Process for catalytically converting methanol to formaldehyde

Details Process for catalytically converting methanol to formaldehyde Process for catalytically converting methanol to formaldehyde

1981-07-23

1982-11-09

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568474, 568472, 568471, C07C 47052, C07C 47055

Patent

active

043586236

ABSTRACT:
In catalytically oxidizing methanol in the vapor phase according to already-known processes for the production of formaldehyde, the hot formaldehyde-containing gaseous effluent of the catalytic converter is rapidly cooled by being passed through the tubes of a heat exchanger which are filled with balls composed of a solid which is substantially inert toward formaldehyde. As compared with a similar cooling system in which the tubes are empty or in which enhancement of heat transfer is attempted by using metal heat-transfer enhancement devices such as twisted metal ribbons, the present method affords reduced post-reaction decomposition of formaldehyde while at the same time allowing use of a relatively high temperature on the shell side of the heat exchanger whereby it becomes possible to raise steam at a pressure higher than that characteristic of the prior art.

REFERENCES:
patent: 1968552 (1934-07-01), Bond et al.
patent: 2462413 (1949-02-01), Meath
patent: 2504402 (1950-04-01), Field
patent: 2908715 (1959-10-01), Eguchi
patent: 3959383 (1976-05-01), Northeimer et al.
patent: 4029636 (1977-06-01), Lowry et al.
patent: 4097535 (1978-06-01), Yang et al.
Bergles, "Enhancement of Heat Transfer," vol. 6, 6th Int. Heat Transfer Conference, pp. 89-108, Pub Hemisphere Pub. Co. (1978).
Calderbank et al., "Trans. Inst. of Chem. Engrs." vol. 35, pp. 195-207 (1957).
Schluender, "Chem. Reaction Eng'g. Reviews--Houston", ACS Symp. Series 72 (1978).
Kirk-Othmer, "Ency. of Chem. Tech.", vol. 11, Third ed. p. 233, John Wiley & Sons.

Affiliated with

Also associated with

Rating

Process for catalytically converting methanol to formaldehyde 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 catalytically converting methanol to formaldehyde, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for catalytically converting methanol to formaldehyde will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-747026