The sulfonic acid is mostly a synthetic product, the sulfonic acid group is a strongly water-soluble strong acidic group, and the sulfonic acid is a water-soluble strongly acidic compound. The sulfonic acid group in the aromatic sulfonic acid molecule can be substituted by a hydroxyl group or a cyano group, and is an intermediate for preparing a phenol or a nitrile. The sulfonic acid can be prepared by a sulfonation reaction of an aromatic hydrocarbon or an oxidation reaction of a thiol. Methanesulfonic acid can be used as a catalyst for esterification, hydrolysis and alkylation. The sodium salt of a long chain sulfonic acid such as n-C11H23-CH2 is a class of detergents resistant to hard water. Sulfonic acid groups in many dye molecules allow water-soluble compounds to be water soluble. Sodium dodecylbenzene sulfonate can be used as a detergent. Chlorinated sulfone can be obtained from sulfonic acid and is widely used in organic synthesis. The hydrazine H moiety in the sulfonic acid molecule may be substituted by a halogen atom, an amino group or the like.
Absorption Tower Sulphuric Acid Plant
Multi-tube falling film sulphonation (sulfation) reactor is used in this absorption tower sulphuric acid plant.
The organic feed materials include DDB, LAB, fatty alcohols, laurel ether, α-olefins etc.
Two control alternatives are available: conventional or computer controlled.
The absorption tower sulphuric acid plant is composed of following Processing units:
— Air drying
— Sulfur melting and dosing
— Sulfur burning and SO3 generation
— Exhaust gas treatment
Capacity: 500 kg/h to 3,000 kg/h
The multi-tube falling film sulphonator supplied by our company is one of the most advanced Sulphonation reactor in the world. Besides the sodium salt of linear alkylbenzen(LAS),it also can produce alcohol ethoxylate sulfate (SLES), alpha-olefin sodium sulfonates(AOS),sodium alcohol sulfate (SAS), and fatty acid methyl ester sulfonates(MES).Varieties of sulphonation products could meet the market demands well.
The process control project of sulphonation production line supplied by our company could realize the complete automatization.
Control the whole absorption tower sulphuric acid plant by the computer system(PLC or DCS).The operator could make dialogs with computer by keyboard(worktable).The process parameters are controlled from computer. Also the computer controls the actuating mechanisms of the filed instruments to meet the required operating parameters for the sulphonation process.