Methanol synthesis process layout for large production capacity

Abstract

A process layout for large scale methanol synthesis comprises one or more boiling water reactors and one or more radial flow reactors in series, the boiling water reactor(s) being fed with approximately fresh make-up syngas. The methanol synthesis loop comprises a make-up gas compressor K, a recycle gas compressor K, two or more boiling water converters for methanol synthesis (A, A, . . . ), a radial flow converter (B) for methanol synthesis, a steam drum (V), a high pressure separator (V), a low pressure separator (V), feed effluent heat exchangers (Eand E), a wash column (C), an air cooler (E) and a water cooler (E).