Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
  • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
  • C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
  • C07C2/66—Catalytic processes

Definitions

• Effluent passes out of the reactor through heat exchanger 13 and then to flash drum 20 in which the light ends are separated from the product.
• the alkylaromatic product passes out of flash drum 20 through line 22 to the fractionator 25 to provide the final stabilized gasoline blend component in line 26 with reboil loop 28 providing column heat; light ends from the fractionator pass out through line 27 from reflux loop 29.
• the catalyst used in the guard bed will normally be the same catalyst used in the alkylation reactor as a matter of operating convenience but this is not required: if desired another catalyst or sorbent to remove contaminants from the feed may used, typically a cheaper guard bed sorbent, e.g. a used catalyst from another process or a sorbent such as alumina.
• a cheaper guard bed sorbent e.g. a used catalyst from another process or a sorbent such as alumina.
• the objective of the guard bed is to remove the contaminants from the feed before the feed comes to the reaction catalyst and provided that this is achieved, there is wide variety of choice as to guard bed catalysts and conditions useful to this end.
• Reformate streams will typically come from a fixed bed, swing bed or moving bed reformer.
• the most useful reformate fraction is a heart-cut reformate.
• This fraction is a complex mixture of hydrocarbons recovered as the overhead of a dehexanizer column downstream from a depentanizer column.
• the composition will vary over a range depending upon a number of factors including the severity of operation in the reformer and the composition of the reformer feed.
• These streams will usually have the C 5 , C 4 and lower hydrocarbons removed in the depentanizer and debutanizer. Therefore, usually, the heart-cut reformate will contain at least 70 wt. % C 6 hydrocarbons, and preferably at least 90 wt. % C 6 hydrocarbons.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
• Catalysts (AREA)

Priority Applications (4)

Applications Claiming Priority (4)

Publications (2)

Family

ID=36941752

Family Applications (1)

Country Status (6)

Cited By (4)

Families Citing this family (1)

Family Cites Families (13)

• 2006
  • 2006-02-28 JP JP2007558156A patent/JP2008535941A/ja active Pending
  • 2006-02-28 EP EP06736481.0A patent/EP1856012B1/en not_active Not-in-force
  • 2006-02-28 CA CA2599503A patent/CA2599503C/en not_active Expired - Fee Related
  • 2006-02-28 BR BRPI0607069-8A patent/BRPI0607069B1/pt not_active IP Right Cessation
  • 2006-02-28 RU RU2007134092/04A patent/RU2404949C2/ru not_active IP Right Cessation
  • 2006-02-28 WO PCT/US2006/007170 patent/WO2006094008A2/en not_active Ceased

Non-Patent Citations (2)

Also Published As

Similar Documents

Legal Events