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Recovery of component (c4) alkanal

A technology of alkanal and heat recovery, applied in the direction of chemical recovery, sustainable manufacturing/processing, hydrocarbon oil processing products, etc., can solve the problem of cracking facilities being shelved and unattractive

Pending Publication Date: 2022-03-18
EASTMAN CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It is also expected to continue to obtain from cracking facilities for the production of (C 4 ) feedstock for alkanals, the cracking facility itself may be put on hold as production from natural gas fields or oil becomes economically unattractive

Method used

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  • Recovery of component (c4) alkanal
  • Recovery of component (c4) alkanal
  • Recovery of component (c4) alkanal

Examples

Experimental program
Comparison scheme
Effect test

example

[0680] R-thermo-hydrolyzed oil Example 1-4

[0681] Table 1 shows the composition of the R-pyrolytic oil sample by gas chromatography. The R-pyrolytic oil sample is prepared from a high and low density polyethylene, polypropylene, and polystyrene. Sample 4 is a sample of laboratory distillation, wherein the hydrocarbon greater than C21 is removed. The boiling point of these materials is shown Figure 13-16 middle.

[0682] Table 1. Gas chromatographic analysis of R-

[0683]

[0684]

[0685]

[0686]

[0687] R-Pyrolysis Oil Example - 5-10

[0688] Six R-pyrolytic oil compositions were prepared by distillation R-thermo-hydrolyzed oil samples. They are prepared by processing materials according to the following procedures.

example 5

[0689] Example 5. R-pyrolyzed oil at least 90% at 350 ° C, 50% between 95 ° C and 200 ° C, at least 10% boiling at 60 ° C.

[0690] 250 g of the R-pyrolytic oil sample from Example 3 was distilled by 30-disc glass Oldershaw tower, which is equipped with ethylene glycol cooled condenser, a thermometer-containing thermometer sleeve and a reflow of magnets adjusted by electronic timer Controller. DC distillation is carried out at an atmospheric pressure ratio of 1: 1. The liquid fraction is collected every 20ml, record the temperature and quality of the tower to construct Figure 17 The boiling curve shown. Repeated distillation until about 635 g of substances were collected.

example 6

[0691] Example 6. At least 90% boiling at 150 ° C, 50% between 80 ° C and 145 ° C, and at least 10% boiling R-pyrolysis oil at 60 ° C.

[0692] 150 g of the R-pyrolytic oil sample from Example 3 was distilled by 30-disc glass Oldershaw tower, which is equipped with a condenser of ethylene glycol, a thermometer-containing thermometer sleeve and a reflow of magnets modulated by electronic timer. Controller. DC distillation is carried out at an atmospheric pressure ratio of 1: 1. The liquid fraction is collected every 20ml, record the temperature and quality of the tower to construct Figure 18 The boiling curve shown. Repeated distillation until about 200 g of substances were collected.

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Abstract

The recovery component ethylene is fed to a reactor to produce propionaldehyde having the recovery component. The recovered ethylene feedstock is derived directly or indirectly from cracking of the recovered component pyrolysis oil. The pyrolysis oil can be cracked in a gas furnace or a cracking furnace.

Description

Background technique [0001] Waste, especially non-biodegradable waste, when disposed on landfill after use, will have a negative impact on the environment. Therefore, from the perspective of the environment, it is desirable to recover the waste as much as possible. However, from an economic point of view, recycled waste may be challenging. [0002] Although some waste recovery is relatively easy, other waste needs a lot of and expensive for reuse. In addition, different types of waste typically require different types of recovery process. [0003] In order to maximize recovery efficiency, it is desirable that large-scale production facilities can process raw materials having recovery components derived from various waste. Commercial facilities involving products that produce non-biodegradable products or ultimate destinations for landfills can greatly benefit from the use of recovery ingredients. [0004] Some recycling work involve complex and detailed waste flow separation, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/50C07C47/02
CPCC07C45/50C07C4/04C07C47/02C07C11/06C10G9/00C10G1/10C10G3/00C10G2400/20Y02P30/20C07C45/505
Inventor 大卫·尤金·斯莱文斯基肯尼·伦道夫·帕克威廉·刘易斯·特拉普达里尔·贝汀迈克尔·加里·波拉塞克武显春
Owner EASTMAN CHEM CO