HYDROGEN PRODUCTION APPARATUS AND HYDROGEN PRODUCTION METHOD

摘要

Provided is a hydrogen production apparatus enabling reduction of energy needed for separation and collection of CO2 in the hydrogen production. The hydrogen production apparatus includes a reformer, a heating device heating the reformer, a transformer, a hydrogen separation device separating and taking out hydrogen from transformed gas, a CO2 separation device separating and taking out CO2 from off-gas from which hydrogen was separated by the hydrogen separation device, a heat collecting device collecting heat of the reformed gas, heat of the transformed gas, and waste heat from the heating device, and a heat medium supply device supplying the heat medium having absorbed heat collected by the heat collecting device to the CO2 separation device. The absorption liquid having absorbed CO2 in off-gas is heated by the heat medium heated with collected heat, thereby releasing CO2.

主权项

1. A hydrogen production apparatus comprising:
a reformer that causes a reforming reaction to occur between hydrocarbon and water vapor so as to generate CO and hydrogen; a heating device that heats the reformer so as to cause the reforming reaction to proceed; a transformer that causes a transformation reaction of CO in reformed gas generated by the reformer that contains CO and hydrogen, with water vapor, so as to generate hydrogen and CO2; a hydrogen separation device that separates and takes out hydrogen from transformed gas generated by the transformation reaction that contains hydrogen and CO2; a CO2 separation device that separates and takes out CO2 from off-gas that is gas remaining after hydrogen is separated from the transformed gas by the hydrogen separation device; a heat collecting device that collects at least one among heat of the reformed gas, heat of the transformed gas, and waste heat from the heating device; and a heat supply device that supplies heat collected by the heat collecting device to the CO2 separation device, wherein the CO2 separation device includes: a capturing unit that captures CO2 in the off-gas with use of a capturing agent that absorbs or adsorbs CO2; and a heating unit that heats a capturing agent after capture that is the capturing agent after capturing CO2, by utilizing heat supplied from the heat supply device, in order to cause the capturing agent after capture to release CO2, thereby taking out CO2 therefrom.