A kind of tobacco extract concentration process

Abstract

The invention relates to a process for concentrating tobacco extract, belonging to the technical field of concentrating tobacco extract. The process is to micro-filter the tobacco water extract after primary purification, carry out forward osmosis concentration on the microfiltration permeate, and recover and recycle the diluted drawing solution formed by the forward osmosis concentration by electrodialysis or drying salt. The process of the invention has low operating pressure and high safety; the concentration temperature is low, the temperature rise is small during concentration, and heat exchange and temperature reduction are not required; the membrane pollution is light, the cleaning is simple and the cleaning frequency is low. At the same time, the process of the present invention has a high degree of concentration, and the concentration of the tobacco extract after concentration can reach 60%; in the process of concentrating the tobacco extract of reconstituted tobacco leaves in the papermaking method, it can completely replace evaporation and concentration; and the loss of materials, nicotine and volatile components in the process of concentration Small, low energy consumption, easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of concentrating tobacco extract, and in particular relates to a process for concentrating tobacco extract. Background technique [0002] In the production of reconstituted tobacco leaves by the papermaking method, the extraction of tobacco raw materials includes two methods: mixed extraction of stems and leaves and fractional extraction of stems and leaves. The batch or continuous extraction process is adopted. Regardless of the extraction method, the concentration of the tobacco extract is generally between 6-6. Between 12%. [0003] The concentration of tobacco extract is a process in the production of reconstituted tobacco leaves by the papermaking method. The purpose is to increase the concentration of the extract to a high concentration of 40-50% by mass, which is suitable for the base coating of reconstituted tobacco leaves. [0004] In the production of reconstituted tobacco leaves by the papermakin...

AI Technical Summary

Problems solved by technology

However, there are problems such as nanofiltration and reverse osmosis that need to be driven by high pressure and use heat exchange equipment to cool down, and the reverse osmosis membrane will be seriously polluted during use, making it difficult to clean

At the same time, in the production process of tobacco water extraction extract, evaporation, nanofiltration and reverse osmosis concentration methods are also used, and the same problems mentioned above exist.