The invention provides an absolute ethyl
alcohol optimized
production control method and
system, and relates to the technical field of absolute ethyl
alcohol production. The method comprises the following steps: determining first
moisture content data,
inlet pressure intensity and outlet pressure intensity through a first
moisture analyzer and a pressure intensity meter which are arranged on a
molecular sieve; determining whether to close a
molecular sieve channel; closing a
molecular sieve channel to obtain regenerated
tail gas;
ethanol saturated steam is obtained; opening a channel of the
membrane filter to obtain first absolute ethyl
alcohol steam; after purging, opening a molecular
sieve channel; determining whether the
membrane filter is cleaned; carrying out
chemical cleaning; and opening a molecular
sieve channel to obtain second absolute ethyl alcohol steam. According to the invention, when absolute ethyl alcohol is produced, the
moisture content, the
inlet pressure and the outlet pressure of the molecular
sieve can be analyzed to determine whether to close the molecular sieve channel, so that regenerated
tail gas is recycled, and absolute ethyl alcohol is alternately produced through the molecular sieve and the
membrane filter. The
gas consumption can be reduced, the equipment
utilization rate and the product yield are improved, and the operation stability is improved.