EVALUATION OF THE PROCESS OF OXIDATIVE COUPLING OF METHANE USING LIQUEFIED NATURAL-GAS FROM DEPOSITS OF KRASNOYARSK REGION

A flow sheet diagram for the process of converting of LNG of Krasnoyar sk region is considered. Process comprises reactors for oxidative meth ane coupling (OCM) and ethane dehydrogenation utilising heat of OCM re action, products and reagent recycling and block of product separation , which operates at cryogenic temperature and atmospheric pressure. Ma ss and heat balances for different cases were calculated. It is shown that utilisation of LNG as a cooling agent has a beneficial effect on power consumption. Simulation shows that substantial increase of yield of ethylene (up to 50%) can be achieved even with a moderate performa nce catalyst of OCM. (C) 1998 Elsevier Science B.V. All rights reserve d.