Device and method for producing normal propyl alcohol by utilizing carbon dioxide

A carbon dioxide, n-propanol technology, applied in chemical instruments and methods, ethylene production, preparation of organic compounds, etc., can solve problems such as devices and methods for large-scale production that have not yet been found, avoid air pollution and energy waste, and satisfy Environmental protection requirements, the effect of avoiding water waste

Pending Publication Date: 2017-10-20
南京荣欣化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic use of CO has not yet been found 2 Device and method for large-scale production of ethane

Method used

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  • Device and method for producing normal propyl alcohol by utilizing carbon dioxide
  • Device and method for producing normal propyl alcohol by utilizing carbon dioxide
  • Device and method for producing normal propyl alcohol by utilizing carbon dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Please refer to figure 1 , the invention discloses a device for producing n-propanol by utilizing carbon dioxide, which comprises a raw material mixing unit 1, a buffer unit 2, a reaction unit 3, a waste heat recovery unit 4, a rapid cooling unit 5, a compression unit 6, and a separation unit 7 in sequence according to the reaction steps , PSA unit 8, n-propionaldehyde production unit 9 and n-propanol production unit 10;

[0042] see figure 2 As shown, wherein the reaction unit 3 is a reaction furnace 31 with a feed preheater; a reaction furnace tube 32 is arranged in the reaction furnace 31; the reaction furnace 31 is a vertical box furnace;

[0043] The waste heat recovery unit 4 includes a primary waste heat boiler 41 and a secondary waste heat boiler 42;

[0044] The quenching unit 5 is a quenching tower comprising a liquid separator tank 51 at the top of the tower, a quenching water pump 52 at the bottom of the tower and a filter at the bottom of the tower (not ...

Embodiment 2

[0062] The device is the same as in Example 1.

[0063] Based on above-mentioned device, a kind of method utilizing carbon dioxide to produce n-propanol comprises following reaction process:

[0064] (1) Raw material mixing unit 1, buffer unit 2 and reaction unit 3: three feeds are mixed in raw material mixing unit 1, the first feed is ethane and recycled ethane, the second feed is carbon dioxide and recycled carbon dioxide , the third feed is water vapor; the three feeds enter the buffer unit 2 after being mixed, and then enter the feed preheater in the reaction unit 3, and enter the reaction furnace 31 after preheating to 100-400 ° C for a temperature rise reaction; The reaction furnace tube 32 is equipped with an ethane dehydrogenation catalyst. When the temperature is raised to 500-1100°C, ethane, carbon dioxide, and water vapor react under the action of the catalyst to generate the main product ethylene; and carbon monoxide, hydrogen, methane, C 3+ Hydrocarbons, water an...

Embodiment 3

[0076] Device is identical with embodiment 1;

[0077] Based on above-mentioned device, a kind of method utilizing carbon dioxide to produce n-propanol comprises following reaction process:

[0078] (1) Raw material mixing unit 1, buffer unit 2 and reaction unit 3: three feeds are mixed in raw material mixing unit 1, the first feed is ethane and recycled ethane, the second feed is carbon dioxide and recycled carbon dioxide , the third feed is water vapor; the three feeds enter the buffer unit 2 after mixing, and then enter the feed preheater in the reaction unit 3, and enter the reaction furnace 31 after preheating to 220 ° C for heating reaction; the reaction furnace The tube 32 is equipped with an ethane dehydrogenation catalyst. When the temperature is raised to 1000°C, ethane, carbon dioxide, and water vapor react under the action of the catalyst to produce ethylene as the main product; and carbon monoxide, hydrogen, methane, C 3+ Hydrocarbons, water and other by-products...

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Abstract

The invention discloses a device and a method for producing normal propyl alcohol by utilizing carbon dioxide. The carbon dioxide is adopted as a raw material; the device comprises a raw material mixing unit, a buffer unit, a reaction unit, a waste heat recovery unit, a rapid cooling unit, a compression unit, a separation unit, a PSA unit, a normal propanal production unit and a normal propyl alcohol production unit; the carbon dioxide is utilized for preparing ethylene, carbon monoxide and hydrogen, and the products are used as material supply for downstream normal propanal and normal propyl alcohol production; exhaust gas produced by the process is used as a fuel for evaporate steam, so that not only is the energy consumption requirement of the device met, but also the steam resource is saved, the maximum cyclic utilization of energy is realized, the pollutant emission is reduced, and the environment protection requirement is met; the follow-up process provides the raw material hydrogen for the previous process, so that the conversion rate of the materials is improved, the atmosphere pollution and the energy waste are avoided; the source problem of ethylene, hydrogen and carbon monoxide raw materials for a downstream device is solved, the product diversification of the enterprise is perfected, and the core competence of the enterprise is improved.

Description

technical field [0001] The invention relates to the field of carbon dioxide emission reduction, in particular to a device and method for producing n-propanol by utilizing carbon dioxide. Background technique [0002] With the development of modern industry, global energy consumption continues to increase rapidly, carbon dioxide (hereinafter referred to as CO 2 ) emissions (in terms of carbon) have grown from 40 million tons before the Industrial Revolution in 1860 to 6.04 billion tons in 1996. By 2100, the global CO 2 Total emissions are expected to rise to 36 billion tonnes. Countries around the world have noticed the crisis that the global environment is facing due to unsustainable energy production and development patterns. The "Kyoto Protocol" formulated in December 1997 requires some industrialized countries to reduce greenhouse gas emissions by an average of 5.2% on the basis of 1990 levels during 2008-2012. These show that: the most important greenhouse gas CO 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/141C07C31/10
CPCC07C5/333C07C29/141C07C45/505C07C31/10C07C11/04C07C47/02Y02P20/10Y02P30/40
Inventor 江南徐龙伢孙海兵林毓勇朱向学肖镱王涛陈福存黄敏江起培严正芳李刚王翔李旭东
Owner 南京荣欣化工有限公司
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