Process for producing ammonia synthesis gas

Process for producing ammonia synthesis gas

  • CN 101,878,181 A
  • Filed: 11/06/2008
  • Published: 11/03/2010
  • Est. Priority Date: 11/27/2007
  • Status: Active Application
First Claim
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1. produce the method for ammonia synthesis gas, this method may further comprise the steps:

  • -the air-flow that will comprise the air-flow of hydrocarbon and comprise water vapour is sent in the primary reformer of the catalyst tube that is equipped with a plurality of indirect heating,-described hydrocarbon and described water vapour are reacted in the catalyst tube of described primary reformer to obtain product gas, the working pressure in this catalyst tube is at least 45 crust,-described product gas and oxidizer flow are sent into the secondary converter,-make described product gas and described oxidant reactant gas, reform through secondary then, so that the contained whole hydrocarbon of described product gas of discharging from primary reformer are fully reformed and are obtained reformed gas, this reformed gas comprises hydrogen, oxycarbide and unreacted water vapour, and a nitrogen content that has be 0 in the described reformed gas H 2/ N 2The approaching required content of stoichiometric ratio that is used for ammonia synthesis of mol ratio, -from described reformed gas, remove oxycarbide, and randomly send into a certain amount of nitrogen and equal or near being used for the H of the stoichiometric ratio of ammonia synthesis to reach 2/ N 2Mol ratio obtains described synthetic gas.

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