A pyrolysis gas reforming system is provided. The pyrolysis gas reforming system includes a pyrolysis unit configured to perform pyrolysis of waste, an oil-gas separation unit configured to separate a product generated by the pyrolysis unit into oil and gas, a pyrolysis gas purification unit configured to refine pyrolysis gas generated through the separation by the oil-gas separation unit, a pyrolysis gas reforming unit configured to generate synthesis gas by reforming the pyrolysis gas purified by the pyrolysis gas purification unit, a hydrogen gas shift reaction unit configured to convert carbon monoxide contained in the synthesis gas generated by the pyrolysis gas reforming unit into hydrogen and carbon dioxide, and a hydrogen separation unit configured to separate hydrogen from the synthesis gas discharged from the hydrogen gas shift reaction unit, wherein combustion gas generated by a burner of the pyrolysis gas reforming unit and used to supply heat to the pyrolysis gas reforming unit is used to supply heat to the pyrolysis unit.

A synthesis gas plant for producing synthesis gas, said synthesis gas plant including an electrically heated reforming reactor system including a first catalyst active for catalyzing steam methane reforming reaction, said electrically heated reforming reactor system being arranged to receive a feed gas comprising hydrocarbons and outletting a first synthesis gas stream. The synthesis gas plant also includes a post converter downstream the electrically heated reforming reactor system, said post converter housing a second catalyst active for catalyzing steam methane reforming/methanation reactions and reverse water gas shift reaction, said post converter being arranged to receive at least part of said first synthesis gas stream and outletting a second synthesis gas stream. Furthermore, the synthesis gas plant includes means for adding a heated CO.sub.2 rich gas stream to the at least part of the first synthesis gas stream upstream the post converter and/or into the post converter.

A hydrogen reforming system is provided and includes a steam reforming system, a dry reforming system, and a water supply device. The steam reforming system is configured to (i) receive a raw material gas and react the raw material gas with water to generate a first mixed gas containing hydrogen and carbon monoxide, (ii) react the first mixed gas with the water to generate hydrogen and carbon dioxide, and (iii) discharge hydrogen and carbon dioxide. The dry reforming system is configured to (i) receive and react the raw material gas and the carbon dioxide discharged from the steam reforming system to generate a second mixed gas containing hydrogen, (ii) react the second mixed gas with the water to generate hydrogen and carbon dioxide, and (iii) discharge hydrogen and carbon dioxide. The water supply device is configured to supply the water to the steam reforming system and the dry reforming system.

The present disclosure relates to a hydrogen reforming system including a reforming part configured to extract hydrogen from a source gas, and a metal hydride compressor configured to be operated by waste heat discharged from the reforming part and to compress the hydrogen discharged from the reforming part, thereby obtaining an advantageous effect of combining the function of two machines and improving energy efficiency.

Process for manufacturing a hydrogen-containing synthesis gas from a natural gas feedstock, comprising the conversion of said natural gas into a raw product gas and purification of said product gas, the process having a heat input provided by combustion of a fuel; said process comprises a step of conversion of a carbonaceous feedstock, and at least a portion of said fuel is a gaseous fuel obtained by said step of conversion of said carbonaceous feedstock.

A process and/or system for producing fuel that includes providing biogas, removing carbon dioxide from the biogas, transporting the upgraded biogas to a hydrogen plant; providing the transported upgraded biogas and fossil-based natural gas as feedstock for hydrogen production. The carbon intensity of the fuel is less than 11 gCO.sub.2-eq/MJ, at least in part because carbon dioxide removed from the biogas and carbon dioxide from hydrogen production is captured and stored.

A process for producing and storing hydrogen includes providing an intermediate gas mixture having an increased proportion of hydrogen and contacting of the intermediate gas mixture with a hydrogen carrier medium in order to hydrogenate the hydrogen carrier medium.

A process of hydrogen production comprising the steps of: subjecting a gaseous mixture comprising a hydrocarbon 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 an oxygen-rich gas in an autothermal reformer to generate a reformed gas mixture, optionally adding steam to the reformed gas mixture, increasing the hydrogen content of the reformed gas mixture by subjecting it to one or more water-gas shift stages in a water-gas shift unit to provide a hydrogen-enriched reformed gas, cooling the hydrogen-enriched reformed gas and separating condensed water therefrom, passing the resulting de-watered hydrogen-enriched 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 a purified hydrogen gas and a fuel gas.

The invention is directed to a process for the preparation of a syngas comprising hydrogen and carbon monoxide from a methane comprising gas, which process comprises the steps of: (a) reacting the methane comprising gas with an oxidising gas in an autothermal reformer to obtain a hot raw syngas comprising carbon monoxide and hydrogen; (b) cooling the hot raw syngas resulting from step (a) to obtain the syngas, wherein step (b) comprises cooling the hot raw syngas by indirect heat exchange against the methane comprising gas used in step (a) and wherein sulphur is added upstream of cooling step (b). The invention also relates to a process for the preparation of hydrocarbon products in which a feed syngas is prepared in the process as described above followed by a desulphurisation treatment and the desulphurised syngas is subsequently converted into hydrocarbon products in a Fischer-Tropsch process.

A process for the co-production of methanol and ammonia is described comprising the steps of: (a) forming a first synthesis gas stream by reacting a first portion of a hydrocarbon feedstock and steam in a steam reformer, (b) forming a second synthesis gas stream in parallel to the first synthesis gas stream by reacting a second portion of the hydrocarbon feedstock with an oxygen-containing gas and steam in an autothermal reformer, (c) synthesising methanol from a first process gas comprising the first synthesis gas stream, and (d) synthesising ammonia from a second process gas prepared from the second synthesis gas stream, wherein a purge stream containing hydrogen is recovered from the methanol synthesis step (c) and a portion of the purge gas stream is fed to the autothermal reformer and/or the second synthesis gas in step (b).