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Tryptophan TVR (Thermal Vapour Recompressor) evaporation, concentration and crystallization system, and method for concentrating and crystallizing by using system

An evaporation concentration and crystallization system technology, applied in the direction of evaporation separation crystallization, multi-effect evaporation, solution crystallization, etc., can solve the problems of insufficient secondary steam utilization, product quality decline, unqualified content, etc., to achieve maximum utilization of steam, improve Effects of crystallization quality and reduction of production cost

Active Publication Date: 2018-06-15
江苏澳创生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing evaporative concentration and evaporative crystallization systems have obvious defects such as high energy consumption, insufficient utilization of secondary steam, high emissions, large system temperature fluctuations that are difficult to control, and unstable crystallization quality.
In particular, the temperature fluctuations caused by steam fluctuations in the evaporation crystallization process lead to uneven crystal sizes during the crystallization process of tryptophan, resulting in a lot of powder crystals. decrease, cost increase

Method used

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  • Tryptophan TVR (Thermal Vapour Recompressor) evaporation, concentration and crystallization system, and method for concentrating and crystallizing by using system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a tryptophan TVR evaporation concentration crystallization system includes a first-effect evaporator 1, a first-effect separator 2, a second-effect evaporator 3, a second-effect separator 4, a crystallization heater 5, an evaporation crystallizer 6, a steam Jet pump 7, surface condenser 8, feed pump 9, first-effect circulation pump 10, second-effect circulation pump 11, circulation discharge pump 12, condensate pump 13, vacuum condensate pump 14, first-stage condensate tank 15, second-stage Condensed water tank 16, vacuum condensed water tank 17, primary heat exchanger 18, secondary heat exchanger 19, and tertiary heat exchanger 20;

[0035] The one-effect evaporator 1 forms a circulation passage with the one-effect circulating pump 10 through a pipeline, the one-effect evaporator 1 communicates with the one-effect separator 2 through a pipeline, and the one-effect separator 2 communicates with the second-effect evaporator 3;

[0036] Describ...

Embodiment 2

[0046] Embodiment 2 Concrete process is as follows:

[0047] The material is transported to the primary heat exchanger 18, the secondary heat exchanger 19, and the tertiary heat exchanger 20 in sequence through the feed pump 9, and performs heat exchange with the steam in the heat exchanger respectively to increase the temperature of the material. The material enters the upper feed port of the first-effect evaporator 1 and undergoes falling film evaporation. The material is transported from the lower outlet of the first-effect evaporator 1 to the inlet of the first-effect circulating pump 10 through pipelines, and is transported from the outlet of the first-effect circulating pump 10 to the The feeding port above the first-effect evaporator 1 performs circulation evaporation.

[0048] The material is transported through the outlet pipeline of the first-effect circulating pump 10 to the inlet of the second-effect circulating pump 11, and the second-effect circulating pump 11 tr...

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Abstract

The invention relates to a tryptophan TVR (Thermal Vapor Recompressor) evaporation, concentration and crystallization system, and a method for concentrating and crystallizing by using the system, which belong to the field of biotechnology manufacturing. A first effect evaporator and a first effect circulating pump form a circulation path through a pipeline; the first effect evaporator and a firsteffect separator are communicated through a pipeline; the first effect separator and a second effect evaporator are communicated; the second effect evaporator and a second effect separator are communicated; the second effect separator is connected with a second effect circulating pump through a pipeline; the second effect circulating pump is communicated with the second effect evaporator through apipeline; an evaporation and crystallization device and a circulation discharge pump form a circulation path through a pipeline; the evaporation and crystallization device is also communicated with asurface condenser; the surface condenser is connected with a vacuum condensation water tank through a pipeline; the vacuum condensation water tank is connected with a vacuum condensation water pump.According to the tryptophan TVR evaporation, concentration and crystallization system, and the method for concentrating and crystallizing by using the system provided by the invention, through ingenious and effective combination of an evaporation and concentration technology, a TVR technology, a multiple-effect evaporation technology, and an evaporation and crystallization technology, heat energyin various parts in the system are fully utilized, so that vapor and materials fully exchange heat to achieve heat balance, so that the whole system is stable in temperature, steady, and easy to control.

Description

technical field [0001] The invention relates to a tryptophan TVR evaporation concentration crystallization system and a method for concentration crystallization using the system, belonging to the field of biotechnology manufacturing. Background technique [0002] L-Tryptophan is one of the eight essential amino acids required by human and animal life activities. It plays a very important role in the growth, development and metabolism of humans and animals. It is called the second essential amino acid and is widely used in medicine, food and feed industries. The production method of L-tryptophan is mainly microbial fermentation, and the main processes are fermentation, sterilization, concentration, crystallization, centrifugation, drying and other processes. [0003] In the tryptophan production process, the concentration process and the crystallization process are generally two separate systems. The concentration process generally adopts single-effect evaporation concentra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/26B01D1/30B01D1/04B01D1/06B01D9/02
CPCB01D1/04B01D1/06B01D1/26B01D1/30B01D9/0031Y02P20/10
Inventor 周旭波王健王华萱方培新何亚章
Owner 江苏澳创生物科技有限公司
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