Abstract: A process for the production of hydrogen rich gas from a feedstock containing dimethyl ether and/or methanol by steam reforming dimethyl ether in presence of a reforming catalyst to a product gas being rich in hydrogen, wherein necessary heat for the endothermic steam reforming reactions is supplied through oxidation of part of the hydrogen contained in the steam reformed feedstock process in heat conducting relationship with the steam reforming reactions.

Abstract: A process for the preparation of ammonia synthesis gas includes supplying a feedstock gas, optionally mixed with a flue gas, to at least one pair of reforming reactors. Each reactor has a process and fuel side and a combustion side. Each pair of reactors is arranged in parallel on the process and fuel side, and in series on the combustion side. A flame temperature in each pair of reactors is controlled by supplying an excess of combustion air to a first reactor of the pair, and oxygen-depleted combustion air to a second reactor of the pair.

Abstract: A process for the preparation of acetic acid by catalytic conversion of a synthesis gas being rich in hydrogen and carbon monoxide, comprising steps of:(i) introducing a stream of the synthesis gas into a first reaction step at a predetermined pressure and temperature and reacting the synthesis gas in the presence of a catalyst being active in formation of methanol and dehydration of methanol, so as to obtain a gaseous process phase containing methanol, dimethyl ether, and water;(ii) cooling the gaseous process phase of step (i) and obtaining a liquid phase with the methanol, dimethyl ether and water and a gaseous phase comprising carbon dioxide and residual amounts of dimethyl ether;(iii) introducing the liquid phase formed in step (ii) into a second reaction step at a predetermined pressure and temperature and adding a predetermined amount of carbon monoxide; and(iv) carbonylating methanol and dimethyl ether in the liquid phase with carbon monoxide by contact with a catalyst being active in the carbonylatio