System for determining SO3 in flue gas

Abstract

The invention discloses a system for determining SO3 in flue gas, comprises the following parts: a sampler which has the function of heating the flue gas that passes through the sampler; an absorber with an aqueous solution of isopropanol, wherein, the inlet of the absorber is connected with the outlet of the sampler to let the flue gas pass through the aqueous solution of isopropanol; a gas flowmeter, wherein, the inlet of the gas flowmeter is connected with the outlet of the absorber; and a vavuum pump which is connected with the outlet of the gas flowmeter.

Description

technical field [0001] The present invention relates to a kind of measuring system of gas, specifically, the present invention relates to a kind of SO in flue gas 3 Determination system. Background technique [0002] The iron and steel industry is one of the industries that cause serious air pollution, and the sintering process is the main source of pollution in the iron and steel industry. In recent years, more and more sinter plants have installed flue gas desulfurization systems to reduce SO emissions 2 , part of the flue gas desulfurization system adopts wet desulfurization process. [0003] Although SO in the sintering flue gas 3 The emissions are relatively small, generally only accounting for 1% to 2% of the total sulfur oxide emissions in the flue gas, but the SO in the sintering flue gas 3 The existence of the presence of the wet flue gas desulfurization will have a greater impact on the operating parameters and operating conditions, especially on the desulfuriz...

AI Technical Summary

Problems solved by technology

So far, due to the large excess SO 2 Easily oxidized to high concentration of SO 3 However, the accuracy and precision of the measurement are reduced, so for the SO in complex flue gas 3 The measurement of

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