355results about "Hydrogen separation using liquid contact" patented technology

The present application relates to hydrogen production technology field, especially to a kind of methanol hydrogen production method, comprising the following steps: S10: methanol water is heated and vaporized to obtain methanol water vapor;S20: methanol reforming reaction obtains hydrogen mixture gas;S30: after cooling treatment to hydrogen mixture gas, through water washing tower absorption unreacted methanol water, then, adjust the relative humidity and temperature of hydrogen mixture gas;S40: hydrogen mixture gas is input into carbon dioxide absorption tower to remove carbon dioxide;S50: after removing carbon dioxide, product hydrogen is obtained and input hydrogen tank storage to supply user end.The above-mentioned methanol hydrogen production method, by methanol water vapor reforming hydrogen treatment, obtains hydrogen mixture gas.Again, hydrogen mixture gas is purified to obtain product hydrogen with very low carbon monoxide content, with raw material easy to transport, the hydrogen purity of output is high, equipment construction cost is low, and energy consumption is low and the like advantages, reach the purpose of expanding hydrogen application range.

Processes and apparatus for low-CO2 emissions methanol production using a high efficiency (>90%) reformer fired with a low-carbon fuel (C:H<0.03) to produce syngas. CO2 is removed from the syngas, and the CO2-lean syngas is fed to a methanol synthesis loop. A purge stream from the methanol synthesis loop is processed to recover a hydrogen-rich stream and a tail gas stream. The hydrogen-rich stream is supplied as fuel to fire the reformer, along with a portion (<10%) of the tail gas, to produce a CO2-lean flue gas (<3 vol %, dry basis). The flue gas is optionally cooled below a dew point to form condensate, which can be collected and removed. The methanol production can have a carbon efficiency of 97% or more, and a CO2 emissions reduction (compared to natural gas firing) of 88% or more.

Reduction of the water content of ammonia used in an ammonia cracking process allows the use of water intolerant cracking catalysts. The water removal process can also be used to recover and recycle ammonia from the cracked gas.

The invention relates to a process (100, 100', 100") and an apparatus for producing a hydrogen-containing product, wherein, in a production operating mode, an ammonia feed (1, 2) is reacted with catalytic assistance in an ammonia cracker (20), to which heat is supplied, to obtain a cracking gas (3, 4) containing ammonia, hydrogen, and nitrogen. A characteristic feature is that the ammonia cracker (20) can also be operated in a standby operating mode, wherein the cracking gas (3, 4) or a portion thereof is recycled as feed to the ammonia cracker (20).

To provide a process and an apparatus for the production of hydrogen gas from ammonia, and a use of the apparatus, so that the overall process has improved modularity while the process is made simple and has the optimized cost and conversion rate.SOLUTION: The invention relates to a process for the production of hydrogen gas (4) from ammonia, thereby obtaining an effluent gas (6) including hydrogen gas. The process includes the steps of providing an ammonia feedstock stream (8) and performing at least one electrical heating and conversion step, the step including: heating in at least one electric heater (12) the ammonia feedstock stream so as to produce a heated gas stream (14); and performing in at least one adiabatic reactor (16) an endothermic cracking reaction of the heated gas stream (14). The adiabatic reactor includes at least one catalyst bed (18) performing the endothermic cracking reaction of the ammonia feedstock stream into the effluent gas.SELECTED DRAWING: Figure 1

A device and method for producing hydrogen by biomass gasification, relating to the technical field of producing hydrogen by biomass gasification, comprises a gasifier, a primary cyclone separator, a cracking furnace, a heat recovery device, a secondary cyclone separator, a filter, a water washing unit, a desulfurization unit, a conversion unit, a pressure swing adsorption unit, a return device, a steam drum, an ash hopper I and a fly ash cooler; a distribution plate is arranged in the gasifier, and a biomass feed port is arranged above the distribution plate; a slag discharge ring pipe is connected at the central notch of the cone bottom of the distribution plate of the gasifier, and a gasifying agent nozzle is arranged in the slag discharge ring pipe; a gasifying agent inlet is arranged in the gas chamber area of ​​the gasifier; a dense phase section and a dilute phase section are arranged from bottom to top above the distribution plate of the gasifier; the top outlet of the gasifier is connected with the inlet of the primary cyclone separator, and the scheme greatly increases the primary conversion efficiency of the fly ash, and correspondingly reduces the invalid fly ash circulation amount between the gasifier and the primary cyclone separator.

The invention discloses a low-pressure gas hydrogen recycling device in a diesel hydrogenation preparation process, belongs to the technical field of low-pressure gas recycling, and provides the following scheme that the low-pressure gas hydrogen recycling device comprises a desulfurization mechanism, and a pressurization mechanism is arranged on the desulfurization mechanism; the hydraulic assembly is driven by the control assembly to conduct hydraulic transmission, so that the sealing plug can move, the sealing plug moves to conduct pressurization operation on a closed space formed by the spiral flow guide channel and the spray head set, and after pressurization is conducted for a period of time, the exhaust assembly makes contact with a baffle to be automatically opened for exhausting; the connecting assembly drives the exhaust assembly to be opened to realize flowing of low-pressure separation gas, so that the control assembly is matched with the hydraulic assembly to drive the sealing plug to switch between pressurization and depressurization in a reciprocating manner, gas-liquid mass transfer is accelerated during pressurization, and more low-pressure separation gas enters a liquid phase to react with a desulfurizing agent; and during pressure reduction, part of gas dissolved in the liquid phase escapes to break original gas-liquid balance and promote more low-pressure gas to enter the liquid phase from the gas phase, so that the mass transfer efficiency is further improved, and the desulfurization reaction is enhanced.

The acid removal system comprises a shift gas washing tower, a medium-pressure flash tower, a CO2 desorption tower, an H2S concentration tower, an N2 gas stripping tower, a thermal regeneration tower, a methanol-water separation tower and a tail gas washing tower which are sequentially communicated through a first pipeline, the lower end of the shift gas washing tower is communicated with a shift gas pipe which is communicated with the top of the medium-pressure flash tower through a second pipeline, and the top of the shift gas washing tower is communicated with a PSA hydrogen production device through a third pipeline; the CO2 desorption tower is sequentially communicated with the compressor and the urea production part through a fourth pipeline; the comprehensive automation level of the acid removal device can be improved, and the operation labor intensity is reduced; the operation stability of the acid removal device is improved, and the standard deviation of each key process parameter is reduced.

A sour gas stream is sub-stoichiometrically combusted to produce soot and a sour syngas stream. At least 10% of the carbon in the sour gas stream is converted into the soot. At least a portion of the hydrogen sulfide of the sour syngas stream is reacted with sulfur dioxide to produce a syngas stream comprising the carbon dioxide, the carbon monoxide, the hydrogen, water, elemental sulfur vapor, a residual portion of the hydrogen sulfide, and a residual portion of the sulfur dioxide. The syngas stream is reacted with steam to produce a shifted sour gas stream including more carbon dioxide, more hydrogen, more hydrogen sulfide, and less carbon monoxide in comparison to the syngas stream. Water and hydrogen sulfide is separated from the shifted sour gas stream to produce a sweet gas stream. The sweet gas stream is separated into a hydrogen product stream and an exhaust stream.

Steam reforming processes can include treatment of syngas by water gas shift, water separation, and hydrogen separation by pressure swing adsorption (PSA). Additionally, CO2 can be scrubbed from the syngas prior to the PSA. PSA tail gas, including CH4, CO, and H2, can be recompressed and recycled to the PSA for further hydrogen separation and to the steam reformer feed to convert eventually all carbon in the feedstock into CO2 for the scrubber to separate. Fuel requirements can be fulfilled by part of the hydrogen product to eliminate stack CO2 emissions.

The invention relates to the technical field of oil residue ammonia production tail gas treatment, in particular to an oil residue ammonia production tail gas treatment device and a tail gas treatment method.The oil residue ammonia production tail gas treatment device comprises a base, a large-particle filtering unit is fixedly installed on the upper side of the base, and a heat exchange assembly is fixedly installed on one side of the large-particle filtering unit; a spraying purification assembly is fixedly installed on one side of the heat exchange assembly, a purified gas conveying pipe is fixedly installed on the upper side of the spraying purification assembly, a gas conveying opening of the spraying purification assembly is fixedly connected with the heat exchange assembly, and a hydrogen extraction assembly is fixedly installed at an exhaust opening of the heat exchange assembly; the output end of the driving motor drives the lifting screw rod to rotate, the lifting screw rod drives the sleeve to move, inflated gas is compressed to reach set pressure, gas containing hydrogen is subjected to permeability extraction through the polyimide film, hydrogen in tail gas is extracted, and the purpose that the hydrogen in the tail gas is extracted is achieved. And the problem of resource waste caused by direct emission of hydrogen is avoided.

The invention provides a waste hydrogen power generation device applied to manufacturing equipment of semiconductors and the like, the device can reduce the burden of purifying waste hydrogen, and hydrogen can be applied to power generation again, so that auxiliary power supply to facilities is realized. This waste hydrogen gas power generation device is provided with: a hydrogen gas generation unit such as an epitaxial growth device; a purification unit that recovers the waste hydrogen gas from the hydrogen gas generation unit and removes impurities other than hydrogen gas by contacting with water to prepare purified hydrogen gas; a storage unit for storing the purified hydrogen gas; and a power generation unit for driving a power generator by combusting the purified hydrogen gas supplied by the storage unit with oxygen gas in the atmosphere.

The invention discloses a method and a system for separating low-carbon hydrocarbons. The method comprises the following steps: cooling synthesis gas, introducing the cooled synthesis gas into a low-temperature methanol tower, and carrying out low-temperature methanol washing to separate gas-phase CO and H2 and a liquid-phase low-temperature methanol base solution; the liquid-phase low-temperature methanol base solution enters an evaporation tower to be separated to obtain gas-phase low-carbon hydrocarbons, carbon dioxide and liquid-phase low-temperature methanol; gas-phase low-carbon hydrocarbons and carbon dioxide enter a carbon dioxide absorption tower, carbon dioxide is absorbed by adopting an alcohol amine solution, the gas phase is low-carbon hydrocarbons, and the liquid phase is carbon dioxide-rich absorption liquid. According to the invention, the recovery rates of CO and H2 reach 96.40% and 99.28%, which are far higher than those of the existing PSA technology. Meanwhile, the absorption efficiency of CO2 reaches 99.95%; except that the ethylene absorption efficiency is 0.7357 * 100 which is equal to 73.57%, the absorption efficiency of other low-carbon hydrocarbons (C2, C3 and C4 olefin alkanes) is greater than 99% and even reaches 100%.

A hydrocarbon stream is combusted within a reactor to produce soot and syngas. Sub-stoichiometric combustion of the hydrocarbon stream within the reactor converts at least 10% of the carbon in the hydrocarbon stream into soot. The syngas is mixed with a steam stream to produce a hydrogenation feed stream. A shift reactor converts at least a portion of the carbon monoxide and steam to carbon dioxide and hydrogen to produce a shifted gas stream. Water is separated from the shifted gas stream to produce a dehydrated gas stream. The dehydrated gas stream is separated to produce a hydrogen product stream and a recycle stream. The recycle stream is recycled to the reactor.

The present application provides an apparatus and method for recovering nitrogen discharged from waste water by washing with liquid nitrogen, comprising: a U-tube circulating water heater, a first pipeline, and a second pipeline. The inlet end of the U-tube circulating water heater is connected to the middle section of the second pipeline through the first pipeline, and the outlet end is used to connect to the fuel gas pipeline network; one end of the second pipeline is connected to the hydrogen separator; a control valve and a shut-off valve are provided on the second pipeline, and the control valve is located between the first pipeline and the hydrogen separator, and the shut-off valve is located between the first pipeline and the end of the second pipeline away from the hydrogen separator. The present invention effectively recovers CO in the discharged nitrogen. Each set of equipment can recover more than 170 NM3 / h of fuel gas and 100 NM3 / h of effective gas, with an annual benefit of more than 640,000 yuan, and a significant energy-saving effect. At the same time, due to the reduction of cold torch discharge, steam consumption is indirectly saved, and the phenomenon of long-term ice accumulation in the buffer tank is completely eliminated, which greatly improves the sanitation around the buffer tank and on the ground.

A process for the production of hydrogen comprises: a first steam reforming step of a feedstock containing hydrocarbons to obtain a first synthesis gas; a first synthesis gas shift and cooling step on the first synthesis gas; a separation step for separating the first synthesis gas into a high concentration hydrogen stream and a tail gas stream; a second low pressure steam reforming step performed on the tail gas to obtain a second synthesis gas; a second synthesis gas shift and cooling step on the second synthesis gas; a CO2 removal step performed on the stream of hydrogen and carbon dioxide exiting the second synthesis gas shift and cooling step in order to separate a CO2 stream from a fuel grade hydrogen stream; a step of feeding at least a part of the fuel grade hydrogen stream to the first steam reforming step.

Provided are a process and a system for treating both a high-pressure (HP) and a low-pressure (LP) acid gas-containing gas streams. The system includes a HP absorber unit, a flash drum coupled downstream of the HP absorber unit, and a LP absorber unit coupled downstream of the flash drum. The process includes introducing a HP rich amine solution from a HP absorber unit into a flash drum, operating the flash drum such that a flashed sour gas and a flash drum rich amine solution are produced, and introducing the flashed sour gas and the LP acid gas-containing gas stream into a LP absorber unit.

A process for producing hydrogen from a syngas stream is provided in which carbon dioxide is removed from the syngas stream by absorption. After carbon dioxide has been desorbed from the absorption medium, the absorption medium present in the resulting carbon dioxide stream is removed by adsorption on the solid adsorbent, for example due to the molecular sieve effect. A portion of the thus obtained carbon dioxide stream now free of the absorbing medium is heated and used to regenerate the loaded solid adsorbent. The invention further provides a device for carrying out the method according to the invention.

The utility model relates to a hydrogen purification device which comprises an impurity removal device, a water removal device and a base, a second breather pipe on the upper right portion of the impurity removal device penetrates through a pipeline notch in the lower left side of the water removal device to enter the water removal device, the impurity removal device and the water removal device are fixed on the base, and a water injection hole is formed in the upper left portion of the impurity removal device. The water removal device is provided with a shell, and the left side of the impurity removal device is provided with a third ventilation pipe, a sulfuric acid injection port and a sulfuric acid outlet from top to bottom. The engine drives the stirring shaft, the stirring blades, the water inlet and the water outlet to cooperate with each other to improve the impurity removal rate, and the first air suction fan and the second air suction fan cooperate with the second breather pipe and the third breather pipe, so that the hydrogen collection rate is improved while the hydrogen collection is more sufficient and thorough. Conditions of concentrated sulfuric acid and the second breather pipe are observed through the visible port, and the situation that water contained in hydrogen is not removed due to the fact that the second breather pipe is not immersed by the concentrated sulfuric acid is prevented.

The present invention relates to a process for treating a stream comprising CO2 and H2, the process comprising (i) preparing a stream comprising CO2 and H2; (ii) treating the stream prepared in (i) with one or more liquid amine-containing streams, obtaining a gaseous H2-containing stream and a liquid CO2-loaded amine-containing stream; (iii) expanding the liquid CO2-loaded amine-containing stream, obtaining one or more gaseous CO2-containing streams and a liquid CO2-reduced amine-containing stream; (iv) optionally dividing the liquid CO2-reduced amine-containing stream into a first liquid CO2-reduced amine-containing stream and a second liquid CO2-reduced amine-containing stream; (v) stripping CO2 from the liquid CO2-reduced amine-containing stream obtained from (iii) or from the first liquid CO2-reduced amine-containing stream obtained from (iv), obtaining a liquid CO2-depleted amine-containing stream and a gaseous CO2-containing stream; (vi) preparing a liquid H2O-containing stream; (vii) transferring heat from the liquid CO2-depleted amine-containing stream to the liquid H2O-containing stream, obtaining a cooled amine-containing stream and a heated H2O-containing stream; (viii) expanding the heated H2O-containing stream, obtaining a gaseous H2O-containing stream and a liquid H2O-containing stream; (ix) recycling at least a part of the liquid H2O-containing stream into the H2O-containing stream prepared in (vi).

A method comprising partially condensing and separating a feed stream comprising helium and hydrogen to produce a first medium-pressure vapor stream and a first medium-pressure liquid stream; reducing the pressure of the first medium-pressure liquid stream or a stream derived from the first medium-pressure liquid stream to produce a low-pressure vapor stream and a low-pressure liquid stream; cooling the first medium-pressure vapor stream by indirect heat exchange against the low-pressure liquid stream to produce a first partially condensed medium-pressure stream; and separating the first partially condensed medium-pressure stream to produce a second medium-pressure vapor stream and a second medium-pressure liquid stream.

There are provided systems and methods for using fuel rich partial oxidation to produce an end product from waste gases, such as flare gas. Lambda sensor modifications and other control parameters that provide closed-loop mixture control at extremely fuel-rich operating conditions utilizing feed-forward and feedback approaches, physics-based engine models, novel use of a lambda sensor (02-based sensor), sensors with intermittent contact with the gas stream. In an embodiment the system and method use air-breathing engines having control systems, control parameters, sensors and input / output (I / O) for the fuel rich (ER of 1.2 and greater), partial oxidation of the flare gas to form syngas. In embodiments the syngas is further converted into an end product. In an embodiment the end product is methanol.

The utility model discloses an advanced cooling system for a liquid nitrogen wash molecular sieve, which is characterized in that a liquid nitrogen spray head is arranged on a pipeline between a regenerated nitrogen inlet pipe and the liquid nitrogen wash molecular sieve, an inlet of the liquid nitrogen spray head is connected with a liquid nitrogen pipe, an adjusting valve is arranged on the liquid nitrogen pipe, and a temperature sensor is arranged on a regenerated nitrogen outlet pipe; and the signal output end of the temperature sensor is electrically connected with the signal input end of the regulating valve. Meanwhile, the methanol washing device is started at the same time, the methanol washing device and the methanol washing device are started synchronously, after the temperature of crude hydrogen at an outlet of the methanol washing device meets the requirement, gas can be guided into the cold box through direct pressurization, the cooling step is omitted, and the starting efficiency is greatly improved; the temperature of nitrogen discharged by the liquid nitrogen wash molecular sieve is detected through the temperature sensor, and the liquid nitrogen flow can be adjusted according to the temperature measured by the temperature sensor, so that the temperature of the liquid nitrogen wash molecular sieve can be adjusted to-60 DEG C.

The present application relates to a process for producing synthetic ammonia by using hydrogen-containing tail gas, comprising the following steps: S1: sodium cyanide tail gas is pressurized, then heated and water-cooled. S2: the impurity-removed tail gas is desulfurized. S3: the desulfurized tail gas is mixed with chlor-alkali tail gas, the mixed gas is heated and deoxidized. S4: the deoxidized tail gas is pressurized and enters a PSA (pressure swing adsorption) device for pressure swing adsorption treatment, obtaining high-purity hydrogen. In the PSA device, dehydrating, carbon dioxide, methane, carbon monoxide and nitrogen adsorbents are sequentially arranged. The carbon dioxide adsorbent is activated carbon modified by carbonate and strong alkali, and the nitrogen adsorbent is 13X zeolite molecular sieve modified by Na + and Ba 2+ and Ca 2+ ion exchange. S5: nitrogen reacts with the high-purity hydrogen obtained in step S4 to generate ammonia. The present application can improve the adsorption capacity of the adsorbent for impurity gas, thereby reducing the replacement frequency of the adsorbent, prolonging the service period and service life of the adsorbent, and improving the production efficiency.

The present invention provides a method and system for purifying hydrogen used in polysilicon production, as well as a method and system for polysilicon production. The purification method includes the following steps: introducing hydrogen used in polysilicon production into boiling trichlorosilane so that the internal moisture reacts with trichlorosilane, and then making the gas phase escaping from trichlorosilane contact with the atomized trichlorosilane sprayed downwards so that the remaining water vapor in it reacts with trichlorosilane to obtain a water-removed gas phase; the water-removed gas phase is then condensed to liquefy the vaporized trichlorosilane in it, and hydrogen used in polysilicon production with impurities removed is obtained. The present invention can dry the moisture in hydrogen used in polysilicon production to less than 1 ppm without introducing external impurities.

A method and apparatus is provided for producing hydrogen in an steam methane reformer (SMR) via ammonia cracking, wherein the SMR can include a furnace (50), a pressure swing adsorption (PSA) unit, waste heat recovery sections (10, 90), and a water scrubber, wherein the furnace (50) has a plurality of SMR tubes and a plurality7 of burners. The method can include the steps of: withdrawing ammonia from an ammonia storage vessel; preheating the ammonia to form a warm ammonia stream; introducing the warm ammonia stream into the SMR tubes of the furnace (50) under conditions effective for catalytically cracking the ammonia, thereby forming a crude stream (53) comprising hydrogen, nitrogen, and unreacted ammonia; treating the crude stream (53) with a water wash in order to remove the unreacted ammonia from the crude stream (53), thereby resulting in an aqueous ammonia stream and a washed crude stream (103); and introducing the washed crude stream (103) into the PSA unit to produce a hydrogen product stream and a PSA off-gas.

The invention relates to a method for providing a hydrogen stream (7) in a plant (2) for providing the hydrogen stream (7), wherein a carbon-containing energy carrier stream (3) is fed to a synthesis gas reactor arrangement (4) for obtaining a synthesis gas stream (5) comprising hydrogen and carbon oxides, wherein the synthesis gas reactor arrangement (4) obtains the synthesis gas stream (5) from the energy carrier stream (3) by autothermal reforming, wherein the synthesis gas stream (5) is fed to a shift device (15a-c), wherein a water gas shift reaction takes place in the shift device (15a-c) for converting at least part of the carbon monoxide of the synthesis gas stream (5) with steam of the synthesis gas stream (5) into carbon dioxide and hydrogen,wherein the synthesis gas stream (5) is fed downstream of the shift device (15a-c) to a carbon dioxide scrubber (30) for scrubbing at least a portion of the carbon dioxide from the synthesis gas stream (5), wherein a flash gas stream is released from a regeneration stage of the carbon dioxide scrubber (30), which flash gas stream is fed to a heating device of the plant (2) for underfiring, wherein the synthesis gas stream (5) is fed downstream of the carbon dioxide scrubber (30) at least partially to a separation arrangement (6) for separating the synthesis gas stream (5) at least into a hydrogen stream (7) containing hydrogen and into an exhaust gas stream (8) containing carbon oxides. The method is characterized in that the energy carrier stream (3) is fed to a saturation stage (11) before being fed to the synthesis gas reactor arrangement (4), in which saturation stage (11) preheated condensate (12) is added to the energy carrier stream (3),which has accrued in the plant (2), and that a vapor content of at least 80% of the synthesis gas stream (5) is already present when fed to the shift device (15a-c) when the synthesis gas stream (5) exits the synthesis gas reactor arrangement (4). The invention also relates to a corresponding plant (2) for providing a hydrogen stream (7),

The utility model provides a water electrolysis product gas cleaning device and a water electrolysis system, and relates to the field of hydrogen production through water electrolysis. The water electrolysis product gas cleaning device comprises a separation tank and a mixing assembly, the mixing assembly is used for receiving to-be-cleaned product gas and fresh make-up water, the mixing assembly is used for mixing the to-be-cleaned product gas and the fresh make-up water to form a mixture, the mixing assembly communicates with the separation tank through a first channel, and the first channel is used for guiding the mixture into the separation tank; and the separation tank is used for separating clean product gas from the mixture. The mixing assembly is used for replacing filler in a traditional separation tank, the requirement for the large operation range of coupling of an electrolytic bath and renewable energy sources can be met, meanwhile, the mixing assembly is arranged outside the separation tank, filler does not need to be arranged in the separation tank, and therefore the overall height of the cleaning device for the water electrolysis product gas is reduced, and the cleaning device adapts to the low height limit requirement; and the application range is wider.

A method for producing hydrogen is described, the method comprising the steps of subjecting a gaseous mixture comprising hydrocarbons and steam and having a steam to carbon ratio of at least 0.9:1 to adiabatic pre-reforming in a pre-reformer, followed by autothermal reforming with oxygen-rich gas in an autothermal reformer to form a reformed gas mixture, optionally adding steam to the reformed gas mixture, increasing the hydrogen content of the reformed gas mixture by subjecting the reformed gas mixture to one or more water-gas shift stages in a water-gas shift unit to provide a hydrogen-rich reformed gas, cooling the hydrogen-rich reformed gas and separating condensed water therefrom, passing the resulting dehydrated hydrogen-rich reformed gas to a carbon dioxide separation unit to provide a carbon dioxide gas stream and a crude hydrogen gas stream, passing the crude hydrogen gas stream to a purification unit to provide purified hydrogen and fuel gas, wherein the fuel gas is fed to one or more fired heaters for heating one or more process streams in the process.

The invention relates to a method for feeding a hydrogen-containing gas stream (1) into a pipeline (2), wherein a carbon-containing energy carrier stream (3) is fed to a synthesis gas reactor arrangement (4) for obtaining a fresh synthesis gas stream (5) comprising hydrogen and carbon oxides, wherein the fresh synthesis gas stream (5) is fed to a shift device (6a-c) for obtaining a shift synthesis gas stream (7), wherein a water-gas shift reaction takes place in the shift device (6a-c) for converting at least a portion of the carbon monoxide of the fresh synthesis gas stream (5) with steam of the fresh synthesis gas stream (5) into carbon dioxide and hydrogen, wherein the shift synthesis gas stream (7) is fed to a compressor arrangement (8) for increasing the pressure and for obtaining a high-pressure synthesis gas stream (9),wherein the high-pressure synthesis gas stream (9) is fed to a carbon dioxide scrubber (10) for scrubbing at least a portion of the carbon dioxide from the high-pressure synthesis gas stream (9) and for obtaining the hydrogen-containing gas stream (1), and wherein the hydrogen-containing gas stream (1) is fed into the pipeline (2). The invention also relates to a corresponding system for feeding a hydrogen-containing gas stream (1) into a pipeline (2).