Technical Advantages
1. Skid-mounted modular design, plug-and-play
2. Low power consumption, high cost-effectiveness
3. Fully automatic PLC control
4. Customized design available according to customer requirements
Product Overview
The hydrochloric acid graphite synthesis furnace uses chlorine and hydrogen as raw materials and resin-impregnated chemical-grade special graphite as the base material, and is used for hydrogen chloride synthesis and hydrochloric acid production. According to the degree of integration, it is divided into two basic furnace types: the two-in-one type completes the synthesis and cooling of hydrogen chloride and outputs hydrogen chloride gas, with a supporting absorption system for acid production; the three-in-one type further integrates synthesis, cooling and absorption into one unit, producing acid in a single pass. The chlorine raw material has wide adaptability, as either virgin chlorine or tail chlorine can be used, and the product acid concentration can reach 31%~33%.
Technical Principle
Hydrogen and chlorine enter the graphite furnace head and burn, undergoing the following chemical reaction:
H₂+ Cl₂→2HCl
The generated high-temperature hydrogen chloride gas flows upward inside the graphite furnace body. The resin-impregnated graphite matrix is resistant to hydrochloric acid and hydrogen chloride corrosion and has good thermal conductivity; it serves both as the reaction and heat exchange component and as the corrosion-resistant furnace body.
Two-in-one furnace: the high-temperature hydrogen chloride exchanges heat with the cooling medium in the cooling section of the furnace and is cooled down; the cooled hydrogen chloride gas is delivered out and enters the subsequent falling-film absorber and tail gas tower system, where it is absorbed by water or dilute hydrochloric acid to produce hydrochloric acid. Its technical core is synthesis + cooling, with the absorption unit arranged independently.
Three-in-one furnace: the high-temperature hydrogen chloride is first cooled in the cooling section inside the furnace and then enters the absorption section, where it is absorbed by water or dilute hydrochloric acid to form hydrochloric acid; the heat of absorption is removed through the cooling section and the jacket, so that synthesis, cooling and absorption are completed directly inside the furnace, producing finished hydrochloric acid in a single pass. The trace amount of unabsorbed hydrogen chloride is treated by the supporting tail gas tower and discharged up to standard.
Both furnace types can be equipped with control measures such as automatic chlorine-hydrogen ratio adjustment, automatic ignition, flame monitoring, flameout interlock and safe shutdown, ensuring stable and safe combustion and absorption.
Main Features
- High gas purity and complete combustion: the graphite burner head design ensures uniform chlorine-hydrogen mixing and complete combustion, and the free chlorine content in the product is zero (measured by the oxygen method), effectively guaranteeing the quality of HCl and the finished acid.
- High safety: a carbon steel cooling water jacket is used on the outside, providing an excellent safety barrier; when the cooling water is suddenly interrupted, the water in the jacket can still ensure and maintain the temperature inside the furnace body for a relatively long time, preventing damage to the equipment from high temperature.
- Large production capacity and flexibility: it has a relatively large production capacity and operating flexibility, and can flexibly adapt to load fluctuations under different operating conditions.
- Superior overall benefits: compared with conventional furnace types, it has unique advantages such as direct supply of high-quality hydrogen chloride, low investment, long service life and good acid quality.
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Application Fields
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Chlor-alkali, chemical and other industries. It is mainly used to directly supply high-quality hydrogen chloride gas to downstream processes (such as PVC, polysilicon, etc.), or to produce high-quality hydrochloric acid.
Technical Parameters
Parameter Category
Parameter Item
Typical Value
Material system
Operating pressure
60 ~ 80 kPa
Design pressure
0.1 MPa
Gas outlet temperature
< 160 °C
Cooling system
Operating pressure
Atmospheric pressure
Design pressure
0.4 MPa
Cooling water outlet temperature
< 40 °C
Capacity
HCl (100% basis) output
10,000 ~ 30,000 t/a
Note: The above parameters are based on standard design; specific specifications and dimensions can be customized according to the customer's actual operating conditions.
Company Advantages
Boasting 25 years of professional industry experience in production and supply, CHLORY factory delivers premium,cost-effective chemical products with reliable quality. Worldwide exported to more than 50 countries, including Italy, USA, Saudi, Africa and other countries and some foreign companies are our agents locally. Equipped with fully automatic production systems and scientific modular production line design, we achieve stable output, high efficiency and low energy consumption while strictly complying with industrial standards. Different from ordinary manufacturers, CHLORY provides flexible customized services tailored to diverse customer needs on product specifications, packaging and solutions. With direct factory pricing and optimized production processes, we help clients cut procurement costs and obtain high-quality, stable chemical supplies with comprehensive professional support.
