Method and reactor system for converting oxygenate contaminants in an MTO reactor system product effluent to hydrocarbons
AssigneeExxonMobil Chemical Patents Inc.
InventorJohn Richard Shutt
Life of this patent
Estimating the term…
Abstract
Disclosed is a method and reactor system for converting oxygenate and/or olefin contaminants in a methanol to olefin reactor system product effluent to hydrocarbons, including paraffin compounds, preferably over a sulphided catalyst of the type Nickel or Cobalt combined with Molybdenum or Tungsten. In one embodiment, the oxygenate-containing stream to be hydrogenated comprises one or more of the following streams, alone or in combination: a quench tower bottoms stream, a water absorption unit bottoms stream, a C4+ stream, and/or a C5+ stream.
Claims8
A method for hydrogenating one or more of DME and C4+ components from an oxygenate to olefin reactor system to form paraffins, comprising:
- (a) providing an effluent stream from an oxygenate to olefin reactor system, wherein the effluent stream comprises ethylene, propylene, DME, and C4+ components;
- (b) separating the DME and C4+ components from the ethylene and propylene;
- (c) caustic treating the separated ethylene and propylene;
- and
- (d) hydrogenating at least a portion of the separated DME and C4+ components, wherein the hydrogenating includes contacting at least a portion of the separated DME and C4+ components with hydrogen and a catalyst to form paraffins.
Dependencies are inferred from the claim text.