CN105807026A - Estimation method for higher heating value of biomass-plastic mixed fuel - Google Patents
Estimation method for higher heating value of biomass-plastic mixed fuel Download PDFInfo
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- CN105807026A CN105807026A CN201510964156.6A CN201510964156A CN105807026A CN 105807026 A CN105807026 A CN 105807026A CN 201510964156 A CN201510964156 A CN 201510964156A CN 105807026 A CN105807026 A CN 105807026A
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- 239000004033 plastic Substances 0.000 title claims abstract description 77
- 229920003023 plastic Polymers 0.000 title claims abstract description 77
- 239000000446 fuel Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 title abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 20
- 239000002028 Biomass Substances 0.000 claims description 35
- 238000004458 analytical method Methods 0.000 claims description 11
- 239000000470 constituent Substances 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 claims description 4
- 241000720974 Protium Species 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 25
- 229920001155 polypropylene Polymers 0.000 description 25
- -1 polypropylene Polymers 0.000 description 11
- 239000010803 wood ash Substances 0.000 description 6
- 239000010903 husk Substances 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses an estimation method for a higher heating value of a biomass-plastic mixed fuel. The invention fills up the blank of the estimation method for the higher heating value of the biomass-plastic mixed fuel at present. The estimation method comprises the following steps: acquiring the mass percentage of C, H and O in the biomass-plastic mixed fuel, and then substituting the content of C, H and O into a formula (1) and calculating the higher heating value of the biomass-plastic mixed fuel. The estimation method provided by the invention omits the step of heating value detection, is simple in calculation, high in accuracy and high in reliability, and supplies powerful basis for the design and running of a thermo-technical device.
Description
Technical field
The present invention relates to the evaluation method of a kind of heat output of fuel, a kind of biomass
The evaluation method of-plastics fuel combination high calorific power.
Summary of the invention
In recent years, due to global warming and problem, the biomass such as Fossil fuel is the most in short supply
Utilize and paid close attention to widely.Biomass have a following advantage as a kind of new forms of energy: one, raw
Material, as a kind of regenerative resource, can alleviate energy shortage with substitute fossil fuels；Its two,
Its CO during biomass fuel utilization2Clean discharge be zero, this is because biomass combustion meeting
Produce CO2, and biomass can absorb CO by photosynthesis in growth course2。
But the caloric value of general biomass only has 16-20.5MJ/kg, far away from Fossil fuel.
In order to improve the heat of biomass combustion release, in biomass class A fuel A, add waste plastics (heat
Value is up to 43-45MJ/kg) it is relatively effective method.Additionally, this also takes full advantage of useless
Abandon plastics, reduce environmental pollution.
After biomass class A fuel A has blended waste plastic, its physical and chemical performance and high-order heating
Value all changes.For thermal apparatus, heat output of fuel is its design and runs
Important parameter, accurately estimates that the high calorific power of biomass-plastics fuel combination has important meaning
Justice.More existing caloric value evaluation methods are all for coal or biomass Elemental analysis data, energy
Enough accurate forecasting coal or the caloric value of biomass, such as Jenkins, B.et al.,
Symposium energy from biomass and waste IX I GT, Ch i cago, 1985,
P.371, and for example Tillman, D.A., 2012.Wood as an energy resource.
Elsevier).But, above-mentioned computation model inapplicable biomass-plastics fuel combination,
Use said method estimation gained biomass-plastics fuel combination high calorific power accuracy relatively
Difference.
Summary of the invention
The invention aims to solve above-mentioned technical problem, it is provided that one can omit caloric value
Detecting step, calculate simple, accuracy high, good reliability, design for thermal apparatus and run
The evaluation method of the biomass-plastics fuel combination high calorific power of strong foundation is provided.
Evaluation method of the present invention employing following step:
1) content of C, H, O in biomass-plastics fuel combination is obtained by elementary analysis；
2) content of C, H, O is substituted into formula (1), calculate described biomass-plastics mixing
The high calorific power of fuel:
Formula (1): HHV=33*C+120*H-16*O
In formula, HHV be high calorific power (MJ/kg), C be in biomass-plastics fuel combination
Carbon element content, H be the content of protium in biomass-plastics fuel combination, O be biomass
The content of oxygen element in-plastics fuel combination, described content percent is weight/mass percentage composition.
In described step (1), biomass and plastics are mixed in proportion make biomass-
After plastics fuel combination, use elemental analyser that biomass-plastics fuel combination is carried out element
Analyze, it is thus achieved that the content of C, H, O in biomass-plastics fuel combination.
In described step (1), before biomass and plastics are mixed in proportion, first use element
Analyser carries out elementary analysis respectively to biomass and plastics, obtains respectively in biomass and plastics
The content of C, H, O；Then the content of identity element in biomass and plastics is substituted into formula (2)
In, it is thus achieved that the content of this element in biomass-plastics fuel combination,
Formula (2): E=B* (1-x)+P*x；
In formula, E is C or H or O constituent content in biomass-plastics fuel combination, and B makes a living
This constituent content in material, x is plastics weight/mass percentage composition in fuel combination, and P is for moulding
This constituent content in material；
The content of C, H, O in biomass and plastics is substituted into respectively in formula (2), it is thus achieved that
The content of C, H, O in biomass-plastics fuel combination.
Described biomass can be the rice husk for burning, saw wood ash, straw, Caulis et Folium Oryzae etc..
Described plastics can be polypropylene, polystyrene, polyethylene, polrvinyl chloride etc..
The present invention is directly calculated by the elementary analysis result of biomass-plastics fuel combination
The high calorific power of this fuel combination, simple and convenient, can relatively accurately predict biomass-mould
The high calorific power of material fuel combination, its mean absolute error (AAE) is 2.798%, averagely
Error is 0.515%, correlation coefficient (R2) it is 0.999, for design and the operation of thermal apparatus
Powerful guarantee is provided.
Detailed description of the invention
Embodiment 1:
Step 1: choose common rice husk and make as biomass fuel, plain polypropylene (PP)
For adding plastics, it is ground, be dried；
Step 2: by the biomass of gained in step 1 and polypropylene (PP) (PP to scale
Shared mass percent) it is sufficiently mixed and obtains biomass-plastics fuel combination；
Step 3: to gained biomass in step 2-plastics fuel combination elemental analyser
(U.S. Thermo Electron Corp., Flash EA1112) carries out elementary analysis, point
Analysis result is as shown in table 1；
Table 1 rice husk and the polypropylene (PP) elementary analysis when different mixing proportion.
Step 4: by the content of C, H, O in the biomass of table 1-plastics fuel combination
Substituting in formula (1), calculate the high calorific power of this fuel combination, result is as described in Table 2.
Formula (1): HHV=33*C+120*H-16*O
In formula, HHV be high calorific power (MJ/kg), C be in biomass-plastics fuel combination
Carbon element content, H be the content of protium in biomass-plastics fuel combination, O be biomass
The content of oxygen element in-plastics fuel combination, described content percent is weight/mass percentage composition.
As a example by mixed proportion 10wt% of PP, substitute into formula (1), the life under this mixed proportion
The value of calculation of the high calorific power HHV of material-plastics fuel combination is:
33*50.1%+120*6.6%-16*43.3%=17.5
Table 2 is sent out for rice husk in embodiment 1 and polypropylene (PP) high position when different mixing proportion
Heat amount test value (Britain LECO Instruments Ltd., AC-350) and value of calculation, its
In, mixed proportion is mass content shared by PP.
Table 2 rice husk and polypropylene (PP) under each mixed proportion high calorific power test value and
The contrast of value of calculation
Embodiment 2
Step 1: choose common saw wood ash as biomass fuel, plain polypropylene (PP)
As adding plastics, grind respectively, be dried；
Step 2: to gained saw wood ash and plastics in step 1 respectively with the elemental analyser (U.S.
Thermo Electron Corp., Flash EA1112) carry out elementary analysis, such as table 3 institute
Show,
Table 3 saw wood ash and the elementary analysis of polypropylene (PP)
Step 3: calculate C, H and the O in biomass-plastics fuel combination by formula (2)
Content.
Formula (2): E=B* (1-x)+P*x
In formula, E is C or H or O constituent content in biomass-plastics fuel combination, and B makes a living
This constituent content in material, x is plastics quality in fuel combination, and P is this yuan in plastics
Cellulose content；
With carbon content E in the biomass-plastics fuel combination of mixed proportion 10wt% of PP
As a example by calculating, substitute into formula (2),
48.1* (1-10%)+85.0*10%=51.8
In like manner, more respectively biomass-plastics mixing the combustion of mixed proportion 10wt% of PP is calculated
The constituent content of H and O in material, concrete outcome is shown in Table 4.
Table 4 saw wood ash and the polypropylene (PP) constituent content when different mixing proportion
Step 4: by the C in biomass-plastics fuel combination calculated in table 4, H,
The content percent of O substitutes in formula (1), calculates the high calorific power of this fuel combination,
Result is as described in Table 5.
Formula (1): HHV=33*C+120*H-16*O
In formula, HHV be high calorific power (MJ/kg), C be in biomass-plastics fuel combination
Carbon element content, H be the content of protium in biomass-plastics fuel combination, O be biomass
The content of oxygen element in-plastics fuel combination, described content is weight/mass percentage composition.
As a example by mixed proportion 10wt% of PP, substitute into formula (1), the life under this mixed proportion
The value of calculation of the high calorific power HHV of material-plastics fuel combination is:
33*51.8%+120*6.9%-16*41.1%=18.8
Table 5 saw wood ash and polypropylene (PP) when different mixing proportion high calorific power test value and
Value of calculation
To sum up, from table 2 and table 5, evaluation method of the present invention other method more existing is accurate
Really property is higher, has more reference value.
Claims (3)
1. an evaluation method for biomass-plastics fuel combination high calorific power, its feature exists
In, employing following step:
1) content of C, H, O in biomass-plastics fuel combination is obtained by elementary analysis；
2) content value of C, H, O is substituted into formula (1), calculate described biomass-plastics and mix
The high calorific power of conjunction fuel:
Formula (1): HHV=33*C+120*H-16*O
In formula, HHV be high calorific power (MJ/kg), C be in biomass-plastics fuel combination
Carbon element content, H be the content of protium in biomass-plastics fuel combination, O be biomass
The content of oxygen element in-plastics fuel combination, described content is weight/mass percentage composition.
2. the estimation of biomass-plastics fuel combination high calorific power as claimed in claim 1
Biomass and plastics are being mixed by method, it is characterised in that in described step (1) in proportion
After biomass-plastics fuel combination is made in conjunction, use elemental analyser to biomass-plastics mixing
Fuel carries out elementary analysis, it is thus achieved that the content of C, H, O in biomass-plastics fuel combination.
3. the estimation of biomass-plastics fuel combination high calorific power as claimed in claim 1
Method, it is characterised in that in described step (1), be mixed in proportion in biomass and plastics
Before, first use elemental analyser respectively biomass and plastics to be carried out elementary analysis, obtain respectively
The content of C, H, O in biomass and plastics；Then by identity element in biomass and plastics
Content substitutes in formula (2), it is thus achieved that the content hundred of this element in biomass-plastics fuel combination
Mark,
Formula (2): E=B* (1-x)+P*x
In formula, E is C or H or O constituent content in biomass-plastics fuel combination, and B makes a living
This constituent content in material, x is plastics quality in fuel combination, and P is this yuan in plastics
Cellulose content；
The content of C, H, O in biomass and plastics is substituted into respectively in formula (2), it is thus achieved that
The content of C, H, O in biomass-plastics fuel combination.
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| CN201510964156.6A CN105807026A (en) | 2015-12-18 | 2015-12-18 | Estimation method for higher heating value of biomass-plastic mixed fuel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109781785A (en) * | 2019-01-31 | 2019-05-21 | 成都市兴蓉再生能源有限公司 | A kind of sludge-rubbish collaboration burning mixed material heating-value determination method |
| CN110118801A (en) * | 2019-05-20 | 2019-08-13 | 成都市兴蓉再生能源有限公司 | A kind of aging rubbish-crude waste collaboration burning mixed material heating-value determination method |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852529A (en) * | 2013-10-12 | 2014-06-11 | 苏州金宏气体股份有限公司 | Method for rapidly detecting high heating value of natural gas |
| CN104535613A (en) * | 2014-12-26 | 2015-04-22 | 通标标准技术服务（天津）有限公司 | Device and method for measuring higher and lower heating values of solid mineral fuel |
Non-Patent Citations (3)
| Title |
|---|
| AYHAN DEMIRBAS: "Calculation of higher heating values of biomass fuels", 《FUEL》 * |
| PENG TAN等: "Estimation of higher heating value of coal based on proximate analysis using support vector regression", 《FUEL PROCESSING TECHNOLOGY》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781785A (en) * | 2019-01-31 | 2019-05-21 | 成都市兴蓉再生能源有限公司 | A kind of sludge-rubbish collaboration burning mixed material heating-value determination method |
| CN109781785B (en) * | 2019-01-31 | 2021-06-15 | 成都市兴蓉再生能源有限公司 | Method for measuring heat value of sludge-garbage co-incineration mixed material |
| CN110118801A (en) * | 2019-05-20 | 2019-08-13 | 成都市兴蓉再生能源有限公司 | A kind of aging rubbish-crude waste collaboration burning mixed material heating-value determination method |
| CN110118801B (en) * | 2019-05-20 | 2022-05-31 | 成都市兴蓉再生能源有限公司 | Method for measuring calorific value of stale refuse-primary refuse co-incineration mixed material |
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