Norskhydro Asa

Alstom Technology Limited

Equinor Energy As

Knut Ingvar Åsen

Henrik Solgaard Andersen

Stein Julsrud

Ole-Jacob Siljan

Dag Arne Eimer

Ulf Linder

Erik Hans Eriksen

A process for generating power using a gas turbine, comprising the steps of: (i) vaporising and pre-heating liquid ammonia to produce pre-heated ammonia gas; (ii) introducing the pre-heated ammonia gas into an ammonia-cracking device suitable for converting ammonia gas into a mixture of hydrogen and nitrogen; (iii) converting the pre-heated ammonia gas into a mixture of hydrogen and nitrogen in the device; (iv) cooling the mixture of hydrogen and nitrogen to give a cooled hydrogen and nitrogen mixture; (v) introducing the cooled hydrogen and nitrogen mixture into a gas turbine; and (vi) combusting the cooled hydrogen and nitrogen mixture in the gas turbine to generate power.

Ammonia cracking

A method for operating one or more electrolysis cells () for production of aluminium, the cell comprising inert or substantially inert anodes, where an oxygen containing gas () evolved by the electrolysis process in the cell is gathered and removed therefrom. The oxygen containing gas is introduced into a combustion chamber () where it is reacted with a carbon containing gas () in a combustion process. Emisions of COand NOcan be reduced.

Method for operating one or more electrolysiscells for production of aluminium

The present invention relates to a method for manufacturing a hydrogen- and nitrogen containing gas mixture, where a mixture of steam and a carbon containing gas is fed to the retentate side of at least one hydrogen transport membrane syngas and sweep gas generator where said gas and steam are converted to synthesis gas. A part of the hydrogen in said synthesis gas is transported through the membrane to the permeate side in said generator where it reacts with oxygen in an air stream fed to said permeate side to generate heat and a nitrogen and steam containing gas. The synthesis gas is further fed to the retentate side of a downstream hydrogen transport membrane unit or a hydrogen transport membrane reactor where a major part of the hydrogen in said synthesis gas, and if a reactor is used, a major part of additional hydrogen generated at the retentate side in said reactor is transported through said downstream membrane and picked up by said nitrogen containing gas to form a hydrogen- and nitrogen containing gas mixture. Furthermore, the invention relates to a method for performing a catalytic or non-catalytic process wherein the hydrogen- and nitrogen containing gas mixture manufactured by the method according to claims 1&#x2013;6 is applied as one of the reactants in said process.

Method for manufacturing a hydrogen and nitrogen containing gas mixture

The invention concerns a method of operating a combustion plant comprising at least a first gas turbine (), a second turbine () and a membrane reactor device () which comprises a membrane filter device () for separating oxygen from a gas mixture and a combustion space (). A gas mixture containing oxygen is supplied to the membrane reactor device (). At least some oxygen is separated from the gas mixture with the help of the membrane filter device (). The separated oxygen is used at the combustion in the combustion space (). The oxygen-depleted gas that is obtained after the separation of oxygen and which has not gone through a combustion process is used to run the first gas turbine (). Combustion gases run the second turbine (). The invention also concerns a combustion plant for carrying out the method.

Growing community of inventors

Porsgrunn, Norway

Knut Ingvar Åsen