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Hydrocarbon resid processing and visbreaking steam cracker feed

A visbreaking and cracker technology, which is applied in the fields of hydrocarbon oil treatment products, hydrocarbon oil treatment, and hydrotreating processes, and can solve problems such as easy scaling.

Active Publication Date: 2012-10-24
EXXONMOBIL CHEM PAT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional resid hydrotreating is known to produce very fouling products

Method used

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  • Hydrocarbon resid processing and visbreaking steam cracker feed
  • Hydrocarbon resid processing and visbreaking steam cracker feed
  • Hydrocarbon resid processing and visbreaking steam cracker feed

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Embodiment Construction

[0032] In one embodiment, a resid-containing, incipient thermally cracked effluent from a hydrotreater, preferably a resid hydrotreater, including those resid fractions boiling below 1050°F (about 566°C) and preferably Those resid fractions boiling below 1100°F (approximately 593°C) are further cracked extensively, such as in a visbreaker / separator, and used as feedstock to a steam cracker or other pyrolysis unit. In the pyrolysis unit, the vaporized fractions are converted to desired products, including olefins. Here the terms pyrolysis unit and steam cracker have the same meaning; both refer to what is commonly called a steam cracker, even though steam is optional.

[0033] According to the invention, the resid-containing crude oil or fractions thereof are hydrotreated. Typically resid hydrotreating according to the present invention may be carried out at a temperature of at least 600°F (315°C), preferably at least 650°F (343°C), more preferably at least 750°F (399°C). Pre...

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Abstract

The invention concerns integration of hydroprocessing and steam cracking. A feed comprising crude or resid-containing fraction thereof is treated by hydroprocessing and visbreaking and then passed to a steam cracker to obtain a product comprising olefins.

Description

[0001] related application [0002] This application claims the benefit and priority of US Provisional Patent Application No. 60 / 728,640 (2005B125), filed October 20, 2005, and also claims the benefit of US Provisional Patent Application No. 60 / 813,555 (2006B101), filed June 14, 2006. rights and interests. technical field [0003] This invention relates to a process for the preparation of olefins from crude oil or its resid-containing fractions. Background technique [0004] Thermal cracking of hydrocarbons is a widely used petrochemical process for the production of olefins such as ethylene, propylene, butenes, butadiene and aromatics such as benzene, toluene and xylenes. Each of these compounds is a valuable industrial product. For example, light olefins can be oligomerized (e.g., into lubricant base stocks), polymerized (e.g., into polyethylene, polypropylene, and other plastics), and / or functionalized (e.g., to form acids, alcohols, aldehydes, etc.), The listed materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/06
CPCC10G69/06C10G2300/107C10G2400/20
Inventor P·F·科森克恩S·H·布朗
Owner EXXONMOBIL CHEM PAT INC