A fabrication system and method of enriched liquid hydrogen and methane

The present invention relates to a system and method for taking a hydrogen rich gas and liquid methane produced. The system includes a purge gas purification unit and a cryogenic liquefying and separating unit. The present invention is by mixed refrigerant compression refrigeration cycle, refrigerant compressed nitrogen cycles and exhaust gas expansion refrigeration, ammonia or methanol in the purge gas rectification efficiency distillation column separated hydrogen-rich gas and liquid methane, simple process, low energy consumption, the recovery high. The present invention provides good in reliability, low operating costs, high product purity of systems and methods for production of enriched hydrogen gas and liquid methane.