Isothermal shift hydrogen production method matched with coal water slurry gasification device, and isothermal shift converter

• Main Authors: XU JIE, WU YANBO, ZHOU YANG, SUN SHICAI, PANG XINJIAN, ZOU JIE, JIA LONGZHEN, XU RENCHUN, YING ZHAO
• Format: Patent
• Language: Chinese; English
• Published: 14.02.2020
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention relates to an isothermal shift hydrogen production method matched with a coal water slurry gasification device, and an isothermal shift converter. The isothermal transformation hydrogenproduction method comprises the steps: feeding raw coal gas from the coal water slurry gasification device into a low-pressure steam generator, recovering heat, byproducting low-pressure saturated steam, separating out condensate, preheating and detoxifying, and dividing the treated raw coal gas into two streams; allowing the first stream to enter a gas-cooled shift converter, and carrying out a shift reaction; converging the second stream of raw coal gas with primary gas-cooled shift gas subjected to heat recovery to form mixed gas, firstly enabling the mixed gas to enter a first reaction cavity, carrying out medium-temperature shift reaction to generate primary isothermal shift gas and byproduct medium-pressure saturated steam, and then enabling the primary isothermal shift gas to entera second reaction cavity,