620777B - A kind of method determining perennial biogas dedicated energy plant optimal harvest time - Google Patents
A kind of method determining perennial biogas dedicated energy plant optimal harvest time Download PDFInfo
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- CN104620777B CN104620777B CN201510062069.1A CN201510062069A CN104620777B CN 104620777 B CN104620777 B CN 104620777B CN 201510062069 A CN201510062069 A CN 201510062069A CN 104620777 B CN104620777 B CN 104620777B
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Abstract
The invention discloses a kind of method determining perennial biogas dedicated energy plant optimal harvest time, belong to biomass energy source domain.The present invention uses the method that perennial energy-source plant subregion gathers in, and combines dry matter production mensuration and independent biogas fermentation effect analysis, determines perennial biogas dedicated energy plant optimal harvest time.The present invention is easy and simple to handle, credible result, has good actual production promotional value.
Description
Technical field
The invention belongs to biomass energy source domain, relate to gathering of biogas energy plant, be specifically related to a kind of method determining perennial biogas dedicated energy plant optimal harvest time.
Background technology
Along with the exhaustion increasingly of the Fossil fuels such as oil, coal, natural gas, the development and utilization of regenerative resource especially biomass energy obtains the attention of countries in the world day by day.Biogas is a kind of important regenerative resource, has flexible and changeable application value realistic and good conditions for sports industry, has gradually obtained the concern of people.
Utilize the existing numerous studies of energy-source plant producing methane through anaerobic fermentation, as a kind of with Pennisetum hydridum be raw material production biogas method (200910029204.7), a kind of prepare the method (200610116145.3) of biogas, planting huge fungous grass using Spartina alterniflora for fermenting raw materials and produce the method (200910112261.1) etc. of biogas as biomass energy.But these methods merely relate to the technique of energy-source plant fermentation methane production, do not provide the method determining energy-source plant optimal harvest time.
Perennial biogas dedicated energy plant means that a class is specifically designed to the energy-source plant of biogas fermentation, and this kind of plant can be gathered in more than 10 years continuously, and economic benefit is high.But owing to can not accurately select optimal collection period, current people gather in biogas dedicated energy plant and judge simply by virtue of ordinary experience, the most just the maximum production capacity in land area of one unit can not be given full play to, it is impossible to obtain the maximum economic benefit of perennial biogas dedicated energy plant.Therefore, for energy crop biogas engineering, determine that the optimal harvest time of perennial biogas dedicated energy plant has important function.
Summary of the invention
It is an object of the invention to provide a kind of method determining perennial biogas dedicated energy plant optimal harvest time, use the method that perennial energy-source plant subregion gathers in, and combine dry matter production mensuration and independent biogas fermentation effect analysis, determine perennial biogas dedicated energy plant optimal harvest time.The present invention is easy and simple to handle, credible result, has good actual production promotional value.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of method determining perennial biogas dedicated energy plant optimal harvest time comprises the following steps:
(1) after perennial biogas dedicated energy plant growing 1 ~ 3 year, choose 5 ~ 20 subregions of the same area at energy-source plant growing area, when average daily temperature reaches this energy-source plant growth lower limit, the energy-source plant of whole growing area is gathered in；The energy-source plant every set time section one subregion of harvesting was started from the same day；
(2) first measure total fresh weight of the produced plant of whole subregion, then take out after a part measures fresh weight and pulverize, then dry its dry weight of mensuration, calculate the total solids content of plant, then calculate the gross dry weight of whole subregion output energy-source plant；Gross dry weight according to whole subregion output energy-source plant and vegetation period unit of account growth time in the dry matter production of unit are；
(3) energy-source plant of harvesting being crushed to a length of less than 15 centimetres, carry out ensiling process, the raw material ensiling time of different batches harvesting is identical, and ensiling is dried to moisture less than 15% after terminating, be stored in less than 20 DEG C；Or without ensiling, convection drying, to moisture less than 15%, is stored in less than 20 DEG C；
(4) different time is gathered in and the raw material that preserves carries out biogas fermentation, using biogas slurry or biogas residue as inoculum, total solid concentration 0.5 ~ 25%, fermentation temperature 30 ~ 60 DEG C, fermentation time 10 ~ 60 days, fermentation liquid pH=6.5 ~ 8.0, record daily output methane quantity and methane concentration, the methane production that after fermentation ends, unit of account dry accumulated within the whole fermentation phase of every day；
(5) methane production of accumulation after methane production unit of account the produced plant fermentation of growth time unit are accumulated within the whole fermentation phase according to the dry matter production of unit are in the unit growth time of step (2) and the per dry matter of step (4)；
(6) with the growth time corresponding to methane production peak of accumulation after unit growth the produced plant fermentation of unit of time area of step (5) as optimal harvest time.
Described energy-source plant is one or more in Pennisetum plant, Sorghum propinquum, sugar grass, Arundo donax, phragmites communis, Plantula Neyraudiae Reynaudianae, Caulis Sacchari sinensis, Radix sacchari arundinacei, Bi Te, arabian cron, Caulis Miscanthis floriduli, Miscanthus sacchariflorus (Maxim) Benth et Hook f, awns, Dicranopteris dichotoma, Dicranopteris amplachinget Chiu, Arundinella hirta (Thunb.) Tanaka, switchgrass.
The remarkable advantage of the present invention is: the present invention uses the method that perennial energy-source plant subregion gathers in, and combines dry matter production mensuration and independent biogas fermentation effect analysis, determines perennial biogas dedicated energy plant optimal harvest time.The present invention is easy and simple to handle, credible result, has good actual production promotional value.
Detailed description of the invention
Further illustrating the specific implementation method of the present invention below as a example by perennial energy-source plant Jujun grasses, the present invention includes but not limited to following instance.
A kind of method determining perennial biogas dedicated energy plant optimal harvest time comprises the following steps:
(1) after planting huge fungous grass 1 year, utilize and present invention determine that its optimal harvest time.
(2) choose the subregion of 12 10 square metres in planting huge fungous grass district, when March, the Jujun grasses of whole growing area is gathered in.The energy-source plant every one subregion of harvesting in 30 days was started from the same day.
(3) Jujun grasses that step (2) is gathered in is measured total fresh weight of its produced plant of whole subregion, then take out after a part measures fresh weight and pulverize, dry again and measure its dry weight, calculate the total solids content of plant, then calculate the gross dry weight of whole subregion output energy-source plant.Gross dry weight according to whole subregion output Jujun grasses and vegetation period unit of account growth time unit are dry matter production.
(4) Jujun grasses step (2) gathered in is pulverized, a length of less than 15 centimetres after pulverizing.Raw material convection drying after pulverizing preserves 20 DEG C of temperature below after moisture less than 15%.
(5) raw material that step (4) different time gathers in and preserves is carried out biogas fermentation.Using biogas slurry or biogas residue as inoculum, total solid concentration 5%, fermentation temperature 37 DEG C, fermentation time 40 days, fermentation liquid pH maintains 6.5 ~ 8.0.Record daily output methane quantity and the methane concentration of every day.The methane production that after fermentation ends, unit of account dry accumulated within the whole fermentation phase.
(6) according to the methane production of accumulation after the dry matter production of step (3) unit growth unit of time area and methane production unit of account the produced plant fermentation of growth time unit are of step (5) per dry matter.
(7) growth time corresponding to methane production peak with accumulation after the produced plant fermentation of unit of time area of step (6) unit growth is optimal collecting time.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (2)
1. the method determining perennial biogas dedicated energy plant optimal harvest time, it is characterised in that: comprise the following steps:
(1) after perennial biogas dedicated energy plant growing 1 ~ 3 year, choose 5 ~ 20 subregions of the same area at energy-source plant growing area, when average daily temperature reaches this energy-source plant growth lower limit, the energy-source plant of whole growing area is gathered in；The energy-source plant every set time section one subregion of harvesting was started from the same day；
(2) first measure total fresh weight of the produced plant of whole subregion, then take out after a part measures fresh weight and pulverize, then dry its dry weight of mensuration, calculate the total solids content of plant, then calculate the gross dry weight of whole subregion output energy-source plant；Gross dry weight according to whole subregion output energy-source plant and vegetation period unit of account growth time in the dry matter production of unit are；
(3) energy-source plant of harvesting is crushed to a length of less than 15 centimetres, carry out ensiling process, the raw material ensiling time of different batches harvesting is identical, ensiling is dried to moisture less than 15% after terminating, it is stored in less than 20 DEG C, or the energy-source plant after pulverizing is without ensiling, convection drying, to moisture less than 15%, is stored in less than 20 DEG C；
(4) different time is gathered in and the raw material that preserves carries out biogas fermentation, using biogas slurry or biogas residue as inoculum, total solid concentration 0.5 ~ 25%, fermentation temperature 30 ~ 60 DEG C, fermentation time 10 ~ 60 days, fermentation liquid pH=6.5 ~ 8.0, record daily output methane quantity and methane concentration, the methane production that after fermentation ends, unit of account dry accumulated within the whole fermentation phase of every day；
(5) methane production of accumulation after methane production unit of account the produced plant fermentation of growth time unit are accumulated within the whole fermentation phase according to the dry matter production of unit are in the unit growth time of step (2) and the per dry matter of step (4)；
(6) with the growth time corresponding to methane production peak of accumulation after unit growth the produced plant fermentation of unit of time area of step (5) as optimal harvest time.
The method determining perennial biogas dedicated energy plant optimal harvest time the most according to claim 1, it is characterised in that: described energy-source plant is one or more in Pennisetum plant, Sorghum propinquum, sugar grass, Arundo donax, phragmites communis, Plantula Neyraudiae Reynaudianae, Caulis Sacchari sinensis, Radix sacchari arundinacei, arabian cron, Caulis Miscanthis floriduli, Miscanthus sacchariflorus (Maxim) Benth et Hook f, awns, Dicranopteris dichotoma, Dicranopteris amplachinget Chiu, Arundinella hirta (Thunb.) Tanaka, switchgrass.
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| CN104605153A (en) * | 2015-02-06 | 2015-05-13 | 福建农林大学 | Method for comprehensive utilization of energy grass in fields of feeds, biogas and paper pulp |
| CN105993604A (en) * | 2016-06-15 | 2016-10-12 | 福建农林大学 | Method for culturing straw rotting edible fungi by utilizing energy straw biogas residues |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2317314C (en) * | 1998-01-07 | 2003-12-30 | Metabolix, Inc. | Animal nutrition compositions |
| NZ529758A (en) * | 2001-05-31 | 2006-09-29 | Syngenta Participations Ag | A method comprising selecting corn hybrids of specific endosperm type and NDF content for use as a silage and/or a grain supplement |
| CN1923732A (en) * | 2006-09-18 | 2007-03-07 | 同济大学 | Method of preparing marsh gas from spartina alterniflora |
| CN101519669A (en) * | 2009-04-03 | 2009-09-02 | 南京大学 | Method for producing marsh gas by using pennisetum hydridum as raw material |
| CN101617599A (en) * | 2009-07-28 | 2010-01-06 | 童金阜 | Method for planting puelia and producing biogas by puelia as biomass energy |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2317314C (en) * | 1998-01-07 | 2003-12-30 | Metabolix, Inc. | Animal nutrition compositions |
| NZ529758A (en) * | 2001-05-31 | 2006-09-29 | Syngenta Participations Ag | A method comprising selecting corn hybrids of specific endosperm type and NDF content for use as a silage and/or a grain supplement |
| CN1923732A (en) * | 2006-09-18 | 2007-03-07 | 同济大学 | Method of preparing marsh gas from spartina alterniflora |
| CN101519669A (en) * | 2009-04-03 | 2009-09-02 | 南京大学 | Method for producing marsh gas by using pennisetum hydridum as raw material |
| CN101617599A (en) * | 2009-07-28 | 2010-01-06 | 童金阜 | Method for planting puelia and producing biogas by puelia as biomass energy |
Non-Patent Citations (1)
| Title |
|---|
| 《绿色能源植物橡胶草的最佳收获期研究》;冯春罡等;《安徽农业科学》;20141231;第42卷(第8期);第2237-2238页 * |
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