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Continuous operation production process for synthesizing hydrogen chloride to prepare hydrochloric acid

A technology of hydrogen chloride and hydrogen chloride gas, applied in the direction of chlorine/hydrogen chloride, etc., can solve the problems of demanding circulating water production process, failure, equipment blockage, etc.

Inactive Publication Date: 2014-08-27
SHANDONG DONGYUE FLUO SILICON MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is likely to cause risks such as equipment blockage, failure or even explosion. At the same time, the production process requirements for circulating water are very strict, which seriously affects the production and operation costs.

Method used

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  • Continuous operation production process for synthesizing hydrogen chloride to prepare hydrochloric acid
  • Continuous operation production process for synthesizing hydrogen chloride to prepare hydrochloric acid

Examples

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Embodiment 1

[0019] Embodiment 1: the schematic flow chart is as figure 1 shown.

[0020] A continuous operation production process for synthesizing hydrogen chloride and producing hydrochloric acid. Hydrogen and chlorine are respectively adjusted in the hydrogen buffer tank 1 and chlorine buffer tank 2 to adjust the pressure to 0.1 MPa, adjust the flow rate, and pass into the synthesis furnace 3 according to the molar ratio of hydrogen and chlorine at 1:1.05. , the combustion reaction in the synthesis furnace 3 produces hydrogen chloride gas at about 1800 ° C; the hydrogen chloride gas is cooled to about 40 ° C in the furnace body, enters the absorber 4 and is absorbed by pure water to become hydrochloric acid, and the excess gas enters the tail gas device for absorption. Among them, the heat generated during the synthesis and absorption of hydrogen chloride is removed in the following ways:

[0021] First use circulating cooling water to cool the desalted water in the heat exchanger 5, ...

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Abstract

The invention relates to a continuous operation production process for synthesizing hydrogen chloride to prepare hydrochloric acid. The process mainly comprises the steps: burning hydrogen and chlorine in a synthesis furnace after carrying out pressure and flow regulation and proportioning on the hydrogen and chlorine, wherein the obtained hydrogen chloride gas is absorbed into hydrochloric acid; removing the heat generated in the synthesis or absorption process by using a special process, namely, cooling the desalted water in a heat exchanger by using circulating cooling water and then importing the cooled desalted water into the synthesis furnace and / or an absorber for heat exchange; and conveying the desalted water after the heat exchange to a desalted water tank and then pumping the desalted water back to the heat exchanger via a desalted water pump for cooling. According to the continuous operation production process for synthesizing hydrogen chloride to prepare hydrochloric acid, the synthesis effect is ensured, the fault or damage risk of the equipment is effectively reduced and benefit is brought to the safety production and continuous operation.

Description

technical field [0001] The invention relates to a method for synthesizing hydrogen chloride or hydrochloric acid, in particular to a continuous production process for synthesizing hydrogen chloride and producing hydrochloric acid. Background technique [0002] Hydrogen chloride or hydrochloric acid is usually synthesized from chlorine and hydrogen. Because a large amount of heat will be generated in this process and needs to be removed, it is usually directly passed into the circulating cooling water for heat exchange. This method is likely to cause risks such as equipment blockage, failure or even explosion. At the same time, the production process requirements for circulating water are very strict, which seriously affects the production and operation costs. CN202007129U provides a graphite chassis for a hydrogen chloride synthesis furnace, which includes an annular chassis, and the inner circular hole of the chassis is a lamp base mounting hole. The water inlet flow chan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B7/01
Inventor 张秀伸朱永田王国伟
Owner SHANDONG DONGYUE FLUO SILICON MATERIALS CO LTD
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