Production device for preparing benzene through cyclohexane dehydrogenation

The utility model provides a production device for preparing benzene by cyclohexane dehydrogenation, which comprises a cyclohexane feed buffer tank, the cyclohexane feed buffer tank is connected with a product heat exchanger through a pipeline, the product heat exchanger is connected with a precooler through a pipeline, the precooler is connected with a first gas-liquid separation tank through a pipeline, and the first gas-liquid separation tank is connected with a second gas-liquid separation tank through a pipeline. The first gas-liquid separation tank is respectively connected with a benzene-biphenyl separation tower and an air cooler through pipelines, the air cooler is connected with an after-cooler through a pipeline, the after-cooler is connected with a second gas-liquid separation tank through a pipeline, and the second gas-liquid separation tank is connected with a circulating hydrogen compressor through a pipeline. According to the production device for preparing benzene by cyclohexane dehydrogenati