Stock Code: 603282

Distillation column MVR Heat Pump Energy Saving renovation

Separation of components with similar boiling points; Large consumption and high price of steam and circulating water; Widely used in the recovery, separation and purification of organic solvents such as methanol, ethanol, isopropanol, acetone, acetonitrile, tetrahydrofuran, dichloromethane, ethyl acetate, toluene products.

Application

chemical

pharmaceutical

environmental protection

biopharmaceutical

Product advantage

Independent

R&D

AGT, with rich experience in pharmaceutical machinery development and production, has jointly developed with its subsidiary Leheng's MVR steam recompression core technology.

The goal of carbon neutral

This system effectively avoiding the disadvantage of traditional distillation system’s high energy consumption. This system also advantaged in better separation effect and energy-saving to help achieve the goal of carbon neutral.

50%

Save over of total

Energy consumption

80%

save over of steam

Technical principle

Heat pump distillation process

Continuous compression cycle of secondary steam as a heating source

Compressing the low-temperature gas at the outlet through the compressor without condensation, increase the temperature and pressure of the gas, increase the enthalpy value of the gas, and then use it as the heat source of the reboiler to heat the material, making full use of the latent heat of the gas and reducing the production of steam. consumption and circulating water to reduce operating costs.

Processdisplay

Indirect steam compression type

The feed mother liquor enters the distillation column after three-stage preheating, and is separated in the distillation tower. The liquid flows from the bottom of the distillation tower into the reboiler. The reboiler is equipped with a coupled reboiler and an auxiliary reboiler. The coupled reboiler is the heat source of the boiler is the high-pressure gas at the outlet of the compressor, and the heat source of the auxiliary reboiler is raw steam. The gas at the top of the distillation tower is compressed by the compressor and becomes high-temperature and high-pressure gas. The high-temperature and high-pressure gas enters the coupled reboiler for heat exchange. After condensation, it is light. The components are partially extracted and partially refluxed, and the heavy components at the bottom of the tower reactor enter the preheater and exchange heat with the feed mother liquor before being discharged.

Tower top steam compression type

A compressor is introduced into the traditional distillation column system. The low-temperature and low-pressure steam at the top of the tower is compressed by the compressor and becomes a high-temperature and high-pressure gas. It then passes through the reboiler as a heat source to heat the material, and the light components are condensed through the reboiler. The condensate is buffered by the buffer tank and then transported by the reflux pump. Part of it is extracted and part of it is refluxed

Customizeddesign

Customized design

Based on your existing heat pump distillation equipment and operating conditions,

we provide MVR heat pump energy-saving renovation solutions to maximize its energy-saving effect;

Customize different types and pressure ratios of steam compressors according to different

operating conditions and technical requirements in different fields and specific environments.

Supporting compressor：Centrifugal Steam Compressor

MVR steam recompression energy-saving technology provided by Leheng, a subsidiary of AGT

01

we are one of the few evaporator manufacturers in China that has mastered steam power equipment technology.

02

Leheng with independent research and development property rights in MVR core technology.

03

Compressors of different categories and models can be flexibly applied to different application scenarios

Impeller

Customize the design of the compressor impeller according to your requirements to meet stringent performance requirements

Over 30000 hours of operating life

Through high-strength materials, precise processing technology, and strict testing methods, we ensure that the service life of the impeller reaches 30,000 hours.

High strength titanium alloy TC4 carefully forged

The impeller material is forged from high-strength, wear-resistant, and highly corrosion-resistant titanium alloy material, and is precision milled through a five-axis linkage milling machine.

Excellent dynamic balance performance and high standard strength testing

It has passed double-sided dynamic balancing of no less than G1.0 level and an overspeed test of no less than 15% of the working speed to verify its strength.

Strict factory inspection

After each impeller is processed, it undergoes strict factory inspections such as non-destructive testing and three-dimensional testing, providing customers with products that meet quality requirements.

Specification

ApplicationCases

Energy consumption comparison between heat pump distillation and traditional distillation column

A. 2500m ³/ D Ammonia nitrogen wastewater treatment system heat pump renovation project

Renovate the existing deamination tower with a heat pump. The ammonia-containing vapor at the top of the tower enters the falling film evaporator to exchange heat with water. After the heat exchange, the vaporized low-temperature and low-pressure water vapor enters the compressor and becomes high-temperature and high-pressure gas after compression and enters the tower. The kettle coupled reboiler exchanges heat with the tower kettle wastewater to save industrial steam consumption.

Table 1: Parameters of ammonia nitrogen wastewater to be treated
No.	Item	Unit	Value	Remark
1	Amount of water	m³/d	2500
2	pH	Dimensionless	12~12.8
3	NH3	g/L	5~10	Calculated by 6
4	Na2SO4	g/L	100~150
5	Ni、Co、Mn	mg/L	100~200	Calculated by 100
6	Temperature	℃	20~60
7	Cl-	mg/L	＜20

Table 2: Deamination tower top kettle outlet parameters
Customer parameter requirements	Item	Unit	Value	Remark
Ammonia-containing steam at the top outlet of the tower	Flow	t/h	12.56	To evaporator
	Component		Ammonia (20%), water
	Temperature	℃	95±5
	Pressure	kPa	101
High temperature water at the outlet of the tower kettle	Flow	t/h	107	Reboiler
	Component		Water, sodium sulfate (100-150g/L), nickel cobalt manganese hydroxide (150-300mg/L), pH approximately 12
	Temperature	℃	105±5
	Pressure	kPa	101

Energy consumption comparison
Comprehensive field application, the theoretical calculation through the large-scale chemical engineering simulation software Aspen Plus is as follows
Utility Conditions	Circulating water	0.2	Yuan/T
	Electricity	0.7	kW.h
	Steam	250	Yuan/T
Continuous operation for one year	Hour	7920	330 days

Feeding 105m³/h ammonia-containing wastewater, operating cost comparison table
Device	Utilities	traditional distillation		Heat pump distillation
Device	Utilities	Energy consumption	Yuan/H	Energy consumption	Yuan/H
Reboiler	Steam T/H	9 t/h	2250	4 t/h	1000
Condenser	Circulating water T/H	904 t/h	180.8	600 t/h	120
Pump	Motor KW	20 kw/h	14	90 t/h	63
Compressor	Motor KW	0 kw/h	0	670 t/h	469
Total/yuan		2445		1652
Every 1 ton of wastewater treated Total/yuan		23.3		15.7
One year operating cost/10000 yuan		1936		1308
Annual cost savings/10000 yuan		628
From the comparison in the above table, it can be seen that heat pump distillation saves operating costs of 6.28 million per year. The operating costs are calculated based on the parameters in Table 1 and Table 2 above. Changes in actual operating data will affect the operating costs.

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Stock Abbreviation : Yaguang Shares

Stock Code : 603282

Contact

Address : No. 558 Binhai 8th Road, Binhai Park, Economic and Technological Development Zone, Wenzhou, Zhejiang Province, China

Te : +86-0577-86906886

Fax : +86-0577-86906900

E-mail : marketing@china-yaguang.com

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