Chemistry of hydrocarbon compounds – Saturated compound synthesis – By isomerization
Patent
1992-09-25
1994-03-08
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Saturated compound synthesis
By isomerization
585820, 585826, C07C 513, C07C 712
Patent
active
052929876
ABSTRACT:
Processes are disclosed for the adsorption and isomerization of paraffinic hydrocarbons wherein an absorption cycle is employed that utilizes a non-adsorbable purge gas for regenerating the adsorber beds, which cycle includes adsorption, regeneration and void space purging steps and wherein one of said void space purging steps comprises passing an adsorber feed to the adsorber bed to purge non-adsorbable purge gas from the void space and said step is continued until at least a portion of the non-adsorbed hydrocarbons in the adsorber feed elutes from the void space of the adsorber bed. Processes are further disclosed for sulfur and/or ammonia-containing feeds that employ additional conversion and adsorption zones to prevent the sulfur and/or ammonia compounds from contacting the isomerization catalyst. The products from the processes are useful as motor fuel blending components.
REFERENCES:
patent: 4176053 (1979-11-01), Holcombe
patent: 4210771 (1980-07-01), Holcombe
patent: 4709116 (1987-11-01), Zarchy et al.
patent: 4709117 (1987-11-01), Gray
patent: 4717784 (1988-01-01), Stem et al.
patent: 4831207 (1989-05-01), O'Keefe et al.
Cusher Nelson
Welch Gary J.
Zarchy Andrew S.
McBride Thomas K.
McFarlane Anthony
Phan Nhat
Silverman Richard P.
Tolomei John G.
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