The invention relates to a regenerative reactor system which includes a reverse flow regenerative reactor. The reverse flow regenerative reactor includes a housing enclosing an interior region, and process flow components configured to manage the flow of a pyrolysis stream through the interior region. The process flow components include reactor beds. The reverse flow regenerative reactor also includes a pyrolysis inlet conduit for managing flow of the pyrolysis stream to the reverse flow regenerative reactor, and further includes a liquid distribution device that is configured to disperse a liquid portion of the pyrolysis stream along an internal surface of the pyrolysis inlet conduit.

A reactor as a heat treatment device includes heat transfer structures removably placed in first flow channels, a first information acquisition unit connected to the inlet side of the first flow channels to acquire information for specifying a temperature and a flow rate of the first fluid which are reference conditions after lapses of time, a second information acquisition unit connected to the outlet side of the first flow channels to acquire the information for specifying the temperature of the first fluid after each lapse of time, and a control unit that calculates a heat exchange amount after each lapse of time in accordance with the temperature and the flow rate specified according to the information acquired by the first information acquisition unit and the second information acquisition unit, so as to estimate a service life of the heat transfer structures in accordance with the heat exchange amount.

A reactor as a heat treatment device includes heat transfer structures removably placed in first flow channels, a first information acquisition unit connected to the inlet side of the first flow channels to acquire information for specifying a temperature and a flow rate of the first fluid which are reference conditions after lapses of time, a second information acquisition unit connected to the outlet side of the first flow channels to acquire the information for specifying the temperature of the first fluid after each lapse of time, and a control unit that calculates a heat exchange amount after each lapse of time in accordance with the temperature and the flow rate specified according to the information acquired by the first information acquisition unit and the second information acquisition unit, so as to estimate a service life of the heat transfer structures in accordance with the heat exchange amount.

A heat conducting insert for a reactor includes an elongated center portion, a cross member extending outwardly from the center portion and an outer portion extending laterally from a distal end of the cross member. A reactor includes a shell and an insert in the shell. The insert includes an elongated center portion, a cross member extending outwardly from the center portion, and an outer portion extending laterally from a distal end of the cross member.

An offshore installation or offshore vessel is provided which comprises a reactor system for carrying out steam reforming of a feed gas comprising hydrocarbons.