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

Improved butanol recovery process and device

A butanol, propanol technology, applied in separation methods, organic chemistry methods, chemical instruments and methods, etc., can solve problems such as process addition complexity, process limitations and/or costs

Active Publication Date: 2014-01-01
INVISTA TEKSTAJLS
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above methods for separating compounds such as butanol from a mixture from water can add complexity, process limitations and / or cost to the process

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
  • Improved butanol recovery process and device
  • Improved butanol recovery process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This experimental example comprises an embodiment of the process of the invention comprising three distillation columns and two phase separators, i.e. evaluating figure 1 The top, side and bottom streams of distillation column 110, and the top and bottom streams of column 120. A feed comprising 33% water, 32% methanol, 2% propanol, and 33% butanol is fed to a side inlet of a distillation column, such as column 110, maintained at atmospheric pressure. corresponds to figure 1 The overhead stream of stream 10 contained 4% water, 96% methanol, 0% propanol, 0% butanol, had a temperature of 65°C and a color factor greater than 30. corresponds to figure 1 The side stream of stream 12 contained 91.5% water, 0.8% methanol, 0.9% propanol, and 6.8% butanol and had a temperature of about 92°C. corresponds to figure 1 The bottom stream of stream 17 contained 0.05% water, 0.00% methanol, 0.01% propanol, 99.94% butanol and had a temperature of about 117°C and a color factor gr...

Embodiment 2

[0072] The experimental example includes a second distillation column such as figure 2 Column 210 is an embodiment of the process of the present invention. A feed comprising 36% water, 10% methanol, 7% propanol, and 47% butanol is fed to a side inlet of a distillation column, such as column 210, maintained at atmospheric pressure. corresponds to figure 2 The overhead stream of stream 34 contains 6.4% water, 85.5% methanol, 6.5% propanol and 1.6% butanol and has a temperature of about 66°C. corresponds to figure 2 The bottom stream of stream 36 contained 41.8% water, 0.5% methanol, 4.9% propanol, and 51.0% butanol and had a temperature of about 92°C. The organic portion of the bottom stream, i.e. in the figure 2 After processing in a phase separator such as separator 250, further use figure 2 of distillation columns 220 and 230 or figure 1 The distillation columns 110 and 120 are processed. Use when recovery of methanol is required figure 2 The construction of wi...

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

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
boiling pointaaaaaaaaaa
Login to View More

Abstract

The present invention provides an improved process for recovering butanol from a mixture comprising water, methanol, propanol, butanol and optionally other organic compounds. More particularly, the invention relates to a process for recovering butanol as an essentially pure product from a mixture comprising water, methanol, propanol, butanol and other organic compounds.

Description

technical field [0001] The present invention relates to an improved method and apparatus for the recovery of butanol from a mixture comprising water, methanol, propanol, butanol and optionally other organic species that provide an undesired color. More specifically, the present invention relates to methods for recovering butanol as a pure product (e.g., about 95 to 100 wt. % butanol) method and apparatus. Background technique [0002] In processes such as those used to convert acetylene to butanediol, a number of by-products are produced in addition to butanediol. These by-products, which are difficult to separate, include water, methanol, propanol, butanol, and various organic species that provide unfavorable colors. SRI of IHS, Inc. (321 Inverness Drive South, Englewood, CO80112, USA) in its Process Economics Report96B , entitled "Polybutylene Terephthalate (PBT) and Butanediol" (see http: / / chemical.ihs.com / PEP / public / reports / phase_95 / A process is given in rp096B / ) in...

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): C07C29/80C07C29/76C07C31/12C07C31/04
CPCC07C31/12C07C29/80C07B63/00C07C29/76C07C29/74B01D3/10B01D3/143C07C29/82
Inventor 格雷厄姆·艾尔德科林·安德森拉克海什·马丁菲利普·N·沃德阿什利·韦尔斯罗伯特·E·史提森
Owner INVISTA TEKSTAJLS