Special intercepted vacuum tail gas scrubbing tower supporting fatty acid distillation process

Abstract

The invention relates to a special intercepted vacuum tail gas scrubbing tower supporting fatty acid distillation process. The scrubbing tower comprises a trapping device and a scrubbing tower main body. The scrubbing tower main body includes a cylinder body and upper and lower seal heads arranged at the upper and lower ends of the cylinder body. An upper liquid distributor, a wire mesh demister,a middle liquid distributor and a regular packing layer are disposed in the scrubbing tower main body from top to bottom in order, and the regular packing layer is located above an air inlet, the regular packing layer and the middle liquid distributor cooperate to form a first trapping section, the wire mesh demister and the upper liquid distributor cooperate to compose a second trapping section,and the first trapping section and the second trapping section compose the trapping device together. The scrubbing tower can support the fatty acid distillation process to treat intercepted vacuum miscellaneous tail gas and trap liquid components in the tail gas, thus reaching the positive significance of lowering the emission of oily tail gas, protecting the vacuum system, improving the product yield, increasing the yield of the distillation process, and reducing emission.

Description

technical field [0001] The invention relates to the field of chemical and chemical distillation technology, in particular to a special washing tower for trapping vacuum tail gas matched with the fatty acid distillation technology. Background technique [0002] With the rapid development of the oleochemical industry, various fatty acid products with different carbon chain lengths have been developed and applied to various industries, which further expands the market for fatty acid products with different carbon chain lengths and increases the demand. In the production process of fatty acid products, vacuum distillation is basically used to achieve the purpose of energy saving. This requires a vacuum system, and fatty acids are highly corrosive at high temperatures and are easy to corrode the jet heat pump, so that the stability of the vacuum degree is affected by fluctuations in the distillation effect. The quality of the effect has a great influence on the effect and life o...

AI Technical Summary

Problems solved by technology

To achieve its function, the fatty acid primary condenser mainly depends on the cooling medium in its shell side. If the cooling capacity is too strong, the fatty acid components with lower boiling points and other pigment impurities will all be condensed, and it is difficult to realize the purification of fatty acid products. Purpose, if the cooling capacity is too weak, some of the fatty acid components that should have been condensed will remain gaseous and overflow, resulting in a decrease in the yield of fatty acid products

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