Process for the conversion of light olefins to ether-rich gasoli

Details Process for the conversion of light olefins to ether-rich gasoli Process for the conversion of light olefins to ether-rich gasoli

1990-04-04

1992-01-14

Willis, Jr., Prince

Fuel and related compositions

Liquid fuels

Organic oxygen compound containing

568694, 568697, C10L 500

Patent

active

050806912

ABSTRACT:
Light olefins are converted to gasoline with a high enough content of ethers to provide a significant octane improvement over a base (or `cracking`) gasoline (clear RON=90-92; clear MON=79-80). One portion of the olefins is hydrated to produce alcohols, and the other is used to synthesize an olefin-rich gasoline. The alcohols are used to etherify the gasoline. The combination of unit operations minimizes the energy needed to run the process for which no external solvent is needed. The process capitalizes on the higher solubility in gasoline of ethanol, propanol and butanol, compared to methanol. Besides having very low solubility in gasoline, etherification with methanol or ethanol produces an inadequately rewarding increase in octane number, compared to propanol or isopropanol. Taking advantage of the inherent chemical and physical properties of C.sub.3 -C.sub.4 alcohol/gasoline mixtures results both in an unexpectedly high octane number for the ether-rich gasoline as well as an effective and economical process for producing it. The improvement in octane is particularly noteworthy because the weight percent of oxygen in olefinic gasoline etherified with C.sub.3 -C.sub.4 alcohols is less than one-half that of gasoline etherified with either C.sub.1 or C.sub.2 alcohol.

REFERENCES:
patent: 2046243 (1936-06-01), Buc
patent: 3904384 (1975-09-01), Kemp et al.
patent: 3912463 (1975-10-01), Kozlowski et al.
patent: 4468233 (1984-08-01), Bruderreck et al.
patent: 4647703 (1987-03-01), Torck et al.
patent: 4827045 (1989-05-01), Harandi et al.
patent: 4857664 (1989-08-01), Huang et al.
Organic Chemistry, Fifth Edition by Morrison and Boyd; Allyn and Bacon, Inc.; 1987; pp. 43, 639, 640.
The Merck Index, 11th Edition; Susan Budavari, Editor; 1989 Copyright; "Gasoline", Article 4270, p. 684.

Affiliated with

Also associated with

Rating

Process for the conversion of light olefins to ether-rich gasoli does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the conversion of light olefins to ether-rich gasoli, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the conversion of light olefins to ether-rich gasoli will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-538531