Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for recovering ethanol from organic waste liquid

A technology for recovering ethanol from organic waste liquid, applied in the field of industrial sewage treatment, can solve the problems of low purity of recovered ethanol, cumbersome operation process, low economic benefit, etc., achieves simple structure, avoids liquid enrichment, and improves secondary rectification efficiency. Effect

Inactive Publication Date: 2021-02-19
HANGZHOU XINDE ENVIRONMENTAL PROTECTION TECH
View PDF11 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of this utility model is complex, the operation process is cumbersome, the purity of recovered ethanol is low, and the economic benefit is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for recovering ethanol from organic waste liquid
  • System and method for recovering ethanol from organic waste liquid
  • System and method for recovering ethanol from organic waste liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown: a system for recovering ethanol from organic waste liquid, including waste liquid rectification tank 1, waste liquid rectification tower 2 with stainless steel orifice corrugated packing in the tower, stratifier 3, and front fraction collection tank 4 , ethanol product tank 5, lye storage tank 6, pretreatment kettle 7, low boiling condenser 8, waste liquid delivery pump 9, tower top condenser 10 and waste liquid feed pump 11, the top of the pretreatment kettle is provided with the first Four feed ports 18 and the fourth discharge port 19, the lye storage tank is connected with the fourth feed port 18 through the pipeline, and the fourth discharge port 19 passes through the low boiling condenser 8 and the waste liquid rectification through the pipeline The first feed port of the kettle 1 is connected, and the upper end of the waste liquid rectification tank is provided with a first feed port 12 and a first discharge port 13, and the first discharg...

Embodiment 2

[0041] The difference between embodiment 2 and embodiment 1 is that the waste liquid rectification tower 2 is provided with a stainless steel orifice plate corrugated packing whose surface is loaded with polyisopropylacrylamide (PNIPAm) gel, and its structural formula is:

[0042]

[0043] The recovery rate of the recovered ethanol in this embodiment is 92%, and the purity of the ethanol product is 93%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of industrial sewage treatment, in particular to a system and a method for recovering ethanol from organic waste liquid, the system comprises a waste liquid rectifying kettle, a waste liquid rectifying tower, a layering device, a front fraction collecting tank and an ethanol finished product tank, the upper end of the waste liquid rectifying kettle is provided with a first feed port and a first discharge port; the first discharge port is connected with the bottom of the waste liquid rectifying tower through a pipeline; a second discharge port and asecond feed port are formed in the tower top of the waste liquid rectifying tower, a third feed port is formed in the top of the layering device, a third discharge port is formed in the side face of the layering device, and the second discharge port is connected with the third feed port through a pipeline; and the third discharge port is respectively communicated with the second feed port, the front fraction collecting tank and the ethanol finished product tank through a three-way pipeline. The system is simple in structure, ethanol in the organic waste liquid is rectified and recycled into waste liquid as a raw material and a finished product through two times of rectification treatment, and economic benefits and environmental protection benefits are generated.

Description

technical field [0001] The invention relates to the technical field of industrial sewage treatment, in particular to a system and method for recovering ethanol from organic waste liquid. Background technique [0002] Industrial production or pharmaceutical industry will produce a large amount of organic waste liquid for disinfection and cleaning. The main components are ethanol and water (ethanol content is 73%, water content is 24%), and other components are impurities such as acid, methanol, and high boiling. At present, most of the waste ethanol is incinerated in China, but they have high energy consumption, large investment, incomplete treatment, and high operating costs. [0003] Recycling waste ethanol is a good solvent, which can dissolve many inorganic substances and many organic substances, so ethanol is often used to dissolve plant pigments or medicinal ingredients in them, and ethanol is also commonly used as a solvent for reactions, so that the participants in th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/80C07C31/08B01D3/14C02F9/10C02F101/30
CPCC07C29/80B01D3/146C02F1/04C02F1/66C02F2101/30
Inventor 冯烈孙琪钱晔吴方丽王朝妹蒋红华刘小兵蒋开炎
Owner HANGZHOU XINDE ENVIRONMENTAL PROTECTION TECH