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Manufacture Of Gaseous Mixture Or Synthesis
Patent Number: JP3193112
Publication date: 1991-08-22
Inventor(s): Kawano Masahiro, Toida Tsutomu
Applicant(s): JGC Corp
Requested Patent: JP3193112
Application Number: JP19890329469 19891221
Priority Number(s):
IPC Classification: B01D53/04; B01J20/34; C01B3/34
EC Classification:
Equivalents: JP2007640C, JP7032859B

Abstract

PURPOSE: To efficiently manufacture a gaseous mixture for synthesis by regenerating an adsorbent by reducing the pressure of a used adsorbing tower to introduce H₂-gas into the tower and recycling the gas flowing out at the time of regeneration to a steam reforming reactor.

CONSTITUTION: After hydrocarbon is subjected to steam reforming by a steam reforming reactor 5, CO₂ is removed from the reformed gas to obtain a gaseous mixture 10 for synthesis consisting of H₂ and CO. At this time, the gas subjected to steam reforming by the reactor 5 is passed through adsorbing towers 8A-8C filled with an adsorbent adsorhing CO₂ in a pressurized state and CO₂ is adsorbed on the adsorbent while H2 and CO are allowed to leak to obtain the gaseous mixture 10 for synthesis. Before CO₂ leaks from the adsorbing towers or at the point of time when a small amount of CO₂ leaks, the adsorbing towers are changed over and the adsorption of CO₂ is continued in the other adsorbing towers and the used adsorbing tower is reduced in pressure to introduced H₂-gas or a H₂-CO gaseous mixture into said adsorbing tower to regenerate the adsorbent and the gas flowing out at the time of pressure reduction and regeneration is recycled to the reactor 5.