CN101886558A - Novel generating process by using straw - Google Patents
Novel generating process by using straw Download PDFInfo
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- CN101886558A CN101886558A CN2009100720302A CN200910072030A CN101886558A CN 101886558 A CN101886558 A CN 101886558A CN 2009100720302 A CN2009100720302 A CN 2009100720302A CN 200910072030 A CN200910072030 A CN 200910072030A CN 101886558 A CN101886558 A CN 101886558A
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Abstract
The invention provides a novel generating process by using straw. The process comprises the following steps of: a, biomass pretreatment, wherein the moisture content of raw materials is detected and is more than or equal to 14 percent, and the particle cutting uniformity is more than or equal to 6mm; b, gasification reaction; c, dedusting and decoking and purifying; and d, gas storage and transportation. Without seasonal influence or variety influence, the process is an effective measurement for comprehensively utilizing biomass raw materials. Meanwhile, the operation of gas generation, blowing out and gas supply stop, blowing in and gas supply is flexible and convenient to fulfill the aim of saving resources and achieve the effect of improving yield, effect and quality remarkably. The process can be widely used as the generating process by using the straw in countryside with rich straw resources.
Description
Technical field:
The present invention relates to the new process of utilizing agricultural crop straw to generate electricity.
Background technique:
At present, the comprehensive utilization of stalk is firmly very low, is in substantially in the state of " the high collection, low utilization, maximum discharge "." three summer jobs " " three autumn jobs as harvesting, tilling and planting " peasant in season burns stalk in order to rush-harvest and rush-plant substantially, not only causes the wasting of resources, and brings accidents such as serious pollution of atmosphere and initiation fire to take place.Can carry out stalk fully utilizes to such an extent that efficient is also very low; Going into operation and the straw power generation enterprise of a few family of commercial operation all is in the loss of capital operation state.Trace it to its cause, mainly be the technology existing problems of straw power generation; Present technology mainly is: 1, gasification reaction, 2, dedusting, decoking purified treatment, 3, the gas generating.The gas direct-type generating of generating electricity just, this generation mode is subjected to its influence from each side very big.Such as: raw material supply and quality problems, its not only seasonable influence, stalk comes source problem, and also has the influence of problems such as moisture content, mould erosion, particle, can make stalk produce problems such as low or time of fuel gases calorific value is slow at gasification, air supply system and occur.And for example: the influence whether key equipment and supplementary equipment be supporting.In the practice: the operation of key equipments such as boiler, steam turbine generator is more stable, but supplementary equipment quality such as feed water pump, screw(-type) feeder, feeding system, induced draught fan are stable not enough.Or the like all multifactor, the whichever link goes wrong, complete equipment is all out of service, thereby this application technology occurs and can not normally bring into play.Form the phenomenon that generating is stable inadequately, power supply is broken a contract and happen occasionally, cause the enterprise operation difficulty.Addressing these problems becomes urgent need.
The content of invention:
Overcome the deficiencies in the prior art, propose a kind of new process of utilizing straw power generation.This manufacturing process is: a, living beings pretreatment, at first to carry out the monitoring of raw material moisture content, raw material moisture content 〉=14%; The uniformity coefficient that the particle section is cut will reach 〉=60mm; B, gasification reaction, after stalk entered gasification oven, part was met the oxygen burning, and thermolysis institute calorific requirement is provided, pyrolysis takes place in most of stalk under anoxia condition, fold fugitive constituent and coke, secondary response takes place in fugitive constituent in middle temperature reaction zone, and making coke tar cracking is gas, simultaneously between gas and the coke, between gas and the gas reduction reaction takes place, produce inflammable gas after master stream pyrolysis and oxidation reaction, Main Ingredients and Appearance has: carbon monoxide (CO) hydrogen (H
2), methane (CH
4) etc., calorific value is at 1250kcaI/m
3About, contain a small amount of tar simultaneously; C, carry out dedusting, decoking purified treatment, the inflammable gas of gasification oven output, it carries part of coke fine grained and dust, must import piece-rate system and carry out gas-purification, part of coke refluxes by inertial dust separator and enters gasification oven participation reaction, the gas phase tar condensing is removed by washing, and the inflammable gas of gasification oven output has only by detar, the decontamination procedure that takes off flue dust, dewatered steam and cooling process, and the high-quality combustion gas that could produce is generated electricity; D, combustion gas store and carry.Advantage of the present invention: with regard to raw material supply, neither there is seasonal effect in it, does not also have the kind influence, is the effective measures of a comprehensive utilization biomass material.Just fuel gas generation is used in generating, and blowing out is stopped the supple of gas or steam, blow-on is opened fate and made comparisons flexibly, simple and direct, can reach aim of saving, can make full use of the peak valley create beneficial result again, reaches significant volume increase, synergy, increases the effect of matter.Otherwise, directly utilizing in the straw power generation, move on a global procedures owing to feed intake to produce, in case producing, start just do not have parking space, can not well utilize peak regulation means create beneficial result simultaneously.On the contrary, when being subjected to from the influencing of each side, also can be because of the energy waste of shutting down, start causes.The stalk stable electric generation has had guarantee.Because straw power generation is the result under the effect of combustion gas interruption, fundamentally broken away from abnormal influence that each link is in operation and exists, realized the stability of generating.Simultaneously, its effect in large-scale generating just seems more outstanding.
Description of drawings:
Fig. 1 process flow diagram of the present invention.
Embodiment: the new process of straw power generation is: a, living beings pretreatment, at first to carry out the monitoring of raw material moisture content, raw material moisture content 〉=14%; The uniformity coefficient that the particle section is cut will reach 〉=60mm; The living beings pretreatment is not only the simple course of working that raw material enters fine mode by primary status, and this process is very important to the combustion gas of production high-quality.On step, to hold three passes.At first to carry out the monitoring of raw material moisture content.The monitoring of raw material moisture content must guarantee 〉=14% all playing crucial effects in deposit and the utilization.Secondly, the section of splitting arrangement, the uniformity coefficient that the particle section is cut will reach 〉=60mm.To note the raw material inspection after the mould erosion (ageing material) especially.The details of these three parts all can influence the generation of high-quality combustion gas in cracking; What will influence generating and be incorporated into the power networks and power when directly utilizing straw power generation stablizes, b, gasification reaction, after stalk enters gasification oven, part is met the oxygen burning, thermolysis institute calorific requirement is provided, pyrolysis takes place in most of stalk under anoxia condition, fold fugitive constituent and coke, secondary response takes place in fugitive constituent in middle temperature reaction zone, making coke tar cracking is gas, between gas and the coke, between gas and the gas reduction reaction takes place simultaneously, produce inflammable gas after master stream pyrolysis and oxidation reaction, Main Ingredients and Appearance has: carbon monoxide (CO) hydrogen (H
2), methane (CH
4) etc., calorific value is at 1250kcaI/m
3About, contain a small amount of tar simultaneously; C, carry out dedusting, decoking purified treatment, the inflammable gas of gasification oven output, it carries part of coke fine grained and dust, must import piece-rate system and carry out gas-purification, part of coke refluxes by inertial dust separator and enters gasification oven participation reaction, the gas phase tar condensing is removed by washing, and the inflammable gas of gasification oven output has only by detar, the decontamination procedure that takes off flue dust, dewatered steam and cooling process, and the high-quality combustion gas that could produce is generated electricity; D, combustion gas store and carry.It all is self-existent separately operation architecture that it and stalk cracking combustion gas, combustion gas are generated electricity between the two, is referred to as stalk " discontinuous generating ".Increase the purpose of this technical matters, just be to improve the stability of straw power generation; E, gas driven generator group are exactly combustion gas after purifying, and carry out the hot merit conversion by internal-combustion engine and produce power, drive generator for electricity generation.
Wherein, the combustion gas bunkerage adopts large-scale steel structure sealed type gas tank.Type of equipment: this project adopts thin oil seal dry type storage tank, and the type body is circular, vertical tank.The jar inner carrier is established the straight guide operation in the edge, reaches the purpose of regulating combustion gas reserves and pressure.Sealing between jar inner carrier and the tank skin is to carry out in the special-purpose sealing mechanism of special-purpose sealing oil injection.Draining is handled.Generally under hyperbaric environment, the condensing temperature of water vapor uprises, and is easy to become elutriation and goes out, and is attached on the gas storage tank skin, is timely removing, and gas holder is installed regularly jettison gear, and (1-2 week), discharging water got final product.Supporting arrangement: supporting arrangement mainly is provided with output and imports two systems.Being gas can respectively and the control setting of installing between the cleaning system, power generation system, is to be used for conversion or transmit energy to be exported, to go into the device of mutual continuous transmission.Adopted the hydrodynamic drive technology in the gas can air inlet, the high-quality combustion gas that makes cracking is by the gentle power coupler of strength torque converter, and thin the delivering in the bunkerage of working gas that becomes a sealing gone.Jar atmospheric pressure and volume are controlled by a jar inner carrier also, and gas can is given vent to anger and adopted the static pressure drive technology, both by the pressure system and the combustion gas driving system of combustion gas, dredge with pipeline connection between the two and send fuel gas generation.Remove in addition, store being provided with of output and input, non-return device and flow meter, monitoring gaseous-pressure device or the like also will be installed in combustion gas.When system pressure is higher or lower than the certain pressure value, can cut off urgent valve by supervisory system rapidly.In a word, go to realize improving the measure of precision and the automatic controlling level of storage, conveying, make it straw power generation science, reasonable more by the various device device.
Claims (1)
1. new process of utilizing straw power generation is characterized in that: a, living beings pretreatment, at first to carry out the monitoring of raw material moisture content, raw material moisture content 〉=14%; The uniformity coefficient that the particle section is cut will reach 〉=6mm; B, gasification reaction, after stalk entered gasification oven, part was met the oxygen burning, and thermolysis institute calorific requirement is provided, pyrolysis takes place in most of stalk under anoxia condition, fold fugitive constituent and coke, secondary response takes place in fugitive constituent in middle temperature reaction zone, and making coke tar cracking is gas, simultaneously between gas and the coke, between gas and the gas reduction reaction takes place, produce inflammable gas after master stream pyrolysis and oxidation reaction, Main Ingredients and Appearance has: carbon monoxide (CO) hydrogen (H
2), methane (CH
4) etc., calorific value is at 1250kcaI/m
3About, contain a small amount of tar simultaneously; C, carry out dedusting, decoking purified treatment, the inflammable gas of gasification oven output, it carries part of coke fine grained and dust, must import piece-rate system and carry out gas-purification, part of coke refluxes by inertial dust separator and enters gasification oven participation reaction, the gas phase tar condensing is removed by washing, and the inflammable gas of gasification oven output has only by detar, the decontamination procedure that takes off flue dust, dewatered steam and cooling process, and the high-quality combustion gas that could produce is generated electricity; D, combustion gas store and carry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100720302A CN101886558A (en) | 2009-05-14 | 2009-05-14 | Novel generating process by using straw |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100720302A CN101886558A (en) | 2009-05-14 | 2009-05-14 | Novel generating process by using straw |
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| CN101886558A true CN101886558A (en) | 2010-11-17 |
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| CN2009100720302A Pending CN101886558A (en) | 2009-05-14 | 2009-05-14 | Novel generating process by using straw |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152732A (en) * | 2011-02-18 | 2011-08-17 | 李新民 | Steam motor vehicle with biomass as fuel |
| CN104449874A (en) * | 2014-12-08 | 2015-03-25 | 柳州东侯生物能源科技有限公司 | Process method of biomass particle gasification power generation |
| CN105419872A (en) * | 2015-12-09 | 2016-03-23 | 宜兴市芳桥街道金兰村村民委员会 | Straw gasification treatment process |
| CN110259534A (en) * | 2019-05-28 | 2019-09-20 | 江苏大学 | A kind of gasification of biomass organic rankine cycle system |
-
2009
- 2009-05-14 CN CN2009100720302A patent/CN101886558A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152732A (en) * | 2011-02-18 | 2011-08-17 | 李新民 | Steam motor vehicle with biomass as fuel |
| CN104449874A (en) * | 2014-12-08 | 2015-03-25 | 柳州东侯生物能源科技有限公司 | Process method of biomass particle gasification power generation |
| CN105419872A (en) * | 2015-12-09 | 2016-03-23 | 宜兴市芳桥街道金兰村村民委员会 | Straw gasification treatment process |
| CN110259534A (en) * | 2019-05-28 | 2019-09-20 | 江苏大学 | A kind of gasification of biomass organic rankine cycle system |
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Addressee: Wang Liangu Document name: Notification of before Expiration of Request of Examination as to Substance |
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Application publication date: 20101117 |