CN102071038A - Microalgae high-pressure continuous tower-type liquefying process - Google Patents
Microalgae high-pressure continuous tower-type liquefying process Download PDFInfo
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- CN102071038A CN102071038A CN2009102232430A CN200910223243A CN102071038A CN 102071038 A CN102071038 A CN 102071038A CN 2009102232430 A CN2009102232430 A CN 2009102232430A CN 200910223243 A CN200910223243 A CN 200910223243A CN 102071038 A CN102071038 A CN 102071038A
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Abstract
The invention provides a microalgae high-pressure continuous tower-type liquefying process, which comprises the following steps of: pressurizing microalgae-containing suspension by using a high-pressure pump, making the suspension flow through a heat exchanger to exchange heat with liquefied liquid, heating to be between 180 and 250 DEG C according to a certain heating curve by using a heating furnace, and preserving heat in a gelatinizing tower for certain time to make solid biomass changed into flowable slurry; quickly heating gelatinized liquid to be between 270 and 350 DEG C at a certain heating rate by using a secondary heating furnace, and adding into a liquefying tower for hydrothermal liquefying to prepare a liquid fuel; separating coke slurry from a hydrothermal liquefying product by using a high-pressure settling tank, discharging the coke slurry from a coke slurry outlet, and making liquefied gas liquid pass through the top of the high-pressure settling tank, exchange heat with the microalgae suspension through the heat exchanger and flow into a three-phase separator; separating the liquefied gas liquid into a water phase, an oil phase and a gas phase in the three-phase separator, circulating and discharging the water phase by connecting the water phase with the high-pressure pump and a discharging port from the lower part of the three-phase separator, concentrating to prepare a foliar fertilizer, biological gasoline or a snow-melting agent and the like, discharging the oil phase from a biological oil outlet in the middle of the three-phase separator to obtain a product, and discharging the gas phase from a tail gas outlet on the top of the three-phase separator to serve as a fuel; and discharging the solid-phase coke slurry to serve as an activated carbon material or a fuel.
Description
1. technical field
The invention provides the continuous tower liquefaction process of a kind of little algae high pressure, belong to the bioenergy field.
2. background technology
Convert biomass to high-grade geseous fuel and liquid fuel, can reduce dependence fossil oils such as oil, coals.Simultaneously, utilize biomass energy, can slow down the CO2 discharging, become the focus of countries in the world chemical circles research.The route that biomass are converted into liquid fuel can be divided into fast pyrolysis liquefaction and high-pressure liquefaction.Fast pyrolysis liquefaction is adapted to low water-contained biomass, and as stalk, sawdust etc., high-pressure liquefaction is adapted to high water-contained biomass.Carry out the process of pyrolysis in the hot water of high water-contained biomass temperature in high pressure, need not to dehydrate and pulverize.The same with the high temperature fast pyrolysis process, generate gas, liquid and solid.The light constituent wood vinegar component (xanthohumic acid) that pyrolysis produces is dissolved in the water, and oil and solid mix.Bio oil is a main products, and oxygen level is less than 20%, 1.5 times of the suitable high temperature rapid pyrolysis oil of calorific value.But because biomass high-pressure liquefaction research just has been in the starting stage, research mostly is the autoclave batch operation greatly, is difficult to realize large-scale industrial production.As natural little algae and CO
2Little algae of the by product that reduces discharging is important high water-contained biomass resource, and little algae high-pressure liquefaction technology of setting up continous way has more practical significance.
3. summary of the invention
The invention provides the continuous tower liquefaction process of little algae high pressure.The suspension that contains little algae by the high-pressure pump pressurization after, the interchanger of flowing through is warmed up to 180-250 ℃ through process furnace earlier with after the liquefier heat exchange again, is incubated certain hour then in the gelatinization tower, makes its solid biologic be changed into flowable slurry; Dextrin is rapidly heated 270-350 ℃ by secondary heating furnace, enters the liquefaction of liquefaction tower hydro-thermal and produces liquid fuel; The hydro-thermal liquefied product is starched to export through high pressure slurry tank branch out of focus slurry and from Jiao and is effluxed, and the liquefaction gas-liquid flows into triphase separator after high pressure slurry tank top is by interchanger and the heat exchange of little algae suspension; The liquefaction gas-liquid is divided into water, oil phase and gas phase in triphase separator, the high-pressure pump that water connects from the triphase separator bottom partly circulates and effluxes notch portion and effluxes concentrated produce foliage fertilizer, biogasoline or Snow Agent etc., oil phase obtains product from the bio oil outlet of triphase separator middle part, and gas phase is discharged from the tail gas outlet at triphase separator top and acted as a fuel; The burnt slurry of solid phase effluxes as gac raw material or fuel.
Little algae gelatinization tower gelatinization reaction times is 10-50 minute.
It is 10-40 minute that little algae liquefaction tower is stuck with paste the hydro-thermal liquefaction reaction time.
4. description of drawings
Accompanying drawing is a process schematic representation of the present invention.
The drawing of accompanying drawing is established bright as follows:
The burnt slurry outlet of 1-high-pressure pump 2-interchanger 3-process furnace 4-gelatinization tower 5-liquefaction tower 6-high pressure slurry tank 7-
8-triphase separator 9-effluxes a mouthful 10-bio oil outlet 11-tail gas outlet 12-secondary heating furnace
Below in conjunction with drawings and Examples in detail process characteristic of the present invention is described in detail.
5. embodiment
Little algae gelatinization tower gelatinization reaction times is 30 minutes.
It is 25 minutes that little algae liquefaction tower is stuck with paste the hydro-thermal liquefaction reaction time.
The bio-crude oil calorific value that generates contains oxygen 10-20% about 30MJ/Kg, want high relatively about the bio-crude oil calorific value 20MJ/Kg of biomass gas phase fast pyrogenation, and it is low to contain oxygen.
Little algae high-pressure continuous tower-type liquefying process provided by the present invention has following outstanding advantage: (1) can be by the required optimal temperature conditions control reaction temperature of reaction, advantages of simple, and reaction conversion ratio and rate of recovery height are easy to heavy industrialization; (2) water need not vaporization in overall process, energy consumption is low; (3) the slurry attitude preliminary treatment of little algae and high-pressure liquefaction can make little algae need not to dehydrate and the high energy consumption step such as pulverizing; (4) little algae full biomass liquefaction liquefaction, oily yield is higher than the oily yield of little algae extracting, esterifying method, resource utilization height; (5) good product quality, oxygen content is lower, the calorific value height.
Claims (3)
1. the invention provides the continuous tower liquefaction process of little algae high pressure, the suspension that it is characterized in that containing little algae by the high-pressure pump pressurization after, the interchanger of flowing through is warmed up to 180-250 ℃ through process furnace earlier with after the liquefier heat exchange again, in the gelatinization tower, be incubated certain hour then, make its solid biologic be changed into flowable slurry; Dextrin is rapidly heated 270-350 ℃ by secondary heating furnace, enters the liquefaction of liquefaction tower hydro-thermal and produces liquid fuel; The hydro-thermal liquefied product is starched to export through high pressure slurry tank branch out of focus slurry and from Jiao and is effluxed, and the liquefaction gas-liquid flows into triphase separator after high pressure slurry tank top is by interchanger and the heat exchange of little algae suspension; The liquefaction gas-liquid is divided into water, oil phase and gas phase in triphase separator, water connects high-pressure pump and partly circulates and efflux notch portion and efflux from the triphase separator bottom, oil phase obtains product from the bio oil outlet of triphase separator middle part, and gas phase is discharged from the tail gas outlet at triphase separator top and acted as a fuel; The burnt slurry of solid phase effluxes as gac raw material or fuel, and water effluxes to concentrate produces foliage fertilizer, biogasoline or Snow Agent etc.
2. according to the continuous tower liquefaction process of little algae high pressure that claim 1 provided, it is characterized in that little algae gelatinization tower gelatinization reaction times is 10-50 minute.
3. had the continuous tower liquefying plant of pretreated biomass high-pressure according to claim 1 provides, it is characterized in that it was 10-40 minute that little algae liquefaction tower is stuck with paste the hydro-thermal liquefaction reaction time.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013107248A1 (en) * | 2012-01-20 | 2013-07-25 | 中国科学院大连化学物理研究所 | Method of microalgae cultivation and parallel bio-oil production |
| US20130331623A1 (en) * | 2012-06-08 | 2013-12-12 | Battelle Memorial Institute | Combined hydrothermal liquefaction and catalytic hydrothermal gasification system and process for conversion of biomass feedstocks |
| CN104109550A (en) * | 2013-04-22 | 2014-10-22 | 中国农业机械化科学研究院 | Method and system for preparing biological oil by antibiotic bacteria residue |
| CN104371926A (en) * | 2013-08-15 | 2015-02-25 | 中国石油化工股份有限公司 | Microalgae culture solution treatment method |
| CN105062653A (en) * | 2015-08-14 | 2015-11-18 | 北京航空航天大学 | Method for preparing aviation fuel from microalgae |
| CN106118705A (en) * | 2016-06-22 | 2016-11-16 | 西安交通大学 | A kind of continuous reaction system and method for microalgae hydrothermal liquefaction preparing bio-oil |
| GB2559583A (en) * | 2017-02-09 | 2018-08-15 | Phycofeeds Ltd | Hydrothermal liquefaction reactor |
| CN108517224A (en) * | 2018-04-08 | 2018-09-11 | 中国科学院广州能源研究所 | A method of nutrient nitrogen recycles organic element carbon simultaneously in removing microalgae hydrothermal liquefaction waste water |
| CN109181843A (en) * | 2018-08-20 | 2019-01-11 | 梁云 | The device and method and microbial oil of on-line heating separate microorganism grease |
| CN112029114A (en) * | 2020-09-23 | 2020-12-04 | 山东奥淼科技发展有限公司 | Method and device for extracting medical fulvic acid from biomass pyrolysis liquid |
| CN112779044A (en) * | 2021-01-05 | 2021-05-11 | 江苏大学 | Sludge and microalgae supercritical co-rapid hydrothermal liquefaction oil production system and process based on water-phase algae cultivation |
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| US20080016752A1 (en) * | 2006-07-18 | 2008-01-24 | Norbeck Joseph M | Method for high energy density biomass-water slurry |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013107248A1 (en) * | 2012-01-20 | 2013-07-25 | 中国科学院大连化学物理研究所 | Method of microalgae cultivation and parallel bio-oil production |
| US20130331623A1 (en) * | 2012-06-08 | 2013-12-12 | Battelle Memorial Institute | Combined hydrothermal liquefaction and catalytic hydrothermal gasification system and process for conversion of biomass feedstocks |
| US9758728B2 (en) * | 2012-06-08 | 2017-09-12 | Battelle Memorial Institute | Combined hydrothermal liquefaction and catalytic hydrothermal gasification system and process for conversion of biomass feedstocks |
| US11407946B2 (en) | 2012-06-08 | 2022-08-09 | Battelle Memorial Institute | Combined hydrothermal liquefaction and catalytic hydrothermal gasification system and process for conversion of biomass feedstocks |
| US10138426B2 (en) | 2012-06-08 | 2018-11-27 | Battelle Memorial Institute | Combined hydrothermal liquefaction and catalytic hydrothermal gasification system and process for conversion of biomass feedstocks |
| CN104109550A (en) * | 2013-04-22 | 2014-10-22 | 中国农业机械化科学研究院 | Method and system for preparing biological oil by antibiotic bacteria residue |
| CN104109550B (en) * | 2013-04-22 | 2016-01-20 | 中国农业机械化科学研究院 | A kind of method and system of antibiotic bacterium dregs preparing bio-oil |
| CN104371926A (en) * | 2013-08-15 | 2015-02-25 | 中国石油化工股份有限公司 | Microalgae culture solution treatment method |
| CN105062653B (en) * | 2015-08-14 | 2021-06-04 | 北京航空航天大学 | Method for preparing aviation fuel from microalgae |
| CN105062653A (en) * | 2015-08-14 | 2015-11-18 | 北京航空航天大学 | Method for preparing aviation fuel from microalgae |
| CN106118705A (en) * | 2016-06-22 | 2016-11-16 | 西安交通大学 | A kind of continuous reaction system and method for microalgae hydrothermal liquefaction preparing bio-oil |
| GB2559583A (en) * | 2017-02-09 | 2018-08-15 | Phycofeeds Ltd | Hydrothermal liquefaction reactor |
| GB2559583B (en) * | 2017-02-09 | 2022-04-20 | Phycofeeds Ltd | Hydrothermal liquefaction reactor |
| CN108517224A (en) * | 2018-04-08 | 2018-09-11 | 中国科学院广州能源研究所 | A method of nutrient nitrogen recycles organic element carbon simultaneously in removing microalgae hydrothermal liquefaction waste water |
| WO2020038295A1 (en) * | 2018-08-20 | 2020-02-27 | 梁云 | Device and method for online heating separation of microbial oil and microbial oil |
| CN109181843A (en) * | 2018-08-20 | 2019-01-11 | 梁云 | The device and method and microbial oil of on-line heating separate microorganism grease |
| CN112029114A (en) * | 2020-09-23 | 2020-12-04 | 山东奥淼科技发展有限公司 | Method and device for extracting medical fulvic acid from biomass pyrolysis liquid |
| CN112779044A (en) * | 2021-01-05 | 2021-05-11 | 江苏大学 | Sludge and microalgae supercritical co-rapid hydrothermal liquefaction oil production system and process based on water-phase algae cultivation |
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Application publication date: 20110525 |