CN105909345A - Air separation type diesel engine CO2 collection system and working method thereof - Google Patents

Air separation type diesel engine CO2 collection system and working method thereof Download PDF

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Publication number
CN105909345A
CN105909345A CN201610214192.5A CN201610214192A CN105909345A CN 105909345 A CN105909345 A CN 105909345A CN 201610214192 A CN201610214192 A CN 201610214192A CN 105909345 A CN105909345 A CN 105909345A
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CN
China
Prior art keywords
diesel engine
separator
air
outlet
compressor
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Pending
Application number
CN201610214192.5A
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Chinese (zh)
Inventor
刘永峰
石焱
姚圣卓
秦建军
金涛涛
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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Publication date
Application filed by Beijing University of Civil Engineering and Architecture filed Critical Beijing University of Civil Engineering and Architecture
Priority to CN201610214192.5A priority Critical patent/CN105909345A/en
Publication of CN105909345A publication Critical patent/CN105909345A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/10Carbon or carbon oxides

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses an air separation type diesel engine CO2 collection system. The air separation type diesel engine CO2 collection system includes an air separator (1), a diesel engine (2), a first gas separator (3), a water cleaning device (4), a first compressor (5), a second gas separator (6), a second compressor (7), a third compressor (8), and a CO2 collector (9). The invention also provides a working method for the air separation type diesel engine CO2 collection system. The method includes that: the air separator (1) separates oxygen and nitrogen in air; the oxygen enters the diesel engine (2) to be combusted, CO2 and H2O generated during combustion are separated through the gas separators, wherein the H2O is recovered through the water cleaning device (4), and the CO2 is stored in the CO2 collector (9) through pressure boost and liquidation by means of three compressors. According to the technical scheme, the diesel engine will not generate nitrogen oxide during combustion, the CO2 generated during combustion can be collected, the problem that the diesel engine generates pollutants can be solved thoroughly, and zero release of the diesel engine can be achieved.

Description

A kind of air inlet separate type diesel engine CO2Collection system and method for work thereof
Technical field
The present invention relates to Diesel Engine Technique Field, be specifically related to a kind of air inlet separate type diesel engine CO2Collection system and method for work thereof.
Background technology
Diesel oil and can produce NOx and CO after air burning in the combustion chamber of diesel engine2, a part of nitrogen during wherein NOx is air generates when high-temp combustion.
Wherein NOxBeing the major pollutants forming acid rain, most importantly NOx stimulates the respiratory center of people to the harm of human body, causes being short of breath, and along with soakage increases, and the symptoms such as headache, unconsciousness can be caused.Power plant often proposes a lot of denitration schemes for NOx, but these methods may not apply on diesel engine for automobile or on diesel engine in small space or closed interval.
CO in air2Content sharply increases in recent years and also results in greenhouse effects.Past CO2It is not listed as the factor of environmental pollution, but is as the raising of environmental standard, CO2Harm increasingly become the focus of research.Patent (ZL201210119473.4) gives a kind of CO2The thinking of capturing device, but not with diesel combustion before air-treatment form overall plan, collect CO for diesel engine2Design the most insufficient, practical application also needs to study further.
It is thus desirable to propose a kind of overall plan having more feasibility, not generate NOx after realizing the diesel combustion in diesel engine, CO can be solved again simultaneously2The problem collected.
Summary of the invention
The purpose of the present invention is precisely in order to solve technical problem set forth above, it is proposed that a kind of air inlet separate type diesel engine CO2 collection system, the air before diesel combustion processes to remove nitrogen, and is simultaneously achieved the CO in diesel emission tail gas2Collect.The present invention achieves NOx and CO of diesel engine vent gas at one stroke2Zero-emission, meets the Reform Situation of China's energy-saving and emission-reduction at present now.
The invention provides a kind of air inlet separate type diesel engine CO2 collection system, mainly include air separator, diesel engine, one-level gas separator, water purifier, stage compressor, secondary gas separator, split-compressor, three-stage blower and CO2Collector;
The pure oxygen outlet of air separator is connected with the air inlet of diesel engine by pipeline;
The blast pipe of diesel engine is connected with one-level gas separator by pipeline;
One-level gas separator has CO2Outlet and moisture outlet, wherein moisture outlet connects water purifier, CO2Outlet connects stage compressor;
The gas outlet of stage compressor connects secondary gas separator by the road;
The vaporous water outlet of secondary gas separator connects water purifier by the road;
The gas outlet of secondary gas separator connects split-compressor by the road;
The gas outlet of split-compressor connects three-stage blower by the road;
The liquid outlet of three-stage blower connects CO2Collector.
Wherein, air separator has shell, and this cover top portion is provided with air intake, and shell side bottom is provided with the gas vent of separator well, and described gas vent includes pure oxygen outlet and other gas vent.Pure oxygen outlet is connected with the air inlet of diesel engine by pipeline, and other gas vent is passed through air.
Wherein, the combustion chamber of diesel engine has diesel oil entrance, pure oxygen inlet and pure water entrance.
Wherein as preferably, one-level gas separator by 90% gaseous state H2O and CO2Separate.
Wherein as preferred, CO2Enter split-compressor and be pressurized to 16bar, be pressurized to 110bar subsequently into three-stage blower.
Present invention also offers the method for work of a kind of air inlet separate type diesel engine CO2 collection system:
Oxygen, by the oxygen in air and nitrogen separation, is sent into combustion chamber and the diesel oil mixed combustion of diesel engine by air separator, and after combustion the phase spray into water to reduce ignition temperature;
The gaseous state H produced after burning2O and CO2Enter one-level gas separator, the gaseous state H after separation2O enters water purifier, remaining gaseous state H2O and CO2Enter stage compressor supercharging through one-level gas separator, be then fed into secondary gas separator;
Gaseous state H in secondary gas separator, after separation2O enters water purifier and reclaims, the CO after separation2Enter split-compressor supercharging, become liquid CO subsequently into three-stage blower supercharging2, finally by CO2Collector is collected.
As preferably, air filters before entering air separator.
As preferably, between one-level gas separator and stage compressor, it is provided with cooling device.
As preferably, sprayed water to prevent deflagration at the latter end of diesel engine mixed combustion in combustion chamber by pure oxygen with diesel oil.
The present invention passes through air isolated pure oxygen, generates H with diesel oil mixed combustion in diesel engine2O and CO2, improve the acting ability of diesel engine, also eliminate NO simultaneouslyxGeneration with solid particulate matter.Wherein H2O is recycled through water purifier, CO2Through three second compression machines, pressure improves the CO that then liquefies2Collected by collector, thoroughly solve diesel combustion and produce the problem polluted, it is achieved that the zero-emission of diesel engine.
Accompanying drawing explanation
Fig. 1 is one air inlet separate type diesel engine CO of the present invention2The overall plan flow chart of collection system.
In figure: 1, air separator, 2, diesel engine, 3, one-level gas separator, 4, water purifier, 5, stage compressor, 6, secondary gas separator, 7, split-compressor, 8, three-stage blower, 9, CO2Collector.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail:
See accompanying drawing 1, a kind of air inlet separate type diesel engine CO2 collection system of the present invention, mainly includes air separator 1, diesel engine 2, one-level gas separator 3, water purifier 4, stage compressor 5, secondary gas separator 6, split-compressor 7, three-stage blower 8 and CO2Collector 9.
Air separator 1 has shell, and this cover top portion is provided with air intake, and shell side bottom is provided with the gas vent of separator well.Gas vent includes pure oxygen outlet and other gas vent, and wherein, pure oxygen outlet is connected by the air inlet of pipeline with diesel engine 2.Other gas vent is passed through air.
The combustion chamber of diesel engine 2 has diesel oil entrance, pure oxygen inlet and pure water entrance.The blast pipe of diesel engine 2 is connected with one-level gas separator 3 by the road.
One-level gas separator 3 has CO2Outlet and moisture outlet, wherein moisture outlet connects water purifier 4, CO2Outlet connects stage compressor 5.
The gas outlet of stage compressor 5 connects secondary gas separator 6 by the road.The vaporous water outlet of secondary gas separator 6 connects water purifier 4 by the road.
The gas outlet of secondary gas separator 6 connects split-compressor 7 by the road, and the gas outlet of split-compressor 7 connects three-stage blower 8 by the road, and the liquid outlet of three-stage blower 8 connects CO2Collector 9.
Present invention also offers the method for work of a kind of air inlet separate type diesel engine CO2 collection system, be described in detail below:
As it is shown in figure 1, air separator 1 is by the oxygen in air and nitrogen separation, oxygen is sent into combustion chamber and the diesel oil mixed combustion of diesel engine 2, and after combustion the phase spray into water to reduce ignition temperature, prevent pinking, be conducive to improving mechanical efficiency;The gaseous state H produced after burning2O and CO2, enter one-level gas separator 3;One-level gas separator 3 by 90% gaseous state H2O and CO2Separate, the H after separation2O enters water purifier 4 through condensing, purifying and reclaim;The gaseous state H of residue 10%2O and CO2Enter stage compressor 5 through one-level gas separator 3 and be pressurized to 4bar, be then fed into secondary gas separator 6;Gaseous state H in secondary gas separator 62O and CO2It is completely separated, the gaseous state H after separation2O enters water purifier 4 and reclaims, CO2Enter split-compressor 7 and be pressurized to 16bar, be pressurized to 110bar subsequently into three-stage blower 8 and become liquid CO2, finally by CO2Collector 9 is collected.
As preferred technical scheme, air needs to filter before entering air separator 1.
As preferred technical scheme, between one-level gas separator 3 and stage compressor 5, it is provided with cooling device, i.e. the gaseous state H of residue 10%2O and CO2Needed to carry out being cooled to preference temperature, to ensure that stage compressor 5 can normally work before one-level gas separator 3 enters stage compressor 5.
The present invention passes through air isolated pure oxygen, generates H with diesel oil mixed combustion in diesel engine2O and CO2, improve the acting ability of diesel engine, also eliminate NO simultaneouslyxWith the generation of solid particulate matter, and the method for multi-stage compression is used to reclaim liquid CO2, thoroughly solve diesel combustion and produce the problem polluted, it is achieved that the zero-emission of diesel engine.
The diesel engine of present system can be used in small space or closed interval as Power Drive Unit, such as tunnel, tunnel etc..Simultaneously it can also be used on diesel engine for power generation, for distributed power generation, heating station etc..Or can be used on vehicle.
The invention is not restricted to the above description to embodiment; those skilled in the art are according to disclosure of the present invention; the improvement that need not be carried out through creative work on the basis of the present invention and amendment; the selection of such as air separator and water purifier is arranged, all should be within protection scope of the present invention.

Claims (10)

1. an air inlet separate type diesel engine CO2Collection system, mainly includes air separator (1), diesel engine (2), one-level gas separator (3), water purifier (4), stage compressor (5), secondary gas separator (6), split-compressor (7), three-stage blower (8), CO2Collector (9);It is characterized in that:
Air separator (1) is connected with the air inlet of diesel engine (2) by pipeline;
The blast pipe of diesel engine (2) is connected with one-level gas separator (3) by pipeline;
One-level gas separator (3) has CO2Outlet and moisture outlet, wherein moisture outlet connects water purifier (4), CO2Outlet connects stage compressor (5);
The gas outlet of stage compressor (5) connects secondary gas separator (6) by the road;
The vaporous water outlet of secondary gas separator (6) connects water purifier (4) by the road;
The gas outlet of secondary gas separator (6) connects split-compressor (7) by the road;
The gas outlet of split-compressor (7) connects three-stage blower (8) by the road;
The liquid outlet of three-stage blower (8) connects CO2Collector (9).
2. the system as claimed in claim 1, it is characterized in that: air separator (1) has shell, this cover top portion is provided with air intake, and shell side bottom is provided with the gas vent of separator well, and described gas vent includes pure oxygen outlet and other gas vent.
3. system as claimed in claim 2, it is characterised in that: pure oxygen outlet is connected by the air inlet of pipeline with diesel engine (2), and other gas vent is passed through air.
4. system as claimed in claim 2 or claim 3, it is characterised in that: the combustion chamber of diesel engine (2) has diesel oil entrance, pure oxygen inlet and pure water entrance.
5. the system as described in claim 1 or 2 or 3, it is characterised in that: one-level gas separator (3) by 90% gaseous state H2O and CO2Separate.
6. the system as described in claim 1 or 2 or 3, it is characterised in that: CO2Enter split-compressor (7) and be pressurized to 16bar, be pressurized to 110bar subsequently into three-stage blower (8).
7. a method of work for air inlet separate type diesel engine CO2 collection system, based on the system described in any one of claim 1-6, it is characterised in that:
Oxygen, by the oxygen in air and nitrogen separation, is sent into combustion chamber and the diesel oil mixed combustion of diesel engine by air separator, and after combustion the phase spray into water to reduce ignition temperature;
The gaseous state H produced after burning2O and CO2Enter one-level gas separator, the gaseous state H after separation2O enters water purifier, remaining gaseous state H2O and CO2Enter stage compressor supercharging through one-level gas separator, be then fed into secondary gas separator;
Gaseous state H in secondary gas separator, after separation2O enters water purifier and reclaims, the CO after separation2Enter split-compressor supercharging, become liquid CO subsequently into three-stage blower supercharging2, finally by CO2Collector is collected.
8. method of work as claimed in claim 7, it is characterised in that: air entrance air separator (1) is front to be filtered.
9. method of work as claimed in claim 7, it is characterised in that: it is provided with cooling device between one-level gas separator (3) and stage compressor (5).
10. method of work as claimed in claim 7, it is characterised in that: sprayed water to prevent deflagration at the latter end of diesel engine (2) mixed combustion in combustion chamber by pure oxygen with diesel oil.
CN201610214192.5A 2016-04-07 2016-04-07 Air separation type diesel engine CO2 collection system and working method thereof Pending CN105909345A (en)

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CN201610214192.5A CN105909345A (en) 2016-04-07 2016-04-07 Air separation type diesel engine CO2 collection system and working method thereof

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Application Number Priority Date Filing Date Title
CN201610214192.5A CN105909345A (en) 2016-04-07 2016-04-07 Air separation type diesel engine CO2 collection system and working method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968760A (en) * 2017-04-26 2017-07-21 青岛双瑞海洋环境工程股份有限公司 The decarbonization integrated system of marine exhaust desulphurization denitration

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040003592A1 (en) * 1995-06-07 2004-01-08 Fermin Viteri Hydrocarbon combustion power generation system with CO2 sequestration
CN101052852A (en) * 2004-07-16 2007-10-10 斯塔托伊尔公司 Method and device for liquifiing carbon dioxide
CN201954916U (en) * 2010-12-20 2011-08-31 华北电力大学 CO2 separation and compression integrated device
CN103347591A (en) * 2011-02-08 2013-10-09 株式会社Ihi Exhaust gas treatment system for oxy-fuel combustion devices
CN103410614A (en) * 2013-08-21 2013-11-27 华北电力大学 Hybrid power system for recycling CO2 in gas turbine exhaust with two-stage normal-pressure MCFC (molten carbonate fuel cell)

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040003592A1 (en) * 1995-06-07 2004-01-08 Fermin Viteri Hydrocarbon combustion power generation system with CO2 sequestration
CN101052852A (en) * 2004-07-16 2007-10-10 斯塔托伊尔公司 Method and device for liquifiing carbon dioxide
CN201954916U (en) * 2010-12-20 2011-08-31 华北电力大学 CO2 separation and compression integrated device
CN103347591A (en) * 2011-02-08 2013-10-09 株式会社Ihi Exhaust gas treatment system for oxy-fuel combustion devices
CN103410614A (en) * 2013-08-21 2013-11-27 华北电力大学 Hybrid power system for recycling CO2 in gas turbine exhaust with two-stage normal-pressure MCFC (molten carbonate fuel cell)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968760A (en) * 2017-04-26 2017-07-21 青岛双瑞海洋环境工程股份有限公司 The decarbonization integrated system of marine exhaust desulphurization denitration
CN106968760B (en) * 2017-04-26 2023-02-28 青岛双瑞海洋环境工程股份有限公司 Ship exhaust gas desulfurization, denitrification and decarburization integrated system

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Application publication date: 20160831

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