Hydrogen Chloride is used to produce hydrochloric acid, which is a key compound in the following industries: chlor-alkali, vinyl chloride monomer for PVC plastics, pulp & paper, epichlorohydrin, etc… and has smaller scale applications in metallurgical processes, gelatine and food products, etc.
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VICHEM, HCl synthesis plants
VICHEM, HCl synthesis plants
Vichem’s units for HCl synthesis are designed on a three-in-one basis, including in only one unit the HCl gas synthesis, the cooling and the absorption process. This provides the following advantages:
- Simplified manufacture process flow, reduced operation staff and easy to handle
- Compact design for a small footprint
- Lower impurity content in the produced acid
- Longer lifetime
The unit consists of a burner, combustion chamber, an immersion cooling unit, falling film type absorber. We have chosen an immersion cooling system because it provides a number of benefits:
- good operation environment
- no vaporization spray
- safe and reliable operation
- no danger of burning-out during operation in case of power shutdowns
- wide range of possible capacities
- saving of water resources
- recovery of heat energy
Our design provides our clients with a number of flexible options:
- Hydrochloric acid concentration can reach up to 38%, and the absorbing liquid can be either water or weak hydrochloric acid.
- Anhydrous HCl gas can be also produced.
- We can design outlet HCl gas pressure according to our client’s requirements; we can offer micro negative pressure till high pressure.
- We can add a boiler system to benefit from the HCl synthesis heat, and hence produce steam