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English Translations » 煤化工产品圈 » (Daily Question) Coal-to-oil and olefins discussion forum, 2

(Daily Question) Coal-to-oil and olefins discussion forum, 2018.1.11

2018-01-11 View Original

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3.jpg Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: What is the function of the debutanizing column in the (DMTO) olefin separation unit? It separates C4 compounds and components lighter than C4 from the top of the column, while C5 compounds and heavier components are obtained at the bottom of the column! Note: The answers will be automatically revealed two days later!
Reply #2 2018-01-11
Butane and the components lighter than butane are separated from the top of the tower, while C5 and the components heavier than C5 are obtained at the bottom of the tower.
Reply #3 2018-01-12
The C4 fraction and components lighter than C4 are separated from the top of the tower, while C5 and heavier fractions are obtained at the bottom of the tower
Reply #4 2018-01-12
The C4 fraction and components lighter than C4 are separated from the top of the tower, while C5 and heavier fractions are obtained at the bottom of the tower
Reply #5 2018-01-12
Separate C4 from the C5 component
Reply #6 2018-01-12
Short-answer question: (DMTO) The function of the debutanizer column in the olefin separation unit: to remove butane
Reply #7 2018-01-12
The debutanizer column (160T605) separates the C4,s components from the C5’s and heavier components. The feed to the butane stripping column comes from the bottom of the low-pressure propylene stripping column (160T502). The flow of mixed C4s from outside the boundary zone serves as a supplement to the reflux. The C4 products drawn from the top of the debutanizer are sent to the olefins tank farm as raw material reserves for the C4 unit. The C5+ products drawn from the tower bottom are sent to the olefins tank farm for sale as by-products. In the design, the C5+ content in mixed C4 shall not exceed 5 wt%, and the C4- content in mixed C5 shall not exceed 2.5 wt%.
Reply #8 2018-01-12
The C4 components and those lighter than C4 come out from the top of the tower, while the C5 heavy components are obtained at the bottom of the tower
Reply #9 2018-01-12
Answer: C4 and components lighter than C4 are separated at the top of the tower, while C5 and heavier components are obtained at the bottom
Reply #10 2018-01-12
Butane and components lighter than butane are separated at the top of the tower, while C5 and components heavier than C5 are obtained at the bottom

Translated at 2026-07-21 05:36:09

Original: https://bbs.hcbbs.com/thread-1896673-1-1.html

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