Distillation: processes – separatory – With chemical reaction
Patent
1981-08-27
1983-07-05
Sever, Frank
Distillation: processes, separatory
With chemical reaction
203 41, B01D 314
Patent
active
043916775
ABSTRACT:
A process is disclosed for producing a substantially sulphur-free, butene-1 rich stream from a butene-containing C.sub.4 hydrocarbon feed stream by passage through a desulphurization zone, e.g. successive beds of active alumina and zinc oxide, and then distilling it. The desulphurization zone adsorbs, absorbs or converts to higher boiling sulphurous compounds low boiling sulphurous impurities such as H.sub.2 S, COS and CH.sub.3 SH. A sulphur-free butene-1 rich stream is recovered overhead from the distillation zone, while a butene-2 rich stream containing higher boiling sulphurous impurities originally present or produced in the desulphurization zone is recovered as a bottom product. A dechlorination zone (containing, for example, a charge of copper impregnated active carbon) can be provided upstream or downstream from the desulphurization zone but upstream from the distillation zone or can be provided in the path of the butene-1 rich stream from the distillation zone. The butene-1 rich product is suitable for use as a hydroformylation feedstock.
REFERENCES:
patent: 2768942 (1956-10-01), Marple et al.
patent: 2818458 (1957-12-01), Harclerode et al.
Flintoff John F.
Harris Norman
Kippax John W.
Davy McKee (Oil & Chemicals) Limited
Sever Frank
LandOfFree
Process for producing substantially sulphur-free butene-1 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 producing substantially sulphur-free butene-1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing substantially sulphur-free butene-1 will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1438874