Kabushiki Kaisha Kobe Seiko Sho

Mitsubishi Kasei Corporation

Hitoshi Matsuo

Morimasa Ogawa

Genichi Emoto

Shunichi Kawasaki

Masaaki Akamatsu

Yoichi Tozawa

Masao Onaka

Zbigniew Urban

A dephlegmator includes a feed gas passage and a refrigerant passage. A feed gas introduced into the feed gas passage from the bottom is heat-exchanged with a refrigerant passing through the refrigerant passage. Components having low boiling points are withdrawn as rectified gases from the top, and components having high boiling points are discharged as condensates from the bottom. The refrigerant passage is divided into a first section on the top side and a second section on the bottom side by a bridgewall. In the first section, a liquid or gas-liquid two-phase refrigerant is introduced from the bottom of the refrigerant passage so as to flow parallel to the feed gas. In the second section, a gas fraction of the refrigerant discharged from the first section flows.

Dephlegmator

The present invention relates to a method for controlling a reactor system comprising a plurality of reactors for a thermal decomposition reaction. Based on the operational control limits of each reactor in the system, a preliminary load allowance function is obtained, and during operation of the system, control factor data for each reactor is fed into a computer to calculate a load allowance for each reactor. Based on the total amount of conversion reactor product and the respective load allowances of each reactor, a system load change is distributed to each reactor, resulting in respective reactor load changes. This data is fed back into the operational control factors for each reactor, resulting in adjustment of the output of each reactor. Operational control factors for each reactor include product output, product composition, reactor temperature, reactor efficiency, and physical properties of the starting material. The present method provides a means for controlling the output of a series of parallel thermal decomposition reactors, such that a desired rate and composition of thermal decomposition product is obtained from any of a number of starting materials supplied to the reactor system.

Method for controlling reactor system

Growing community of inventors

Kurashiki, Japan

Hitoshi Matsuo