Abstract:
A method for the purification of a raw gas comprising hydrogen, carbon oxides and nitrogen, which method comprises the steps of a) subjecting the raw gas to a methanation reaction and converting carbon monoxide and carbon dioxide contained in the raw gas to methane; b) drying the methanated raw gas; d) subjecting the dried methanated raw gas to an ammonia reaction and converting nitrogen in the gas to ammonia; e) removing ammonia from the raw gas from step d); and f) withdrawing a purified gas with a reduced content of carbon oxides and nitrogen.
Abstract:
A process is disclosed for converting a carbonaceous raw material to a liquid or gaseous carbon based fuel, comprising the steps of a) converting said carbonaceous raw material to a carbon based fuel, b) withdrawing a process gas to be purified comprising hydrogen, a carbon oxide, such as carbon monoxide or carbon dioxide and nitrogen, from a position of the process of step a, c) subjecting the process gas to be purified to a methanation reaction in which the carbon oxide contained in the process gas to be purified are converted to methane; providing a methanated process gas; d) directing the methanated process gas to either a once through ammonia synthesis or an ammonia synthesis loop for converting nitrogen in the gas to ammonia, providing an ammonia containing process gas; e) withdrawing liquid phase ammonia from the ammonia containing process gas to be purified of step d) producing a purified gas with a reduced content of nitrogen and f) directing an amount of the purified gas to a position of the process of step a, wherein the molar flow of carbon in the carbon based fuel is greater than the molar flow of the ammonia withdrawn.
Abstract:
The present disclosure relates to a reactor containing of catalyst particles, a layer of fibrous catalyst particles support below said catalyst particles and a lower means of structural support below said catalyst particles with the associated benefit of such a reactor having increased space for catalyst particles, compared to a reactor with inert particles supporting the catalyst particles.