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Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
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机译:加压臭氧纸浆脱木质反应器和用于向反应器供应臭氧的压缩机
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摘要
A method and apparatus supply ozone containing gas under superatmospheric pressure to an ozone delignification device. The speed of a water ring compressor is controlled so that it compresses as much ozone gas per unit time at desired superatmospheric pressure as the ozone delignification unit utilizes, with essentially no excess. The ozone containing gas is fed from the water ring compressor through a separator buffer tank which levels out pressure pulses and separates cooling water from compressed ozone gas prior to the gas entering the ozone delignification unit. The gas passes through a control valve controlled by a mass flowmeter which senses the amount of cellulose pulp fed to the ozone delignification unit. The speed control of the compressor may be provided by a differential pressure controller connected across the control valve.
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