JP2011031230A

JP2011031230A - Liquefied co2 offshore dumping platform

Info

Publication number: JP2011031230A
Application number: JP2009191446A
Authority: JP
Inventors: Gunji Haga; 軍治芳賀
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-30
Filing date: 2009-07-30
Publication date: 2011-02-17

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology of a liquefied CO2 offshore dumping platform which is capable of performing the submarine treatment of CO2 gas by recovering liquefied CO2 which is generated at a thermal power plant or an iron mill, subjected to the liquefaction treatment and accumulated in a storage tank for the exclusive use with a liquefied CO2 tank transport ship and connecting the same with a floating dock to emit the liquefied CO2 in the transport ship into deep sea of 50 barometer pressure at one stretch. <P>SOLUTION: The technology of the liquefied CO2 offshore dumping platform is comprised of the thermal power plant or the iron mill, the CO2 liquefaction treatment facility, the tank for the storage of liquefied CO2, the sea surface 4, the liquefied CO2 tank transport ship 5, the seabed 6 of a continental shelf and the floating dock 7 (liquefied CO2 offshore dumping platform), a pipe 8 extended even under the interface 9 of the depth of water of 500 M and the hydraulic pressure of 50 barometric pressure, the outlet 10 of the liquefied CO2, and the deep ocean floor 11. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

Detailed Description of the Invention

本発明は、火力発電所や製鉄所で発生する、ＣＯ２ガスの排出削減と、ＣＯ２ガスの液化処理と、液化ＣＯ２ガスの海底投棄処理に関係する。 The present invention relates to CO2 gas emission reduction, CO2 gas liquefaction processing, and liquefied CO2 gas submarine dumping processing that occurs in thermal power plants and steelworks.

本発明に関する、従来技術はなく、大量のＣＯ２ガスが、大気中に排出されていた。それが国際的に、年間十億トンを越えるとされ、地球温暖化の源因となっている。 There is no prior art relating to the present invention, and a large amount of CO2 gas has been discharged into the atmosphere. Internationally, it is said to exceed 1 billion tons per year, which is a source of global warming.

Problems to be Solved by the Invention

京都議定書により、ＣＯ２ガス排出の削減が、国際的に義務付けられた。
ＣＯ２ガスも、液化処理すれば、比重が１．５３となり、海水より重く、ＣＯ２ガスを海底に沈める事が出来るが、その為には、海中で液化の状態を維持する事が必要で、水深５００米水圧５０気圧の深海までに、直接パイプを繋ぎ，液化ＣＯ２を放出する事が必要である。
然るに、欧米の多くの火力発電所は、大陸に位置し、巾数百キロに及ぶ大陸棚を越え、遙か先に、水深５００米以上の深海があり、大陸の火力発電所から、現実に数百キロ米の、パイプ延ばす事は、パイプの強度や対用年数、パイプの施設費用等の関係で、未だ検討の段階にない。ちなみに現在は、ＣＯ２の地下貯溜の可否が、検討の俎上にある。The Kyoto Protocol mandates international reduction of CO2 gas emissions.
If CO2 gas is also liquefied, the specific gravity is 1.53, which is heavier than seawater and can sink CO2 gas to the bottom of the sea. For this purpose, it is necessary to maintain the liquefied state in the sea, It is necessary to connect the pipe directly and release liquefied CO2 to the deep sea of 500 US water pressure 50 atmospheres.
However, many thermal power plants in Europe and the United States are located on the continent, cross the continental shelf that spans several hundred kilometers, and there is a deep sea with a depth of more than 500 US far from the continental thermal power plant. Extending pipes of several hundred kilometers is not yet under consideration due to factors such as pipe strength, years of service, and pipe facility costs. By the way, at present, the possibility of CO2 underground storage is a matter of consideration.

Means for Solving the Invention

火力発電所又は製鉄所（１）から発生するＣＯ２ガスを、ＣＯ２液化処理施設（２）で液化処理し、その液化ＣＯ２を、付属の液化ＣＯ２貯蔵タンク（３）に一時的に溜置きして、発生するＣＯ２ガスを、大気に排出させない。 The CO2 gas generated from the thermal power plant or ironworks (1) is liquefied in the CO2 liquefaction treatment facility (2), and the liquefied CO2 is temporarily stored in the attached liquefied CO2 storage tank (3). The generated CO2 gas is not discharged to the atmosphere.

その貯蔵タンクに溜まる液化ＣＯ２は、液化ＣＯ２タンク輸送船（５）で回収され、大陸棚を越えて外海の、海面上に浮かぶドック（７）に、輸送され、そして接続される。 The liquefied CO2 collected in the storage tank is collected by the liquefied CO2 tank transport ship (5), transported over the continental shelf to the dock (7) floating on the sea surface, and then connected.

その浮きドック（７）は、真下に垂直に延びる一本のパイプ（８）を持ち、水深４９０米水圧５０気圧の境界面（９）の下方に達し、先端に液化ＣＯ２放出の出口（１０）がある。
またパイプ（８）の上端には、液化ＣＯ２タンク輸送船（５）の高圧ガスタンクに接続可能の、接続端子を有する。The floating dock (7) has a single pipe (8) that extends vertically directly below, reaches below the boundary surface (9) at a water depth of 490 and a water pressure of 50 atm, and has an outlet (10) for releasing liquefied CO2 at the tip. There is.
The upper end of the pipe (8) has a connection terminal that can be connected to the high-pressure gas tank of the liquefied CO2 tank transport ship (5).

液化ＣＯ２タンク輸送船で、回収された液化ＣＯ２は、ドック（７）まで輸送され、その接続端子に接続されて、液化ＣＯ２は一気に水深４９０米、水圧５０気圧の境界面（９）の下方に放出され、液化の状態を保ちながら、比重の関係で、深海底（１１）までに沈下する。
かくして深海底に達した液化ＣＯ２は、常に低い場所を目指し流れ行く。The liquefied CO2 recovered by the liquefied CO2 tank transport ship is transported to the dock (7) and connected to its connection terminal. The liquefied CO2 is immediately below the boundary surface (9) at a depth of 490 rice and a water pressure of 50 atm. It is released and sinks to the deep sea floor (11) due to the specific gravity while maintaining the liquefied state.
Thus, the liquefied CO2 reaching the deep sea bottom always flows toward a low place.

設置の条件が水際に接しながら、河川や大陸棚に隔てられ、深海に直接パイプを延ばす事が困難な、火力発電所や製鉄所等に適用する。 It is applied to thermal power plants and steelworks where it is difficult to extend pipes directly into the deep sea while the installation conditions are in contact with the water and are separated by rivers and continental shelves.

The invention's effect

１、液化ＣＯ２海底処理に関し、大陸に立地の火力発電所や製鉄所等に必要である。
２、地下貯溜に比較し、液化ＣＯ２は海底でも、常に低い所に移動し、廃棄物処分場として容量無限、処理の速度や、コストの面や安全性等、全ての点で優れている。
３、迫り来る、地球温暖化の脅威に、確実に歯止めの掛られる、具体的な唯一の方法であり、京都議定書の、各国の協力や参加を、容易にするものである。
４、発展途上国の、火力発電所の新設を可能にし、京都議定書の参加を促す効果。
５、地球温暖化防止策の、決め手として、世界中からも、期待と協力が得られる。
６、電力会社の排出枠が拡大し、世界の火力発電量を、更に増やす事が出来る。
７、本発明で、ＣＯ２液化処理施設の建設等、新たな産業、ビジネスが発生する。
８、地球温暖化防止に、必要とされる、自動車動力の、ガソリンから、電力への変更にも、対応出来る。1. Regarding liquefied CO2 seabed treatment, it is necessary for thermal power plants and steelworks located on the continent.
2. Compared with underground storage, liquefied CO2 always moves to a low place even on the seabed, and as a waste disposal site, capacity is infinite, processing speed, cost and safety are all excellent. Yes.
3. It is the only concrete method that will surely stop the looming threat of global warming, and will facilitate the cooperation and participation of each country in the Kyoto Protocol.
4. The effect of promoting the participation of the Kyoto Protocol by enabling the establishment of new thermal power plants in developing countries.
5. Expectations and cooperation can be obtained from all over the world as a decisive factor for global warming prevention measures.
6. The power company's emission allowance will be expanded and the world's thermal power generation can be further increased.
7. In the present invention, new industries and businesses such as the construction of a CO2 liquefaction treatment facility are generated.
8. It is possible to respond to the change of automobile power from gasoline to electricity, which is necessary to prevent global warming.

は、本発明の、火力発電所又は製鉄所の、構成図である。These are the block diagrams of the thermal power plant or ironworks of this invention. は、本発明の、液化ＣＯ２海上投棄基地に、関する図である。These are the figures regarding the liquefied CO2 marine dumping base of this invention.

１、火力発電所又は製鉄所
２、ＣＯ２液化処理施設
３、液化ＣＯ２貯蔵タンク
４、海面
５、液化ＣＯ２輸送船（液化高圧ガス輸送船）
６、大陸棚の海底
７、浮きドック（液化ＣＯ２海上投棄基地）
８、パイプ（液化ＣＯ２深海注入用）
９、水深４９０ｍ、水圧５０気圧の境界面
１０、液化ＣＯ２放出口
１１、深海の海底1, Thermal power plant or steelworks 2, CO2 liquefaction treatment facility 3, Liquefied CO2 storage tank 4, Sea level 5, Liquefied CO2 transport ship (Liquefied high pressure gas transport ship)
6. Seabed of continental shelf 7. Floating dock (liquefied CO2 offshore disposal base)
8. Pipe (for liquefied CO2 deep sea injection)
9, water depth 490m, boundary 10 with water pressure of 50 atm, liquefied CO2 outlet 11, deep sea bottom

Claims

The pipe floating on the deep sea surface has a pipe extending vertically down to a depth of 500 US depth, and the upper end of the pipe can be connected to the high-pressure gas of a liquefied CO2 transport ship. Liquefied CO2 offshore dumping base with injection and discharge characteristics