INTEGRATED SYSTEM FOR WET DESULFURIZATION USING A SUSPENSION BED AND REGENERATION
First Claim
1. An integrated system for wet desulfurization using a suspension bed and regeneration, comprising:
- a suspension bed reactor, provided with a feed inlet at bottom thereof and a discharge outlet at top thereof, the suspension bed reactor being filled with a mixture of a desulfurization slurry and a hydrogen sulfide containing gas, wherein the mixture has a dwell time of 5-60 mins in the suspension bed reactor;
a gas liquid separation tank, in connection with the discharge outlet of the suspension bed reactor, and provided with a rich solution outlet at bottom thereof and an exhaust port at top thereof;
a flash evaporation tank, in connection with the rich solution outlet of the gas liquid separation tank, and provided with a saturated liquid outlet at bottom thereof; and
an oxidation regeneration tank, in connection with the saturated liquid outlet of the flash evaporation tank, and provided with a barren solution outlet arranged at bottom thereof and in connection with the feed inlet of the suspension bed reactor.
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Accused Products
Abstract
Provided is an integrated system for wet desulfurization using a suspension bed and regeneration, comprising a suspension bed reactor, a gas liquid separation tank, a flash evaporation tank and an oxidation regeneration tank that are connected in sequence. The integrated system is adapted to reduce the sulfur content in the hydrogen sulfide containing gas from 2.4-140 g/Nm3 to 50 ppm or less by using a suspension bed, so that the desulfurization efficiency is 98% or more. The present invention is adapted to realize regeneration of a spent desulfurizer by reacting an oxygen-containing gas with the rich solution, and the barren solution may be recycled for being used as the desulfurization slurry, without generating secondary pollution. Therefore, a process using the integrated system is simple and reasonable, with high desulfurization and regeneration efficiency, simple equipment, little occupation of land and low investment, which is very suitable for industrial promotion.
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Citations
19 Claims
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1. An integrated system for wet desulfurization using a suspension bed and regeneration, comprising:
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a suspension bed reactor, provided with a feed inlet at bottom thereof and a discharge outlet at top thereof, the suspension bed reactor being filled with a mixture of a desulfurization slurry and a hydrogen sulfide containing gas, wherein the mixture has a dwell time of 5-60 mins in the suspension bed reactor; a gas liquid separation tank, in connection with the discharge outlet of the suspension bed reactor, and provided with a rich solution outlet at bottom thereof and an exhaust port at top thereof; a flash evaporation tank, in connection with the rich solution outlet of the gas liquid separation tank, and provided with a saturated liquid outlet at bottom thereof; and an oxidation regeneration tank, in connection with the saturated liquid outlet of the flash evaporation tank, and provided with a barren solution outlet arranged at bottom thereof and in connection with the feed inlet of the suspension bed reactor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19)
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11. An integrated system for wet desulfurization using a suspension bed and regeneration, comprising:
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a suspension bed reactor, provided with a feed inlet at bottom thereof and a discharge outlet at top thereof; a gas liquid separation tank, in connection with the discharge outlet of the suspension bed reactor, and provided with a rich solution outlet at bottom thereof and an exhaust port at top thereof; a flash evaporation tank, in connection with the rich solution outlet of the gas liquid separation tank, and provided with a saturated liquid outlet at bottom thereof; and an oxidation regeneration tank, in connection with the saturated liquid outlet of the flash evaporation tank, and provided with a barren solution outlet arranged at bottom thereof and in connection with the feed inlet of the suspension bed reactor.
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Specification