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Novel semi-dry desulfurization process

A semi-dry desulfurization and process technology, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve problems such as increased costs, increased energy consumption, and unsuitable installation of spray tower systems, and achieves reductions in equipment costs, The effect of reducing operating costs and improving desulfurization efficiency

Active Publication Date: 2019-06-07
江苏优拿大环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the spray method will generate a large amount of waste water, which contains a large amount of soot, oil, heavy metals, etc., which requires the addition of a complex waste water treatment system, increased energy consumption, and increased costs, and the bulky spray tower system should not be installed on ships and Offshore oil production platform

Method used

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  • Novel semi-dry desulfurization process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A new semi-dry desulfurization process: on diesel-powered ships, the engine power is 1000kw, and the fuel sulfur content is 2%, adding bicarbonate storage cabinets, zeolite storage tanks, screw feeders, feed For equipment such as funnels, venturi tubes, blowers, and dust removal devices, the particle size of sodium bicarbonate used is 300 mesh, and the particle size of zeolite is 200 mesh.

[0033] First, mix sodium bicarbonate and zeolite powder according to the mass ratio of 1:2, and add them into the screw feeder; the screw feeder transports the desulfurizer to the feeding funnel, and the feeding speed is 0-14kg / h; the Venturi tube The suction port is connected to the bottom of the feed funnel, the inlet end of the Venturi tube is connected to the blower, and the outlet end of the Venturi tube is directly connected to the middle and lower part of the flue. The desulfurizer in the gas reacts with the sulfur dioxide in the flue gas to generate sodium bisulfite and carb...

Embodiment 2

[0037] A new semi-dry desulfurization process: on ships powered by heavy oil engines, the engine power is 5000kw, and the sulfur content of fuel oil is 3%, adding bicarbonate storage cabinets, zeolite storage tanks, screw feeders, feed For equipment such as funnels, venturi tubes, blowers, and dust removal devices, the particle size of sodium bicarbonate used is 500 mesh, and the particle size of zeolite is 300 mesh.

[0038] First, mix sodium bicarbonate and zeolite powder according to the mass ratio of 1:5, and add them into the screw feeder; the screw feeder transports the desulfurizer to the feeding funnel, and the feeding speed is 0-150kg / h; the Venturi tube The suction port is connected to the bottom of the feed funnel, the inlet end of the Venturi tube is connected to the blower, and the outlet end of the Venturi tube is directly connected to the middle and lower part of the flue. The desulfurizer in the gas reacts with the sulfur dioxide in the flue gas to generate sod...

Embodiment 3

[0042] A new semi-dry desulfurization process: on ships powered by diesel engines, the engine power is 1000kw, and the sulfur content of fuel oil is 2%, adding bicarbonate storage cabinets, zeolite storage tanks, screw feeders, feeders Material hopper, Venturi tube, blower, dust removal device and other equipment, the particle size of sodium bicarbonate used is 500 mesh, and the particle size of zeolite is 500 mesh.

[0043]First, mix sodium bicarbonate and zeolite powder according to the mass ratio of 1:10, and add them into the screw feeder; the screw feeder transports the desulfurizer to the feeding funnel, and the feeding speed is 0-55kg / h; the Venturi tube The suction port is connected to the bottom of the feed funnel, the inlet end of the Venturi tube is connected to the blower, and the outlet end of the Venturi tube is directly connected to the middle and lower part of the flue. The desulfurizer in the gas reacts with the sulfur dioxide in the flue gas to generate sodiu...

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Abstract

The invention discloses a novel semi-dry desulfurization process. According to the process, a bicarbonate and a microporous substance are uniformly mixed to prepare a desulfurizing agent, the bicarbonate and the microporous substance are directly fed into a flue under the action of gas power, and tail gas desulfurization is carried out by using a chemical reaction between the bicarbonate and sulfur dioxide, wherein the microporous substance is added as a catalyst, and desulfurization efficiency is greatly improved. The method is economical and environmentally friendly, desulfurization efficiency is high, the device size is small, the using space is saved, and the process is especially suitable for the field of tail gas treatment of ship plants, power plants and the like.

Description

technical field [0001] The invention belongs to the field of environmental protection waste gas treatment, and in particular relates to the purification treatment of sulfur dioxide waste gas produced by operating carriers such as ships and power plants. Background technique [0002] After the combustion of marine fuel and coal, etc., it will produce sulfur oxides (hereinafter referred to as SO X ), nitrogen oxides (hereinafter referred to as NO X ), these substances will be emitted into the atmosphere in the form of waste gas. while SO X SO in 2 , will form acid rain in the atmosphere, causing harm to the environment and human beings. The control of sulfur dioxide has become a global consensus. The International Maritime Organization (IMO)'s "73 / 78 Anti-Pollution Convention" (MARPOL Convention) Annex VI requires that since 2012, the sulfur content of fuel oil used by ocean-going ships operating on the high seas must be lower than 3.5% (m / m), and will drop to 0.5% (m / m) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/82B01D53/50B01D53/86
Inventor 杨生哲田慎重
Owner 江苏优拿大环保科技有限公司