WO2007116242A1

WO2007116242A1 - Zero emission device

Info

Publication number: WO2007116242A1
Application number: PCT/IB2006/003293
Authority: WO
Inventors: See Chun Sui
Original assignee: See Chun Sui
Priority date: 2006-04-27
Filing date: 2006-11-21
Publication date: 2007-10-18
Also published as: JP2009534168A; WO2007116242A8

Abstract

ZED has a pure oxygen feeder system whereby liquid oxygen, after undergoing heat exhange is pumped into combustion furnace 13 to burn fuels to generate resultant hot gas to go through turbine. Upon ensuing at the end cooled by coolant, the resultant gas goes through a special chamber whereby an absorbent solution is sucked through a holed passage floor down into the special chamber, the ensuing gas now is taken up by the absorbent solution (e.g. petroleum or alcohol). Thus carbon dioxide and water can be drained away in the absorbent solution for designated purpose. ZED also contains auxiliary parts for disposing of CO2.

Description

ZERO EMISSION DEVICE

This invention relates to a ZED (Zero Emission Device) for exhaust.

Industrial exhaust, for example, from electricity plants, not only pollutes air, but

also causes earth's temperature to rise because of its CO2, carbon dioxide contents.

Exhaust removal device for carbon dioxide is scarce because it was not necessary

until recent climate development.

By this invention, it is provided a liquefaction system (LS) whereby pure

oxygen (02 ) is made from air to feed into energy production chamber/furnace to

give the following advantages:

1st: more complete combustion because of high oxygen content;

2nd: the absence of nitrogen to produce NOx;

3rd: to save pumping energy.

In addition, there is a liquefaction system (LS) to liquefy CO2 in the end.

Chemical precipitation chamber (CPC) is an alternative. A special chamber

(SC) allows petroleum or solvent/s for CO2 to be dissolved in the solvent.

A chilling device (CD) for the fluid solvent is present, using low temperature

gas in the ZED. Heating device (HD) for the ensuing solvent is used for

driving out CO2. The petroleum used would be heated first to drive away any

organic gas constituent first. (Supply of 02 may be from LS (11) or from liquid

02 kept in container and pumps and compression heads are necessary parts for

on the spot production.) A specific example of ZED is embodied below.

Referring to the drawings,

Fig. 1 represents an LS (11) for extracting liquid 02 in perspective.

Fig. 2 represents an SC 14 (connected to suction source, via valve 22) in perspective.

Fig. 3 represents an LS (15) for CO2 extraction in perspective vertically cut open.

Fig.4 represents the main components of a ZED set up in perspective, looking from

one side.

Fig. 5 represents a storage tank/reservoir in perspective for carbon dioxide storage by

water solution and similar technique.

ZED has an LS (11) whereby liquid 02 and cold nitrogen are extracted and via

this 02 feeder system, liquid 02 is then pumped into the combustion furnace

(CF 13) to burn a fuel and the ensuing gas runs through a turbine T (12) and the

ensuing gas is washed with a cold organic solvent (for example, petroleum or alcohol)

or a chemical solution (containing for example magnesium or sodium carbonate/

hydroxide) in SC (14). A series of heat exchange system (HES) enables ensuing gases

(N2 and CO2) to carry out heat exchange to save the heat in the system.

(The 02 feeder system may take oxygen from 02 containers instead.)

After SC (14), CO2 from the ensuing gas is liberated into an algae pool (with

transparent top and/or access to sunlight. (The CO2 may selectively go through LS

(15) to become liquid.) (An alternative ZED uses the steam boiler turbine system, in which case the

ensuing gas from CF 13 does not pass through T (12)).

(A further alternative does not use LS (11) and CF13 bums air and fuel as is usual.

The ensuing CO2 is absorbed by an organic solvent or chemical solution in SC (14)

to be liberated later by heat or chemical process.)

(High temperature resistant alloy or metal is used for making the injection

pipe for 02 into CF13.)

(Control temperature and pressure adjustment device, including compression head

and heat exchangor , for example, is used in connexion with liquefaction process.)

Operation: (Heat insulating systems are present without say.)

1. Air cooled down to very low temperature is led via hooked pipe 26 into LSI 1

which is encircled by a gas in liquid form at a temperature below the boiling point

of air. Cold gas nitrogen is liberated via top valve 28 for recycle purpose via HES.

2. The ensuing liquid oxgyen is collected via valve 16 and its pipe to be pumped

into CFl 3 to burn coal or other fuel, after going through HES to for cooling use

(e.g. CO2) and also elevation in its heat content before it is pumped into CF13.

3. The liquid gas surrounding LSIl is also led away for heat exchange purpose

in HES.

4. The resultant gas from CFl 3 now goes through T 12 to genrate electricity

and is cooled at the end, for example, by cold petroleum/ chemical solution

pumped into passage 20 and running into SC14. 5. The absorbed C02 and condensed water now escape through valve 27 for

further process/separation. (Alternatively, the exhaust is cooled to give liquid

carbon dioxide without using aborbent petroleum or chemical solution, via HES.

(See Fig. 5 for example.)

6. The ensuing fluid from valve 27 is reheated/treated to give out CO2 via

heat supplied through HES encircling heat source in the whole system.

7. The CO2 is then discharged into a green algae reservoir under sunshine.

(Heliostats may be used to increase solar contents of the reservoir.)

(Combined techniques include the use of solar heliostats to inject heat supply

at desired points.)

(One way of disposing of the carbon dioxide is by injecting, with heat control,

hot end exhaust into sea water in the presence of a carbonate such as magnesium

carbonate to form bicarbonate and also at the same time producing distilled water.

Figure 6 shows in perspective such a distillation equipment.)

(The bicarbonate or liquid CO2 produced in the above processes may be

transported to oil sites and be dissolved in water and pumped into oil wells while

oil is extracted, with or without sea water.) Figure 7 shows in perspective a

storage tank for keeping carbon dioxide in water solution in oil tanker chambers. (Figure 3 shows a valved tube 25 for introducing C02 into LS 15. 02 from cold source

expands into LS 15 via valve 35, take the heat of the exhaust C02 and runs out at

valve 45 to go finally into CF 13 to burn a fuel. Non-gas CO2 is removed via valve 65

by pumps, when formed. Pressure door 75 opens to remove solid CO2.)

(Figure 5 shows in perspective an equipment/chamber with sprayhead 01 for water/sea

water, a valved duct 02 for CO2 (pumped or moves in under pressure), a pressure

door/screw door 03 and a transport duct with valve 04. This equipment can be used for

converting CO2 and water in the presence of a suitable carbonate into bicarbonate. )

(Figure 6 shows in perspective a distillation apparatus with sea water, preliminarily

cleaned, in the inner cylinder IC 05. IC 05 is surrounded by an outer cylinder OC 06

containing sea water. Exhaust CO2 at controlled temperature (e.g. 120 degrees Celcius)

enters OC 06 to heat up the water and to react with a carbonate/chemical there to form

for example bicarbonate; IC 05 is heated up by heat exchange and steam goes up

the top conveyance pipe CP 07 to be cooled to water in a condenser not shown.)

(Figure 7 shows in perspective the operation of using water/sea water and carbon

dioxide to form a solution and to displace oil from a container/reservoir, e.g. a

chamber in an tanker, or, in an oil well. In oil well operation, CO2 and water/sea

water are pumped under pressure into the oil well to replace/drive out oil into the

surface via a pump equipment.)

Claims

C L A I M S

1. A zero emission device for electricity generation characterized by the presence

of a pure oxygen feeder system and a special chamber containing absorbent

solution/liquid for carbon dioxid e.

2. A zero emission device as in 1. with a heating device for carbon dioxide

recovery from the absorbent solution/liquid.

3. A zero emission device as in 2. with an end green algae reservoir to take

in the carbon dioxide generated.

4. A zero emission device for electricity generation characterized by the presence

of a pure oxygen feeder system and an exhaust carbon dioxide liquefaction system.

5. A carbon dioxide exhaust disposal system characterized by the use of a pump system

whereby water such as sea water and carbon dioxide are pumped into an oil

reservoir.

7. A zero emission device characterized by the use of a pure oxygen feeder to introduce

pure oxygen into a combustion furnace/chamber to burn a fuel.

8. A zero emission device as in 7. above characterized by the using of a liquefaction

device for for carbon dioxide exhaust using the compressed oxygen released by the

oxygen feeder as liquefying medium.