TH1602A - Ammonia synthesis gas preparation - Google Patents

Abstract

An anonia synthesis gas with an excess of nitrogen is formed in the reactor-exchanger primary reformers. Switched with a secondary reformer in which the process There will be air for the secondary reformers to be heated up. First, with heat exchange with the gas discharged from the gas turbine and the primary regenerator is heated by gas. Synthesized from secondary reformers

Claims (8)

1. The process for the production of synthetic ammonia gas includes: a) the removal of a new feedstock which is a hydrocarbon that is Usually gas and steam go to the transformation zone at the catalyst. List and heat operated under vapor reform condition. Water to produce is a primary reforming gas with Hydrogen, carbon dioxide, methane and water vapor; b) centrifugal air arrangement driven by Gas turbines and making The compressed air is heated to a temperature range from 700 C to 900 C by indirect heat exchange with the gas discharged from the gas turbine. The compressed air that has been heated up from step b) goes to the conversion zone. Change the one that uses the catalyst and is the operating adaptive. Under regenerative conditions that use their own heat to produce It is a raw and hot ammonia synthesis gas. D) Through synthesis ammonia gas Raw and sultry nia to a transformation zone that uses a catlist and Heat in indirect heat exchanger with carbon idro at Usually gas and steam there. To make heat All for the transformation in a meta-based transformation region. List and Heat and Ammonia Synthetic Recovery Gas Recovery Returned from a transforming zone that uses catalysts and heat 2. Process of claim No. 1, where the ratio of water vapor to Cl relative to the new imported feedstock. Into the conversion zone where catalysts and heating are used from 2.5 to 4.5, and the new Hydrocarbons, usually gases, are introduced into the conversion zone. Change that uses a catalyst and is an adiabatic mixed with Primary reforming gases and additional steam in Characteristics that the ratio of Total steam per Cl in the transformation zone using catalyst and Is an adiabatic type, will be from 2 to 3 as compared to Available hydrocarbons 3. Process of claim No. 1 where the substance is fed New parts imported to the conversion area using catalyst. And a new portion of heat and input that is brought into the conversion zone. Changes that use catalysts and adiabatic types will have a ratio of 1: 1 to 3: 1. 4. Process of Proposition No. 1 or No. 2, where the gas discharged from the gas turbine is further heated by combustion. Of the additional fuel that is added to it at the part Early indirect heat exchange with compressed air 5. Process of claim No. 1 or No. 2 where the raw ammonia synthesis gas recovered from the conversion zone. Change where the catalist is used and the heat will be exchanged. Indirect heating with at least part of the input part Newly introduced into the transforming field that uses catalysts and heating 6. Process of claim No. 2, which is supplemented by: Methane recovery and carbon dioxide removal process to produce ammonia synthesis gas Ammonia using catalyst solutions for product recovery Ammonia returned And method of recirculating gas recirculation; and c) product recovery Ammonia returned 7. Process of claim # 6, where nitrogen is Removed from synthetic ammonia gas prior to gas compression. Synthetic ammonia 8. Process of claim No. 6, where the leaching gas Contains hydrogen nitrogen And the methane is removed from the cycle The ammonia is synthesized and the hydrogen-rich currents are recovered. Is returned from the wash current and is brought back into the Synthetic ammonia (8 claims, 3 pages, 1 picture).