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

A kind of removal method of methanol in the material containing isobutene

A technology for isobutylene and materials, which is applied in the field of water washing and removal of methanol in materials, and can solve the problems that the efficiency of water washing and removal needs to be further improved

Active Publication Date: 2016-12-07
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the removal efficiency of methanol in the above-mentioned isobutylene-containing materials still needs to be further improved.

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
  • A kind of removal method of methanol in the material containing isobutene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The water washing device used in this embodiment is a static mixer and a water washing tower connected in series; the static mixer is a horizontally placed stainless steel pressure tank with a baffle, and the volume is 2L, and the water washing tower is a stainless steel packed tower, the bottom and the top It is the enlarged part, and the upper enlarged part has a visible window, which is convenient for observing the oil-water interface. Its inner diameter is 33mm, and the filler is The ceramic ring, the filling height is 2m. Apply ultrasonic waves to the static mixer, control the ultrasonic frequency to 35KHZ, the power to 50KW, the pressure of both the static mixer and the washing tower to be 0.6MPa, and the temperature to be 25°C.

[0017] The material to be separated to remove methanol is the material after MTBE cracking, and its composition is: isobutene 56.19wt%, methanol 32.81wt%, MTBE 10.19wt%, dimethyl ether 0.37wt%, water 0.24wt%, others 0.20wt% , hereinaft...

Embodiment 2

[0020] The methanol in the isobutylene material was removed in the same way as in Example 1, except that the ultrasonic wave was applied intermittently, each action time was 15 minutes, and each intermittent time was 10 minutes; the results are shown in Table 1.

Embodiment 3

[0022] Remove the methanol in the isobutylene material with the same method as in Example 1, the difference is that the washing water adopts mode b to enter the methanol removal system, and mode b means that 1 / 3 of the total washing water does not pass through the static mixer directly from The top of the washing tower is showered, and 2 / 3 of the total amount of washing water is first mixed with the oil phase through a static mixer and then enters from the bottom of the washing tower. The washing water of 0.36KG / h, that is, 1 / 3 of the washing water directly enters the washing tower from the top of the washing tower; while the washing water of 0.72KG / h, that is, 2 / 3 of the washing water first enters the static mixer, and then from the static mixer. The mixer is sent to the lower part of the water washing tower; the material A containing isobutylene also enters the static mixer first, and then is sent to the lower part of the water washing tower from the static mixer, and its fee...

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
heightaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for removing methanol from isobutene-containing materials, comprising first mixing water and isobutene-containing materials in a static mixer, and then sending the mixture into a water washing tower to separate methanol from oil phase materials, wherein water and isobutene-containing materials The mixing process of the isobutylene material in the static mixer is carried out in the presence of ultrasonic waves, and the power of the ultrasonic waves is 0.01-100KW, and the frequency is 10-1000KHZ. Specifically, the isobutene-containing material is, for example, produced by cracking MTBE. In the present invention, the ultrasonic waves are applied to the static mixer, which can improve the washing efficiency, reduce the washing ratio, reduce the operation difficulty of the device, reduce energy consumption and material consumption; at the same time, the present invention does not introduce other impurities, and has no pollution and simple operation , The advantage of not requiring high equipment.

Description

technical field [0001] The invention relates to a method for removing methanol from isobutene-containing materials, in particular to a method for washing and removing methanol from isobutene-containing materials. Background technique [0002] In the production process of isobutene produced by MTBE (methyl tert-butyl ether) cracking, methanol is one of the reaction products accompanied by isobutene. In industry, methanol is easily soluble in water, while isobutene is insoluble in water. Generally, washing with water is used. The methanol is removed by washing the tower with water. Specifically, in the continuously operated water washing tower, the water phase is the dispersed phase, and the methanol-containing isobutene material (referred to as oil) is the continuous phase. The methanol-containing oil is fed from the lower part of the water washing tower, and the washing water is fed from the upper part of the water washing tower. The two liquid phases are in continuous reve...

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 Patents(China)
IPC IPC(8): C07C11/09C07C7/00
Inventor 赵岚闫岩王争杨怀军庄书红
Owner CHINA PETROLEUM & CHEM CORP