A system includes a heat exchange system and a power generation system. The heat exchange system includes first, second, and third heat exchangers each operable as a continuous source of heat from a delayed coking plant. The first and second heat exchangers heat first and second fluid streams to produce heated first and second fluid streams, respectively. The heated second fluid stream has a lower temperature and a greater quantity of heat than the heated first fluid stream. The third heat exchanger heats a third fluid stream to produce a heated third fluid stream that includes the heated first fluid stream and a hot fluid stream. The heated third fluid stream has a lower temperature than the heated first fluid stream. The power generation system generates power using heat from the heated second and third fluid streams.

Disclosed is a hydrogen production system using a biochar oven, the system including: a vertical pyrolysis furnace into which a pyrolysis target including at least one of waste plastic and fossil fuel is supplied in a free fall scheme by its own weight; a plate-shaped flameless heater configured to heat the vertical pyrolysis furnace such that a high-temperature atmosphere of 800 to 1300? C. is generated therein; a solid-gas separator installed under a bottom of the vertical pyrolysis furnace and configured to receive a biochar-gas mixture produced from the vertical pyrolysis furnace and to separate the biochar-gas mixture into the BOG and the biochar and to discharge the BOG and the biochar; and a BOG purification unit configured to receive therein the biochar separated using the solid-gas separator therefrom, and use the received biochar as an adsorbent, wherein the BOG separated using the solid-gas separator passes through the received biochar in the BOG purification unit such that impurities contained in the BOG are removed therefrom.

Disclosed is a hydrogen production system using a biochar oven, the system including: a vertical pyrolysis furnace into which a pyrolysis target including at least one of waste plastic and fossil fuel is supplied in a free fall scheme by its own weight; a plate-shaped flameless heater configured to heat the vertical pyrolysis furnace such that a high-temperature atmosphere of 800 to 1300? C. is generated therein; a solid-gas separator installed under a bottom of the vertical pyrolysis furnace and configured to receive a biochar-gas mixture produced from the vertical pyrolysis furnace and to separate the biochar-gas mixture into the BOG and the biochar and to discharge the BOG and the biochar; and a BOG purification unit configured to receive therein the biochar separated using the solid-gas separator therefrom, and use the received biochar as an adsorbent, wherein the BOG separated using the solid-gas separator passes through the received biochar in the BOG purification unit such that impurities contained in the BOG are removed therefrom.

A system includes a heat exchange system and a power generation system. The heat exchange system includes first, second, and third heat exchangers each operable as a continuous source of heat from a delayed coking plant. The first and second heat exchangers heat first and second fluid streams to produce heated first and second fluid streams, respectively. The heated second fluid stream has a lower temperature and a greater quantity of heat than the heated first fluid stream. The third heat exchanger heats a third fluid stream to produce a heated third fluid stream that includes the heated first fluid stream and a hot fluid stream. The heated third fluid stream has a lower temperature than the heated first fluid stream. The power generation system generates power using heat from the heated second and third fluid streams.

A system includes a heat exchange system and a power generation system. The heat exchange system includes first, second, and third heat exchangers each operable as a continuous source of heat from a delayed coking plant. The first and second heat exchangers heat first and second fluid streams to produce heated first and second fluid streams, respectively. The heated second fluid stream has a lower temperature and a greater quantity of heat than the heated first fluid stream. The third heat exchanger heats a third fluid stream to produce a heated third fluid stream that includes the heated first fluid stream and a hot fluid stream. The heated third fluid stream has a lower temperature than the heated first fluid stream. The power generation system generates power using heat from the heated second and third fluid streams.

A multi-stage product gas generation system converts a carbonaceous material, such as municipal solid waste, into a product gas which may subsequently be converted into a liquid fuel or other material. One or more reactors containing bed material may be used to conduct reactions to effect the conversions. Unreacted inert feedstock contaminants present in the carbonaceous material may be separated from bed material using a portion of the product gas. A heat transfer medium collecting heat from a reaction in one stage may be applied as a reactant input in another, earlier stage.

A feed system for a reactor, a reactor assembly comprising such a feed system, and a method of supplying a feed material to a reactor with a feed system are provided. The reactor may be a pyrolysis reactor, such as a fluidised bed pyrolysis reactor. A method of pyrolysing a feed material is also provided. The feed system may comprise a feed conduit extending from an inlet to an outlet, and may have a first section including the inlet and a second section including the outlet. The first section may accommodate an auger. The second section may comprise at least one plug forming zone in which feed material is compressed into a substantially gas-tight plug during operation. There may be a temperature regulator for controlling the temperature in the second section. The temperature regulator may comprise a cooling jacket.

A feed system for a reactor, a reactor assembly comprising such a feed system, and a method of supplying a feed material to a reactor with a feed system are provided. The reactor may be a pyrolysis reactor, such as a fluidised bed pyrolysis reactor. A method of pyrolysing a feed material is also provided. The feed system may comprise a feed conduit extending from an inlet to an outlet, and may have a first section including the inlet and a second section including the outlet. The first section may accommodate an auger. The second section may comprise at least one plug forming zone in which feed material is compressed into a substantially gas-tight plug during operation. There may be a temperature regulator for controlling the temperature in the second section. The temperature regulator may comprise a cooling jacket.

A multi-stage product gas generation system converts a carbonaceous material, such as municipal solid waste, into a product gas which may subsequently be converted into a liquid fuel or other material. One or more reactors containing bed material may be used to conduct reactions to effect the conversions. Unreacted inert feedstock contaminants present in the carbonaceous material may be separated from bed material using a portion of the product gas. A heat transfer medium collecting heat from a reaction in one stage may be applied as a reactant input in another, earlier stage.

A multi-stage product gas generation system converts a carbonaceous material, such as municipal solid waste, into a product gas which may subsequently be converted into a liquid fuel or other material. One or more reactors containing bed material may be used to conduct reactions to effect the conversions. Unreacted inert feedstock contaminants present in the carbonaceous material may be separated from bed material using a portion of the product gas. A heat transfer medium collecting heat from a reaction in one stage may be applied as a reactant input in another, earlier stage.