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SWEET CARBON MONOXIDE SHIFT PROCESS

IP.com Disclosure Number: IPCOM000238465D
Publication Date: 2014-Aug-27
Document File: 4 page(s) / 1M

Publishing Venue

The IP.com Prior Art Database

Abstract

A combination of saturator and heat exchangers are used to heat up the incoming cold syngas from the acid gas removal system and saturate the syngas with water. The adiabatic shift reactor heat is used to heat up the syngas and to generate various levels of steam. The water required for saturating the syngas is generated within the system by cooling the syngas thus preventing any makeup water addition to the system.

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SWEET CARBON MONOXIDE SHIFT PROCESS

Sweet carbon monoxide shift typically requires roughly two to three times the stoichiometric requirement of steam to prevent carbon deposition on shift catalysts.  Shift processes are operated in medium to high pressure depending on downstream requirements.  Therefore, high pressure/medium pressure steam is required, which may add more cost to this process.   This instant disclosure discusses a process in which the steam consumption is reduced and can generate additional low pressure steam.

ABSTRACT

A combination of saturator and heat exchangers are used to heat up the incoming cold syngas from the acid gas removal system and saturate the syngas with water.  The adiabatic shift reactor heat is used to heat up the syngas and to generate various levels of steam.  The water required for saturating the syngas is generated within the system by cooling the syngas thus preventing any makeup water addition to the system.

DRAWINGS

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ABSTRACT

This instant disclosure discusses the configurations for sweet shift process involving two shift reactors, one high temperature and one low temperature.  This process reduces the steam consumption for shift reactors and generates low pressure steam, which can be used either in a steam turbine or elsewhere.


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