UA95425C2 - Method and installation for production of energy and re-gasification of liquefied natural gas - Google Patents

Abstract

Re-gasification of liquefied natural gas and generation of electricity is carried out with use of at least three sequential thermodynamically connected closed Rankine cycles. The first cycle is realized on water, the other ones – on organic heat carriers. Heating agent in heat exchangers for evaporation of working medium in each next cycle is a condensate of working medium in the previous cycle. Turbines in all the cycles transform part of heat drop to useful work. Heat exchanger of the last cycle transfers heat to heated liquefied natural gas for its evaporation. Vapors of liquefied natural gas can be used as hydrocarbon fuel for the first cycle, those come to existence at operation of terminals for storage and re-gasification of liquefied natural gas. An installation for re-gasification has at least three connected thermodynamically in sequence closed circuits that operate by Rankine cycle. Combustion chamber of the first cycle can be connected to evaporation line of liquefied natural gas. The invention promotes use of low-temperature power potential at re-gasification for efficient production of electricity and utilization of gas vapors.

Description

closed circuits are thermodynamically connected by a common thread according to a closed Rankine cycle, which consists of a heat exchanger, the heating side of which is a part of the vapor circulation path connected in series by pipelines, a working evaporator, a power turbine, a condenser and a circulating fluid of one the circuit is also performed by the pump, and the circuits are serially thermodynamically connected to the condenser, and the cooling side is time-dynamically connected. 6. The installation according to item 5, which differs in that the fluid medium of a different circuit and performs the function of an evaporator intended for the circulation of organic work, and the composition of the installation of which fluid medium in the working circuits includes a steam-water circuit, in which working mediums are various hydrocarbons, the fluid medium is water and water vapor, moved during the evaporation of this water in the evaporator 7. The installation according to item 5 or 6, which differs in that this circuit is connected on the heating side with the fact that it additionally contains one intermediate source of hydrocarbon combustion products designed for the circulation of organic fluid, and intended for the circulation of the organic medium is a closed circuit, the working fluid of the working fluid is a circuit with a condensate medium in which there is ethane, and in the circuit, a condenser connected on the cooling side to the line of the sator on the cooling side of which connected to the liquefied natural gas line, which differs from the liquefied natural gas, the working fluid network, which is between the steam-water circuit and the circuit, which contains methane. the condenser of which is connected on the cooling side 8. Installation according to any of paragraphs 5. of the fluid is a closed circuit that

The invention belongs to the technology of regasification in a power turbine, the steam that expanded into liquefied natural gas due to the use of the turbine is condensed in the condenser, and the obtained melting of it as an external heat carrier into energy condensate is fed to the evaporator. In the first, steam plants operating according to the Rankine cycle and the water cascade use an organic working fluid as a working fluid - they use water and the resulting water vapor. The invention can be applied during the construction of terminals for storage and regasification of hydrocarbon fuel combustion products, and liquefied natural gas during the evaporation of water due to heat. to the second, organic, cascade as working fluid

The known method of electricity generation and the environment use organic liquid serageification of liquefied natural gas, which is primarily evaporated due to the use of heating and evaporation of intermediate heat given off during the condensation of the working heat exchange medium (in particular, propane), of the fluid medium of the first stage, and its expansion in the turbine, which leads to electro-condensation due to heating and/or evaporation- generator, and condensation of vapor-like intermediation (regasification) of liquefied natural gas of the heat exchange medium, which expanded in (US Patent Application Me2009100845 (A1), turbine variant, during heating and regasification of liquefied fig. 8, ЕО1К25/00, publ. 04/23/2009). natural gas (US Patent /Me4320303, Application of a steam-water cascade in receiving

ЕО1К25/10, Е17С9/04, ГО1К25/00, Е17С9/00, publ. therefore, the prototype of the method allows use- 03.16.1982). you vapors of liquefied natural gas, arising

The known method makes it possible to use low-temperature energy potentiation and regasification of liquefied natural gas during the operation of storage terminals. However, liquefied natural gas, however, is vaporized, as well as the previous one, taken as a prototype, the method of intermediate coolant is carried out due to the use of one working liquid heat of sea water, as a result of which the installation of a medium for the utilization of all heat transfer operates in the temperature range below the temperature of air in one organic cascade, which causes significant environmental damage, and at the same time, technological difficulties related to the fact that the vapors of liquefied natural gas are to be used are quite difficult, almost impossible, to pick up natural gas, inevitable during the operation of the terminals, the organic working fluid medium is such that, for the storage and regasification of the liquefied product, it works in the entire temperature range, not low gas. passing into a supercritical state. At the same time, in the

A well-known method adopted as a prototype is that both very high and very low pressures can occur. Significant difficulties are the achievement of natural gas, which involves the use of effective heat exchange and optimal thermo-two thermodynamically connected cascades with static and dynamic indicators of the cycle and optimal measurement of the closed thermodynamic cycle of oversized and strength indicators of the equipment,

Rankine, in which the working fluid used for the implementation of this method is evaporated in the evaporator, the resulting steam expands

in particular, of heat exchangers, provision of cli can occur both very high and very low-optimal flow parts of turbines. What pressures, significant difficulties is the achievement

The installation for the production of electro-efficient heat exchange and optimal thermal energy and regasification of liquefied natural dynamic cycle indicators and optimal vagus gas operating according to the closed Rankine cycle is known for the large size and strength indicators of the equipment, which includes an evaporator, a power turbine, used for the implementation of this method, a condenser connected to the supply line of liquefied, in particular, heat exchangers, provision of natural gas, and a circulation pump. In the known optimal flow parts of turbines. In the installation, the vaporized intermediate heat carrier (propane) is expanded in the turbine, which allows the method of obtaining energy and regasification by an electric generator, and in the process of condensing liquefied natural gas, which involves an intermediate heat carrier, which has expanded in the turbine, heating and regasification of liquefied natural gas takes place at the junction of two thermodynamically connected cascades in the condenser. (The US patent of the Rankine cycle, in which the working fluid

Ме4320303, РО1К25/10, Р17С9/04, РОи1К25/00, evaporate above in the evaporator, the resulting vapor

E17C9/00, publ. 16.03.1982). expanding steam in a power turbine

In the well-known installation, a low- is used in the turbine, it is condensed in the condenser, and the resulting temperature energy potential is liquefied - the condensate is fed to the evaporator, and in the first natural gas, but evaporation is carried out in the intermediate - steam - cascade as the working fluid of the heat carrier due to the heat above, water and water vapor are used, which is sea water, as a result of which the plant works, they are obtained during the evaporation of water due to heat in the temperature range below the natural temperature of hydrocarbon fuel combustion products, and in the excess medium, and at the same time, they cannot be the second cascades use used liquefied natural gas vapors as a working fluid, use an organic fluid that is inevitable during the operation of terminals for collection, evaporate due to the use of heat, which is regasification and regasification of liquefied natural gas. is given during the condensation of the working fluid se-

Also known is the prototype of the device of the first cascade, which condenses for energy production and regasification of the liquefied heating or// evaporation of liquefied natural gas containing at least natural gas. The proposed improvement of two thermodynamically connected closed circuits is carried out by including additionally at least two working according to the Rankine cycle, intended for one intermediate cascade with the use of the for- for the circulation of the evaporative working fluid of the closed thermodynamic Rankine cycle from the hatchery, each of which contains an evaporator, a power turbine, a condenser of the working fluid between the steam-water nsator and a circulation pump, which are connected in series by the flow of an organic fluid as pipelines, and are closed by a cascade and a cascade in which the working fluid circuits are thermodynamically connected by a common heat reservoir condense due to heating or/and by a heat exchanger, the heating side of which is part of the evaporation of liquefied natural gas, the core of the circulation path of the vaporized working fluid, acting as the working fluid of different vapors of the same circuit and performing the function of levodonium compounds; at the same time, the cascades are in series with the condenser, and the cooling side is a part of the thermodynamically connected due to the use of the circulation path of the evaporated working fluid heat, which is given off during the condensation of the gaseous medium of another circuit and performs the function of the working fluid of one cascade, the evaporator, one circuit of the installation is steam, and for evaporation of the working fluid, the evaporator is connected on the heating side to the source of the next cascade. In particular, in the case of one of the combustion products of hydrocarbon fuel, and the intermediate cascade as the working fluid, the circuit is designed for organic circulation - in the first cascade, water and steam are used, in the second (intermediate) cascade - in the second (intermediate) cascade - ethane, and in the third torus on the cooling side connected to the cascade line - methane, due to the condensation of which liquefied natural gas, (Patent application heats and/or evaporates liquefied natural gas

USA Mo2009100845 (AT), version of fig. 8, EO1K25/00, gas. The resulting technical result is publ. 23.04.2009). because the heat difference between the temperature of the condensate

The use of a steam-water circuit in the adoption of the working fluid of the first cast as a prototype of the installation allows the use of a tank (steam) and the temperature of storage of liquefied natural gas and the resulting liquefied natural gas vapors are activated in several (as they are used in the operation of terminals for storage and nimum, in two) cascades using different regasification of liquefied natural gas. However, there is a lack of organic working fluids, which the previous one adopted as a prototype furnace allows for the possibility of working in subcritical areas, it provides for the use of one working fluid, and therefore, the absence of thermodynamic losses, a medium for the disposal of all heat-transferred with work in critical areas. Due to the fact that the processes of evaporation and condensation in one organic cascade cause significant technological difficulties associated with the fact that they ensure the most effective heat exchange and take place, it is quite difficult, almost impossible, to select constant pressure, there can be such an organic working fluid medium, that after baking low temperature differences in the bre works in the entire range of temperatures, not heat exchange devices and acceptable dimensions and passing into a supercritical state. At the same time, in the

strength characteristics, as well as optimal thermodynamic and technological modynamic and technological indicators. Indexes.

The technical task of the invention is also in the method of obtaining energy and regasification, the improvement of the installation for obtaining energy and liquefied natural gas involves the use of regasification of liquefied natural gas, which consists of more than two cascades (at least three, two thermodynamically connected closed con - vats) with the use of closed thermodynamics operating according to the Rankine cycle, the designated Rankine cycle, in which the liquid working fluid for the circulation of the evaporating fluid, the medium is evaporated in the evaporator, each of which contains a pair of pipes connected in series ( gaseous working fluid) through pipelines evaporator, power turbine, condenser and expanded in the power turbine, the expanded steam circulation pump, and the closed circuits in the turbine (gaseous working fluid) are thermodynamically connected by joint heat exchange condense in the condenser, and the obtained condensing apparatus, the heating side of which is part of the tract sat (liquid working fluid) is supplied in the circulation of the evaporating fluid in one evaporator. The cascades are thermodynamically sequential in the circuit and perform the function of a condenser, and are cooled due to the use of heat, which the outgoing side is part of the circulation path evaporates during the condensation of the working fluid medium of another circuit and the forging of one cascade, for the evaporation of the working vaporizer function, one circuit of the installation is the fluid of another cascade. The method is steam-water, and its evaporator on the heating side provides for the use of a steam-water cascade, as it is connected to the source of combustion products, the coal-working fluid in it uses hydrogen fuel, and the other circuit is designed for water and water vapor obtained during combustion - for the circulation of the organic working fluid of water, due to the heat of combustion products, and its condenser for the cooling of hydrocarbon fuel. The method is also not connected to the liquefied natural gas line. the use of an organic cascade, in which both ro-

The proposed improvement is carried out by means of a boche fluid medium using an organic addition of the installation between the steam-water circuit and a non-fluid medium that condenses due to the circuit, the condenser of which on the cooling side of the heating or/ vapor of liquefied natural gas is connected to the line of liquefied natural gas, gas. Between the steam cascade and the organic cascade, at least one intermediate intended for the circulation of the working fluid medium which is condensed by the organic working fluid medium due to heating and/or vaporization of the liquefied natural- closed loop operating according to the Rankine gas cycle, is additionally used although b one on, which includes a series-connected intermediate cascade with the use of an evaporator closed by pipelines, a power turbine, a condenser of the Rankine thermodynamic cycle, in which a robonator and a circulation pump, and the circuits of the fluid medium, for which the or- thermodynamically connected, using an organic fluid medium, evaporate into vaporizing various hydrocarbon compounds as working fluids, the resulting steam is expanded in a power turbine, the medium in various circuits intended for the steam expanded in the turbine is condensed in the circulation of organic working fluid environment - condensers, and the resulting condensate is fed to higher ones; at the same time, the circuits are sequentially thermodynamically-evaporator, and the cascades are sequentially thermodynamically connected due to the use of heat, which are naturally connected, as organic working media in the condensation of the gaseous working medium in different cascades, different hydrocarbon fluids of the same circuit are used for evaporation - compounds. In the variant between the steam cascade and the cascading of the working fluid of the next house, the working fluid of which condensate circuit. In particular, in the case of one intermediate circuit, liquefied natural gas is used as the working fluid in the first circuit due to heating and/or evaporation, water and steam are used in one circuit, in the second intermediate cascade, ethane is used as the working fluid in the (intermediate) circuit. and in the third circuit - which uses ethane, and in the cascade, working methane, due to the condensation of which the liquid medium is heated, which is condensed due to the evaporation of liquefied natural gas. The technical result of heating or/ vaporization of liquefied natural gas is that the gas is used as a working fluid- the heat difference between the condensation temperature of methane. Combustion products of the hydrocarbon lateral fluid of the first circuit (fuel can be at least partially obtained by vapors) and the storage temperature of the vapors of liquefied natural gas liquefied by naturalization, which are activated in several (at least, arise during the operation of collection terminals - two) circuits using various organic regasification and regasification of liquefied natural gas. of working fluids, which provides the possibility of operation in subcritical regions, and therefore, the cation of liquefied natural gas contains more absence of thermodynamic losses associated with two (at least three) consecutively thermodynamically working in critical regions regions In connection with the fact that the connected closed circuits operating in the process of evaporation and condensation provide the Rankine scrap, designed for the circulation of the vapor, the most effective heat exchange and occur with a working fluid medium, each of which is a constant pressure, can be provided with low temperature, serially connected by pipelines, temperature differences in heat exchange devices and nick, a power turbine, a condenser, and a circulation acceptable dimensional and strength characteristics, and a pump, and the closed circuits are thermodynamically connected by a common heat exchange device, the heating side of which is part of the tract steam circulation Turbine 2 is a power or energy turbine, since one section of the working fluid is designed to generate energy, in particular, it performs the function of a condenser, and the cooling one drives the electric generator 6. The first section is part of the steam circulation path. steam-water, working fluid medium - working fluid medium higher than the other circuit, and the water in the first circuit is water, and the water obtained from it performs the function of an evaporator. One circuit of the installation is steam evaporation. Evaporator 1 on the heating side, which is steam-water, the working fluid in it is water and water vapor, which receive hydrocarbon fuel. The source of combustion products during the evaporation of water in the evaporator, which is heated by hydrocarbon fuel, can be, on the side connected to the source of combustion products, a gas turbine engine or a furnace of a hydrocarbon fuel steam generator. The installation also contains a torus, in which a circuit designed for the circulation of organic vapor of liquefied natural gas can be used as fuel. Thus, the working fluid, and its condenser evaporator 1 on the heating side can be connected on the cooling side to the line of liquefied with the line of liquefied natural gas vapors (not natural gas. Between the steam-water circuit and the con- shown). Evaporator 1 is functionally a tour device, the condenser of which on the cooling side is connected to the line of liquefied natural gas, steam in front of the turbine in order to obtain optimal operating parameters and may contain elements, the installation contains at least one intermediate feature, the presence of which is obvious to a specialist in the field designed for the circulation of organic working liquid-steam energy and which are not shown separately, so that the environment is a closed circuit that works without cluttering the diagram with obvious details; by the Rankine cycle, which includes the following - it can be a utilization or equipped top-connected by pipelines evaporator, a power steam generator with a steam superheater. turbine, condenser and circulation pump. In the composition of the second circuit, there are refrigerants meant for the circulation of organic working fluid, the part of the condenser-evaporator 3, the turbine 7, the final medium in the circuits with working fluids, the condenser part of the condenser-evaporator 8, the media are various hydrocarbon compounds. In the circulation pump 9, connected in series, the installation contains one intermediate circuit connected by a pipeline 10. The turbine 7 is suitable for the circulation of the organic working fluid or energy, since it is a closed circuit of the medium, working fluid chena for energy production, in particular, it is an environment in which ethane is the medium, and in the circuit, condense drives the electric generator 11. The working fluid sator, which on the cooling side is connected to the line, the medium in the second circuit is ethane. The second liquefied natural gas, the working fluid circuit is thermodynamically connected to the first con- medium is methane. The source of combustion products due to a common element - the condensation of hydrocarbon fuel can be connected to the evaporator 3, the condenser part of which enters the line of vapors of liquefied natural gas, which is part of the first circuit, and the cooling part - arising during the operation of terminals for storage to the composition of the second circuit. regasification and regasification of liquefied natural gas. The third circuit includes cooling

Fig. 1 shows a diagram of the variant of the claimed condenser part of the evaporator 8, turbine 12, installations for obtaining energy and regasification, the condenser part of the condenser-evaporator of liquefied natural gas with one intermediate 13, circulation pump 14, connected in series in the circuit between the steam circuit and the circuit , a condenser closed circuit by pipeline 15. Turbine 12 is a nsator on the cooling side of which is connected to the power or energy line, since it is a purpose of liquefied natural gas that realizes boiled for energy production, in particular, it is ant of the claimed method of obtaining energy and drives the electric generator 16. The working fluid of regasification of liquefied natural gas with one medium in the third circuit is methane. The third intermediate stage, included between the steam stage circuit is thermodynamically connected with the second contact stage and the organic stage, the working fluid is sulfur thanks to a common element - the condenser - the surface of which is condensed due to heating of the evaporator 8, the condenser part of which is included either/and vaporization of liquefied natural gas. Figure 2 is part of the second circuit, and the cooling part is shown in T-5 diagram of thermodynamic processes, part of the third circuit. The cooling part, which is the basis of the variant of the claimed condenser-evaporator method 13, is connected to the line for obtaining energy and regasification of liquefied natural gas (LNG) 17. natural gas with one intermediate cascade. with the help of a variant of the stated method, it is that the second circuit of the thermodyna installation for obtaining energy and regasification is strongly connected with the first circuit through the condensate of liquefied natural gas, the diagram of which is shown in the evaporator-storage C, and the third circuit, in turn, is shown in fig. 1. connected to the second circuit through a capacitor-

The installation for obtaining energy and regasification evaporator 8. cation of liquefied natural gas contains three pos- Fig. 1). cheap not only for driving electric generators,

The first circuit includes an evaporator, but also for driving pumps and compressors. 1, turbine 2, condenser part of the condenser- In order to simplify the presentation, in Fig. 1 is not the evaporator 3, the circulation pump 4, various auxiliary equipment is shown in sequence (connected in a closed circuit by a pipeline 5. storage, valves, control elements and etc.), having

the nature of which is obvious to a specialist of the corresponding gaseous working medium of the second (radio-technological) cascade - gaseous ethane, in the condensate

During the operation of the installation for obtaining energy and the tori-evaporator 8, the liquid working fluid of the regasification of liquefied natural gas is evaporated using the medium of the third cascade - liquid methane, which melts several successively thermodynamically connected through the pipeline 15 to the circulation of the cascades using the cycle Rankin, by suction 14. The obtained gaseous methane flows between the first (steam-water) cascade and enters the power steam turbine 12, where it performs organic working liquid sulfur in the last cascade, thanks to which the electric generator 12, the excess of which is condensed for the heating account is driven by turbine 16, produces electricity and/or liquefied natural gas vapor, additional energy. The gaseous methane exhausted in the turbine 12 uses at least one intermediate cascade, the expanded methane enters the condenser using a closed thermodynamic evaporator 13, where it condenses, giving heat to the Rankine cycle using organic liquid liquefied natural gas (LNG) supplied through the environment as a working fluid. pipeline 17. Liquid methane (condensate) from con-

During the operation of the described version of the installation of the real-condenser-evaporator 13, the regasification pump 14 enters the circulating version of the method of obtaining energy and regasification. included between steam natural gas (LPG). cascade and cascade, organic working liquid se- The first (steam-water) cascade, implemented in the row of which condenses at the expense of heated- the first (steam-water) circuit, works in diapan and/or vapor of liquefied natural gas. temperature zone above the ambient temperature

The first stage of obtaining energy or a steam medium as a classic power plant with a cascade in which the Rankine cycle is used as the working fluid, and the intermediate second higher stage uses water and water vapor, the resulting (ethane) cascade, realized in the second (ethano when water evaporates due to the heat of the right) circuit, and the last third (methane) cascade of hydrocarbon fuel combustion ducts, implemented in the third (methane) circuit, is implemented in the first circuit. At the expense of heat, they work in the temperature range below the temperature of combustion products (CO) of hydrocarbon fuel, environmental tours in the same cycle, which can be obtained by burning Rankine scrap vapors. Cascades (and, accordingly, circuits) of liquefied natural gas, in the evaporator 1 of heating energy are sequentially thermodynamically connected, boil and evaporate the water supplied through the pipeline due to the heat of condensation of the gaseous pipeline 5 by the circulation pump 4, and obtain what fluid medium of one cascade successively superheated steam with optimal working parameters is used for vaporization of liquid working trama. The obtained superheated steam enters the flowing medium of the next stage, namely: the catch steam turbine 2, where it performs work, the second stage is thermodynamically connected with the first, thanks to which the electric generator 6, which is driven by the cascade thanks to the use of the heat given by the turbine 2 , produces electrical energy. During the condensation of the gaseous working fluid, the expanded steam of the superheated medium of the first stage - water, flows in the turbine 2, falls into the condenser-evaporator 3, where it condenses, and evaporates in the condenser-evaporator 3, giving off heat to vaporize the liquid the working fluid medium of the working fluid medium of the second cascade - the second circuit - ethane. Water (steam condensate) from liquid ethane, and the third stage of the thermodynamically connected condenser-evaporator C enters the circulated with the second stage thanks to the use of a circulation pump 4. heat given off during gaseous condensation

The second (intermediate) stage of obtaining energy from the working fluid of the second stage is implemented in the second (intermediate) circuit. For - gaseous ethane in the condenser-evaporator 8, due to the heat given off during the condensation of water for the vaporization of the liquid working fluid of the steam in the condenser-evaporator C, evaporates the third cascade - liquid methane. The heat that separates the liquid working fluid - liquid ethane - during the condensation of the gaseous working fluid supplied through the pipeline 10 by the circulation fluid of the third (last) cascading pump 9. The obtained gaseous ethane enters - gaseous methane in the condenser - into power steam the turbine 7, where it carries out the evaporator 13, is used for heating work, due to which the electric generator 11, which and/or vaporization of liquefied natural gas. driven by turbine 7, produces electric Any power plant works in dia- energy. Exhausted in turbine 7 is a gaseous zone (Tv-Tn) of upper temperature Tv (the temperature of the expanded ethane enters the condenser coils of the heater) and lower temperature Tn (the temperature of the evaporator 8, where it condenses, giving off heat to the refrigerator coil). From the course of thermodynamics of the working fluid medium of the third circuit - it is known that the efficiency of the ideal cycle (thermal machine methane. Liquid ethane (condensate) from the Carnot condenser) depends only on these temperatures and the evaporator 8 enters the circulation pump 9. is defined as the ratio of their the difference to ver-

The third stage of obtaining energy, in which the temperature is: 1-(Tv-Tn)/Tv. the working fluid is used by organic The higher the upper temperature of Tv, the higher the night fluid that condenses under the efficiency. The lower temperature in traditional heating and/or vaporization of liquefied natural gas installations is limited by the temperature of the gas, implemented in the third circuit. For the surrounding environment. At the terminal, the liquefied account of the heat given off during condensation, natural gas (NG) is stored at a temperature

- 163 "С (110 K). This is a huge accumulator of energy cascades (and, accordingly, circuits) in a series of thermo-hygiene. The use of this energy in the process of regasification is dynamically connected in such a way that the heat that of gas makes it possible to significantly expand thermodynamic capabilities in the process of condensation in one cascade,

The efficiency of the Carnot cycle of the power plant is first used to evaporate the liquid working (steam-water) cascade of the plant for the zero fluid medium in the next cascade. In energy harvesting and regasification of liquefied gas in the penultimate cascade, the heat removed from the

Tvi and the lower temperature Tni of the first stage: cess of condensation, used for regasification (Tvi-Tni)/ vi-(826-285)-0.655 (the ratio of the cation of liquefied natural gas.

AVOR - see Fig. 2). It is impossible to change it in these temperature environments in the intermediate and last cascade limits. However, by using the roof, the possibility of working in the roof is ensured - two more direct cycles - the second (ethane) from the upper regions and the absence of thermodynamic losses associated with work in the Tvg temperature and the lower temperature of the critical regions, with

LPG and the third (methane) with an upper temperature can be provided with low drops

Твз and the lower temperature Тнз - and by lowering the lower temperature in the heat exchangers and the acceptable temperature of the installation to 110 K, it is possible to achieve high weight and strength characteristics, as well as an increase in useful work (the sum of the areas of direct, optimal thermodynamic and technological parameters of AVSO angles , ERON, IZKI - see fig. 2), nicknames. The energy obtained from the power turbines, the ratio of which to the available amount of heat can be sufficient not only for the internal needs of the facility or terminal for storage and regasification

The efficiency of the three-stage Carnot cycle, which is equal to that of liquefied natural gas, but also for supplying electricity to the network. х-(Tvy-tny)(Tvo-Ttng) "(Tvz-Tna))/Tvi-I(826- Proposed method and installation for obtaining- 285)--(275-183)-4(173-120)) /826-0.831. energy and regasification of liquefied natural gas

Thus, the efficiency of the three-stage gas cycle can significantly be realized at the current level increases and significantly approaches the ideal- science and technology, because the theoretical foundations of the processes are studied, the production technology

In the case of several intermediate cascades, the production base of elements implemented in intermediate circuits is developed, the first (steam-water) cascade implemented in the first (steam-water) circuit operates in the temperature range temperature energy potential is liquefied above the ambient temperature as natural gas and rational utilization, a classic power plant using vapors of liquefied natural gas, the implementation of the Rankine cycle, and the intermediate cascades and the last cas- of the proposed method and installations for obtaining Continuity of energy and regasification of liquefied natural gas using various organic compounds as gas in the creation of a terminal for storage and working fluids, operating in the range of regasification of liquefied natural gas of safety temperatures below the ambient temperature, the energy independence of the terminal, the possibility of environments looking for the same Rankine cycle, with energy exports and minimal impact on the environment.

1 8:

Sho 2 in tm | r Y t as a porous steam-water circuit ( zm Tevv Kehe vryam- steam-water

A gi cascade y y v t 44 o series /y Tne zveki - s shk E i y 1 ! Y cha : ke Tez 2 Kee E planned n r C) ethane

Z, cascade and;

Ka Y a and six in nu shE SHYN Is there, seni? | ZSH zsoyssiysy TI TV 113 Ke-- And drink them - | And the methane methane circuit is a cascade (n» not; ShK | i li i yin she kRe-- ik v y Te MO Kuk reretenenneneteninuttyunnnnn zag yin Ya ". vp MZP (in the terminal y. rohova 7 zey pzhdrntyah Ha g Z 5 i

Fig. Fig

Computer typesetting by M. Lomalov Signature Circulation 23 approx.

Ministry of Education and Science of Ukraine

State Department of Intellectual Property, str. Urytskogo, 45, Kyiv, MSP, 03680, Ukraine

SE "Ukrainian Institute of Industrial Property", str. Glazunova, 1, Kyiv - 42, 01601