CN106147981A - A kind of plant cellulose cleavage method and cracking apparatus thereof - Google Patents

A kind of plant cellulose cleavage method and cracking apparatus thereof Download PDF

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Publication number
CN106147981A
CN106147981A CN201610619961.XA CN201610619961A CN106147981A CN 106147981 A CN106147981 A CN 106147981A CN 201610619961 A CN201610619961 A CN 201610619961A CN 106147981 A CN106147981 A CN 106147981A
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China
Prior art keywords
plant cellulose
cleavage method
equipment
cracking
assay flask
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Pending
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CN201610619961.XA
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Chinese (zh)
Inventor
葛红江
雷齐玲
杨卫华
程静
雷齐松
陈月芳
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Dagang Oilfield Group Co Ltd
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Dagang Oilfield Group Co Ltd
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Priority to CN201610619961.XA priority Critical patent/CN106147981A/en
Publication of CN106147981A publication Critical patent/CN106147981A/en
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B1/00Production of fats or fatty oils from raw materials

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The invention provides a kind of plant cellulose cleavage method and equipment, and detailed process is: plant cellulose to be cracked is processed into aqueous less than 10% by (1), the little particle of below diameter 10mm;(2) mixing string crude granule and crude oil, every kilogram of straw particle adds crude oil 2~6 kilograms, and the even rear chamber that is mixed is gentle and quiet puts 2~24 hours, makees raw material for standby;(3) raw material is put in the stainless steel assay flask meeting cracking condition;(4) assay flask is carried out vacuum anaerobic process;(5) with heater, assay flask is brought rapidly up, when temperature reaches 300~500 DEG C, constant temperature 10~60 minutes;(6) with running water cooling test bottle to room temperature, combustible gas, miscella and cinder are collected respectively.Relative to prior art, the plant cellulose cleavage method described in the invention and equipment have thermal cracking efficiency height, do not introduce other heat-conducting mediums, and potential safety hazard is little, and cracking apparatus is simple, facilitates the advantages such as operation.

Description

A kind of plant cellulose cleavage method and cracking apparatus thereof
Technical field
The invention belongs to plant energy and develops field, is specifically related to one and utilizes naphthene base crude to promote plant Cellulolytic becomes the method for combustible gas and bio-oil, it is adaptable to produces the oilfield enterprise of naphthene base crude, utilizes existing bar Part develops plant energy.
Background technology
Low-grade plant can be converted into liquid fuel or the gas combustion of high-quality by cellulose pyrolysis technology Material.Cellulose, as the topmost part of living beings, carries out hot tearing and is favorably improved China's biomass energy and turns to it Change the level that utilizes, promote the development and utilization of biomass energy.In recent years, priority develops and utilizes high-temp solid powder both at home and abroad (such as quartz sand), high temperature air, high-temperature steam, plasma, high temperature nitrogen etc. carry out thermal cracking to cellulose, produce cracking gas or The method of bio-oil.Prior art majority needs to use heat-conducting medium or catalyst, need heat-conducting medium after cracking and Catalyst separates from pyrolysis product.Although high-temperature plasma pyrolysis technology does not needs heat-conducting medium, but with high costs.
Crude oil is that various organic matter such as animal, plant, particularly low etc. animals and plants are as algae, bacterium, clam shell, fish etc. It is after death imbedded in the environment of continuous sinking anoxic, through many physics chemical action, finally gradually form as oil.In oil The content of cycloalkane is classified from less to more, and crude oil is broadly divided into paraffinic base crude oil, intermediate base crude, naphthene base crude.
The components such as crude oil component is complicated, middle cycloalkane therein and cellulose can be mutually promoted thermal cracking, and the present invention utilizes This characteristic carries out thermal cracking to cellulose-blends of crudes.
Content of the invention
In view of this, the invention is intended to utilize the components such as cycloalkane and cellulose in crude oil can mutually promote thermal cracking Characteristic, a kind of plant cellulose cleavage method and cracking apparatus thereof are proposed, to solve the problem that prior art exists.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of plant cellulose cleavage method, specifically comprising the following steps that of described method
(1) plant cellulose carrying out thermal cracking will be needed to be dried process extremely aqueous less than 10%, and be crushed to straight The little particle of below footpath 10mm;
(2) under normal temperature mixing gained string crude granule in step (1) and crude oil, proportioning is every kilogram of straw Particle adds crude oil 2~6 kilograms, puddles that uniform rear chamber is gentle and quiet puts 2~24 hours, as raw material for standby;
(3) gained raw material in step (2) is put into can pressure-bearing 10MPa, heatproof 700 DEG C cracking apparatus in;
(4) in cracking apparatus, be passed through nitrogen deoxygenation, after deoxygenation, cracking apparatus carried out application of vacuum, vacuum less than- During 0.06MPa, in keeping cracking apparatus, current vacuum level is constant;
(5) with heater, cracking apparatus is brought rapidly up, when temperature reaches 300~500 DEG C, constant temperature 10~60 Minute;
(6) with running water cooling cracking apparatus to room temperature, collect and measure the combustible gas of generation with drainage, use 500 mesh Miscella and cinder in stainless (steel) wire separating and cracking equipment, weigh cinder and miscella quality respectively, thus obtain combustible gas, mix Close oil and cinder.
Further, described step (4) is led to during nitrogen deoxygenation nitrogen amount and is no less than 3 times of cracking apparatus volumes.
Further, using heater to be Muffle furnace in described step (5), its heating rate is more than 200 DEG C/h.
Further, in described step (3), raw mixture volume accounts for the 1/4~1/3 of cracking apparatus volume.
Further, described crude oil is naphthene base crude or intermediate base crude.
Further, described plant cellulose is Chinese silvergrass, reed, wheat stalk, maize straw, the one in rice straw Or two or more mixtures, it is dried processing mode for drying or drying.
The another object of the invention is to propose a kind of equipment implementing described plant cellulose cleavage method, institute The equipment of stating includes assay flask and is positioned at the upper and lower two ends of assay flask for sealing the bottle cap of described assay flask, the two ends up and down of assay flask Being respectively arranged with bleeder pipe, bleeder pipe is provided with stop valve.
Further, it is threaded connection between described bottle cap and described assay flask, and junction is provided with sealing gasket.
Further, described sealing gasket is copper packing.
Further, described test Bottle and bottle cap is stainless steel.
Relative to prior art, the plant cellulose cleavage method described in the invention and equipment have the advantage that
1st, take full advantage of the components such as cycloalkane and cellulose in crude oil can mutually promote the characteristic of thermal cracking, crude oil itself Participate in cracking, also play conductive force, improve thermal cracking efficiency;Do not use other heat-conducting mediums, such as quartz sand, hot-air, heat Steam etc., the process procedure separating after eliminating cracking;
2nd, thermal cracking processes raw material not ingress of air, anaerobic, potential safety hazard are relatively small, and cracking apparatus is simple, convenient behaviour Make;
3rd, the combustible gas that the present invention obtains is after dehydration, desulfurization, can mix in commercial natural gas, and every side natural gas mixes not More than 0.1 can combustion gas when, on commercial natural gas properties impact less, be equivalent to add gas production;
4th, the miscella that the present invention obtains can mix commercial crude China and foreign countries and ships and sell and sell, and mixes few in every kilogram of commercial crude When 0.1 kilogram of miscella, less on the impact of commercial crude properties, be equivalent to add crude output.
Brief description
A part of accompanying drawing constituting the invention is used for providing being further appreciated by the invention, and the present invention creates The schematic description and description made, for explaining the invention, is not intended that the improper restriction to the invention.? In accompanying drawing:
Fig. 1 is the structural representation of the plant cellulose cracking apparatus described in the invention embodiment.
Description of reference numerals:
1-bleeder pipe;2-stop valve;3-bottle cap;4-screw thread;5-sealing gasket;6-assay flask.
Detailed description of the invention
Unless otherwise indicated, term used herein is respectively provided with the conventional implication understanding of those skilled in the art, in order to Readily appreciate the present invention, some terms used herein have been carried out following definitions.
Using in the specification and in the claims, odd number type " one " and " this " include plural reference, unless on Hereafter separately have and clearly state.For example, term " (one) cell " includes the cell of plural number, including its mixture.
All of Digital ID, such as pH, temperature, time, concentration, including scope, be all approximation.It is to be understood that, although Term " about " is all added before always clearly not describing all of Digital ID.Simultaneously it will also be understood that, although always not clear and definite Narration, reagent described herein is only example, and its equivalent is known in the art.
The present invention is a kind of thermal cracking plant cellulose blends of crudes at 300~500 DEG C, under the conditions of vacuum anaerobic, Producing method and the cracking apparatus thereof of miscella and combustible gas, specific operation process is:
(1) plant cellulose is Chinese silvergrass, reed, wheat stalk, maize straw, one or more in rice straw Mixture, above straw should dry or dry to aqueous less than 10%, and is crushed to the little particle of below diameter 10mm;
(2) when crude oil needs to meet 10 DEG C, viscosity of crude should be less than 20mPa.s, selects naphthene base crude or middle base Oil, it is impossible to use paraffinic base crude oil;
(3) mixing above-mentioned plant fiber particle and crude oil, proportioning is that every kilogram of plant fiber particle adds crude oil 2~6 Kilogram, puddle that uniform rear chamber is gentle and quiet puts 2~24 hours;
(4) above-mentioned plant fiber particle and blends of crudes are put into pressure-bearing 10MPa, the stainless steel test that heatproof is 700 DEG C In bottle 6, volume of mixture accounts for assay flask 6 volume 2/3~3/4, and (assay flask two ends are equipped with bleeder pipe 1 and stop valve 2, bottle cap Being threadeded by 4 between 3 with described assay flask 6, and junction being provided with copper sealing gasket 5, concrete structure is shown in accompanying drawing 1), put into and plant After fibres particle and blends of crudes, being passed through nitrogen deoxygenation in assay flask, logical nitrogen amount is no less than 3 times of assay flask volumes, Then assay flask is vacuumized, when vacuum is less than-0.06MPa, closes stop valve and keep vacuum in assay flask;
(5) being brought rapidly up assay flask with Muffle furnace etc., heating rate is more than 200 DEG C/h, when temperature reach 300~ When 500 DEG C, constant temperature 10~60 minutes;
(6) with running water cooling test bottle to room temperature, slowly open test bottle stop valve, with drainage measurement generate can Combustion gas volume, with miscella and cinder in 500 mesh stainless (steel) wire separation test bottles, weighs cinder and miscella quality respectively, from And obtain combustible gas, miscella and cinder.
Describe the invention below in conjunction with embodiment and accompanying drawing in detail.
Embodiment 1
Use the Chinese silvergrass pulverized particles 100 grams (the largest particles diameter 5mm) being dried, add Dagang Oilfield sheep three wood area ring Alkyl crude oil 400 grams, the room temperature that stirs stood after 6 hours to be put in stainless steel assay flask 6, be passed through in assay flask 6 10L with Upper nitrogen deoxygenation.Then assay flask 6 is vacuumized, when vacuum is less than-0.06MPa, close stop valve 2.With Muffle furnace to examination Test bottle to be brought rapidly up, 220 DEG C/h of heating rate, when temperature reaches 450 DEG C ± 20 DEG C, constant temperature 0.5 hour.Use running water Cooling test bottle 6 to room temperature.Slowly open test bottle stop valve 2, the combustible gas volume about 12.5L generating with drainage measurement. Miscella and cinder in the stainless (steel) wire separation test bottle having claimed by 500 mesh quality, weigh cinder about 8.9 grams, miscella 470.6 Gram.By calorific value estimation, be equivalent to increase production natural gas about 6L, incremental oil production about 35 grams.
Embodiment 2
Use the wheat straw pulverized particles 100 grams (the largest particles diameter 8mm) being dried, add Dagang Oilfield sheep three wood area ring Alkyl crude oil 400 grams, the room temperature that stirs is put into stainless steel assay flask 6 after standing 24 hours, is passed through more than 9L in assay flask 6 Nitrogen deoxygenation.Then assay flask 6 is vacuumized, when vacuum is less than-0.06MPa, close stop valve 2.With Muffle furnace to test Bottle is brought rapidly up, 220 DEG C/h of heating rate, when temperature reaches 420 DEG C ± 20 DEG C, and constant temperature 20 minutes.By water-cooled from the beginning But assay flask is to room temperature.Slowly open test bottle stop valve 2, the combustible gas volume about 10.2L generating with drainage measurement.With Miscella and cinder in the stainless (steel) wire separation test bottle that 500 mesh quality have claimed, weigh cinder about 12.8 grams, miscella 482.6 Gram.By calorific value estimation, be equivalent to increase production natural gas about 5L, incremental oil production about 41 grams.
Embodiment 3
Use the cornstalk pulverized particles 100 grams (the largest particles diameter 4mm) being dried, add Dagang Oilfield sheep three wood area Naphthene base crude 300 grams, the room temperature that stirs is put into stainless steel assay flask after standing 2 hours, is passed through more than 8L in assay flask Nitrogen deoxygenation.Then assay flask is vacuumized, when vacuum is less than-0.06MPa, close stop valve.With Muffle furnace to assay flask It is brought rapidly up, 220 DEG C/h of heating rate, when temperature reaches 450 DEG C ± 20 DEG C, constant temperature 1 hour.With running water cooling examination Test bottle to room temperature.Slowly open test bottle stop valve, the combustible gas volume about 18.6L generating with drainage measurement.By 500 mesh matter Miscella and cinder in the stainless (steel) wire separation test bottle that amount has claimed, weigh cinder about 7.8 grams, miscella 466.6 grams.By calorific value Estimation, is equivalent to increase production natural gas about 9L, incremental oil production about 33 grams.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all at this Within the spirit of innovation and creation and principle, any modification, equivalent substitution and improvement etc. made, should be included in the invention Protection domain within.

Claims (10)

1. a plant cellulose cleavage method, it is characterised in that specifically comprising the following steps that of described method
(1) plant cellulose carrying out thermal cracking will be needed to be dried process extremely aqueous less than 10%, and be crushed to diameter The little particle of below 10mm;
(2) under normal temperature mixing gained string crude granule in step (1) and crude oil, proportioning is every kilogram of straw particle Add crude oil 2~6 kilograms, puddle that uniform rear chamber is gentle and quiet puts 2~24 hours, as raw material for standby;
(3) gained raw material in step (2) is put into can pressure-bearing 10MPa, heatproof 700 DEG C cracking apparatus in;
(4) in cracking apparatus, be passed through nitrogen deoxygenation, after deoxygenation, cracking apparatus carried out application of vacuum, vacuum less than- During 0.06MPa, in holding equipment, current vacuum level is constant;
(5) with heater, cracking apparatus is brought rapidly up, when temperature reaches 300~500 DEG C, constant temperature 10~60 points Clock;
(6) with running water cooling cracking apparatus to room temperature, collect and measure the combustible gas of generation with drainage, stainless with 500 mesh Miscella and cinder in steel mesh separating and cracking equipment, weigh cinder and miscella quality respectively, thus obtain combustible gas, miscella And cinder.
2. plant cellulose cleavage method according to claim 1, it is characterised in that: nitrogen deoxygenation in described step (4) When lead to nitrogen amount be no less than 3 times of cracking apparatus volumes.
3. plant cellulose cleavage method according to claim 1, it is characterised in that: described step (5) uses heating Device is Muffle furnace, and its heating rate is more than 200 DEG C/h.
4. plant cellulose cleavage method according to claim 1, it is characterised in that: raw material mixing in described step (3) Object amasss and accounts for the 1/4~1/3 of cracking apparatus volume.
5. the plant cellulose cleavage method according to any one of claim 1-4, it is characterised in that: described crude oil is cycloalkanes Base oil or intermediate base crude.
6. the plant cellulose cleavage method according to any one of claim 1-4, it is characterised in that: described plant cellulose For one or more the mixture in Chinese silvergrass, reed, wheat stalk, maize straw, rice straw, it is dried process side Formula is for drying or drying.
7. the equipment of plant cellulose cleavage method described in claim 1 for the enforcement, it is characterised in that: described equipment includes test Bottle and be positioned at the upper and lower two ends of assay flask for sealing the bottle cap of described assay flask, the two ends up and down of assay flask are respectively arranged with bleeder pipe, Bleeder pipe is provided with stop valve.
8. the equipment of enforcement plant cellulose cleavage method according to claim 7, it is characterised in that: described bottle cap and institute State and be threaded connection between assay flask, and junction is provided with sealing gasket.
9. the equipment of the enforcement plant cellulose cleavage method described in claim 7 or 8, it is characterised in that: described sealing gasket is Copper packing.
10. described in claim 7 or 8 enforcement plant cellulose cleavage method equipment, it is characterised in that: described assay flask and Bottle cap is stainless steel.
CN201610619961.XA 2016-07-27 2016-07-27 A kind of plant cellulose cleavage method and cracking apparatus thereof Pending CN106147981A (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101550347A (en) * 2008-04-02 2009-10-07 朱复东 Biomass slurry atomization thermal cracking process and device
CN102630247A (en) * 2009-11-24 2012-08-08 国际壳牌研究有限公司 Process for catalytic hydrotreatment of a pyrolysis oil
CN103254923A (en) * 2013-05-28 2013-08-21 中国石油大学(华东) Biomass hydrogen-donating pyrolysis technique of naphthenic base oil in presence of hydrogen-donating distillate oil
CN104449931A (en) * 2014-10-10 2015-03-25 苏州新协力环保科技有限公司 Preparation method of biomass fuel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101550347A (en) * 2008-04-02 2009-10-07 朱复东 Biomass slurry atomization thermal cracking process and device
CN102630247A (en) * 2009-11-24 2012-08-08 国际壳牌研究有限公司 Process for catalytic hydrotreatment of a pyrolysis oil
CN103254923A (en) * 2013-05-28 2013-08-21 中国石油大学(华东) Biomass hydrogen-donating pyrolysis technique of naphthenic base oil in presence of hydrogen-donating distillate oil
CN104449931A (en) * 2014-10-10 2015-03-25 苏州新协力环保科技有限公司 Preparation method of biomass fuel

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Application publication date: 20161123