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US 2016/0102031 A1Published application
Apparatus and process for producing gasoline, olefins and aromatics from oxygenates
AssigneeExxonMobil Research and Engineering Company
InventorsBing Du, Samuel A. Tabak, Mitch L. Hindman, Eric B. Shen, David L. Johnson, Mohsen N. Harandi, Clay R. Sutton, Lu Han, Michael F. Raterman, Zhongcheng Wang, Rohit Vijay, Stephen J. McCarthy
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Abstract
Apparatuses and processes for converting an oxygenate feedstock, such as methanol and dimethyl ether, in a fluidized bed containing a catalyst to hydrocarbons, such as gasoline boiling components, olefins and aromatics are provided herein.
Claims27
A process for converting an oxygenate feedstock to a C5+ gasoline product comprising:
- a. feeding the oxygenate feedstock to a fluidized bed reactor under conditions to convert the oxygenate feedstock to a hydrocarbon mixture in a reactor effluent, wherein the fluid bed reactor comprises:
- i. a catalyst;
- and
- ii. at least one packing layer;
- b. cooling the reactor effluent comprising the hydrocarbon mixture and condensing a portion of the reactor effluent to form a mixed phase effluent;
- c. separating the mixed phase effluent into an aqueous liquid phase, a hydrocarbon gas phase and a hydrocarbon liquid phase;
- and
- d. separating a C4− light gas comprising C2-C4 olefins and the C5+ gasoline product from the hydrocarbon gas phase and the hydrocarbon liquid phase.
5 more elements
An apparatus for producing a C5+ gasoline product comprising:
- (a) a fluidized bed reactor comprising:
- i. a fluid inlet for a feedstock;
- ii. a catalyst;
- and
- iii. at least one packing layer;
- (b) a cooler for cooling the reactor effluent and condensing a portion of the reactor effluent to form a mixed phase effluent;
- (c) a separator for separating the mixed phase effluent into a gas hydrocarbon stream, a water stream, and a liquid hydrocarbon stream;
- (d) a means for transporting the reactor effluent from the fluid bed reactor to the separator;
- (e) at least one fractionating column for producing the C5+ gasoline product;
- and
- (f) a means for transporting the liquid hydrocarbon stream and gas hydrocarbon stream to the at least one fractionating column.
8 more elements
A process for converting an oxygenate feedstock to a C5+ gasoline product comprising:
- a. feeding the oxygenate feedstock to a fluidized bed reactor under conditions to convert the oxygenate feedstock to a hydrocarbon mixture comprising C5+ gasoline product in a reactor effluent, wherein the fluidized bed reactor comprises:
- i. a catalyst;
- and
- ii. two packing layers, which separate the fluidized bed reactor into two stages;
- b. cooling the fluidized bed reactor either internally or externally;
- c. transferring spent catalyst comprising coke to an air stream in fluid connection with the fluidized bed reactor and a regenerator;
- d. feeding the air stream containing spent catalyst to the regenerator and burning the coke off of the catalyst to form regenerated catalyst;
- and
- e. transferring the regenerated catalyst from the regenerator to the fluidized bed reactor, wherein the regenerator is in fluid connection with the fluidized bed reactor.
6 more elements
A process for converting an oxygenate feedstock to a C5+ gasoline product comprising:
- a. heating the oxygenate feedstock;
- b. feeding the oxygenate feedstock to a fluidized bed reactor under conditions to convert the oxygenate feedstock to a hydrocarbon mixture comprising C5+ gasoline product in a reactor effluent, wherein the fluidized bed reactor comprises:
- i. a catalyst;
- and
- ii. two packing layers, which separate the fluidized bed reactor into two stages;
- c. cooling the fluidized bed reactor either internally or externally;
- d. transferring the reactor effluent to a set of two stage cyclones in fluid connection with the fluidized bed reactor;
- e. separating reactor vapor from the catalyst in the two stage cyclones and removing catalyst fines to a fines collection unit;
- f. transferring the reactor effluent to a heat exchanger in fluid connection with the fines collection unit and cooling the reactor effluent and condensing a portion of the reactor effluent against incoming oxygenate feed to form a mixed phase effluent;
- g. transferring the mixed phase effluent to a separator in fluid connection with the heat exchanger and separating the mixed phase effluent into an aqueous liquid phase, a hydrocarbon gas phase and a hydrocarbon liquid phase;
- h. transferring the hydrocarbon gas phase and the hydrocarbon liquid phase to a stabilizer/de-butanizer in fluid connection with the separator, wherein a portion C4− light gas comprising C2-C4 olefins and LPG and the C5+ gasoline product are separated;
- i. recycling a portion of the C4− light gas;
- j. transferring spent catalyst comprising coke to an air stream in fluid connection with the fluidized bed reactor and a regenerator;
- k. feeding the air stream containing spent catalyst to the regenerator and burning the coke off of the catalyst to form regenerated catalyst;
- and
- l. transferring the regenerated catalyst from the regenerator to the fluidized bed reactor, wherein the regenerator is in fluid connection with the fluidized bed reactor.
13 more elements
A process for converting an oxygenate feedstock to a C5+ gasoline product comprising:
- a. heating the oxygenate feedstock;
- b. feeding the oxygenate feedstock to a fluidized bed reactor under conditions to convert the oxygenate feedstock to a hydrocarbon mixture comprising C5+ gasoline product in a reactor effluent, wherein the fluidized bed reactor comprises:
- i. a catalyst;
- and
- ii. two packing layers, which separate the fluidized bed reactor into two stages;
- c. cooling the fluidized bed reactor either internally or externally;
- d. transferring the reactor effluent to a set of two stage cyclones in fluid connection with the fluidized bed reactor;
- e. separating reactor vapor from the catalyst in the two stage cyclones and removing catalyst fines to a fines collection unit;
- f. transferring the reactor effluent to a heat exchanger in fluid connection with the fines collection unit and cooling the reactor effluent and condensing a portion of the reactor effluent against incoming oxygenate feed to form a mixed phase effluent;
- g. transferring the mixed phase effluent to a separator in fluid connection with the heat exchanger and separating the mixed phase effluent into an aqueous liquid phase, a hydrocarbon gas phase and a hydrocarbon liquid phase;
- h. transferring the hydrocarbon gas phase and the hydrocarbon liquid phase to a de-ethanizer in fluid connection with the separator, wherein C2− light gas is separated from C3+ product;
- i. transferring the C3+ product to a de-butanizer in fluid connection with the de-ethanizer, wherein C3/C4 gases are separated from the C5+ gasoline product;
- and
- j. transferring the C3/C4 gases to an alkylation unit in fluid connection with the de-butanizer, wherein olefins are converted to the C5+ gasoline product.
11 more elements
A process for converting an oxygenate feedstock to a C5+ gasoline product comprising:
- a. heating the oxygenate feedstock;
- b. feeding the oxygenate feedstock to a fluidized bed reactor under conditions to convert the oxygenate feedstock to a hydrocarbon mixture comprising C5+ gasoline product in a reactor effluent, wherein the fluid bed reactor comprises:
- i. a catalyst;
- and
- ii. two packing layers, which separates the fluidized bed reactor into two stages;
- c. cooling the fluidized bed reactor either internally or externally;
- d. transferring the reactor effluent to a set of two stage cyclones in fluid connection with the fluidized bed reactor;
- e. separating reactor vapor from the catalyst in the two stage cyclones;
- f. transferring the reactor effluent to a fines collection unit in fluid connection with the two stage cyclones and removing catalyst fines;
- g. transferring the reactor effluent to a heat exchanger in fluid connection with the fines collection unit and cooling the reactor effluent and condensing a portion of the reactor effluent against incoming oxygenate feed to form a mixed phase effluent;
- h. transferring the mixed phase effluent to a separator in fluid connection with the heat exchanger and separating the mixed phase effluent into an aqueous liquid phase, a hydrocarbon gas phase and a hydrocarbon liquid phase;
- i. transferring the hydrocarbon gas phase and the hydrocarbon liquid phase to a dividing wall column in fluid connection with the separator, wherein seven streams for a light gas, C2, propylene, propane, butenes, butanes and the C5+ gasoline product are divided;
- j. combining the streams for C2, propylene, and butenes to form a recycle stream and, wherein the recycle streams is in fluid connection with the dividing wall column and the fluidized bed reactor;
- k. feeding the recycle stream to the fluidized bed reactor under conditions to convert C2-C4 olefins to the C5+ gasoline product;
- and
- l. combining the streams for propane and butanes to form LPG.
13 more elements
Dependencies are inferred from the claim text.