Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1990-10-23
1992-04-28
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
208310R, 208310Z, 585823, 585824, 585826, 585827, C07C 712
Patent
active
051091399
ABSTRACT:
A process for purifying linear paraffins in which a hydrocarbon stream containing linear paraffins contaminated with aromatics, sulfur-, nitrogen-, and oxygen-containing compounds, and color bodies, but essentially free of olefins, is contacted with a solid absorbent such as a NaX zeolite or zeolite MgY. After adsorption the adsorbent is desorbed with an alkyl- substituted aromatic desorbent, such as tuluene. The initial effluent from the adsorb cycle, which will contain a high concentration of residual desorbent, is recycled to a desorbent recovery system. The level of desorbent in the adsorber effluent is monitored on a real time basis until the desorbent level of the adsorber effluent declines from a plateau level, i.e., a 100% plateau level, that correlates with the level of impurities, particularly the aromatic impurities in the feed, which is an indication of aromatics breakthrough, thereby signaling the need to switch the adsorbent beds.
REFERENCES:
patent: 2881862 (1959-04-01), Fleck et al.
patent: 2950336 (1960-08-01), Kimberlin, Jr. et al.
patent: 2978407 (1961-04-01), Tuttle et al.
patent: 3063934 (1962-11-01), Epperly et al.
patent: 3182014 (1965-05-01), Seelig et al.
patent: 3228995 (1966-01-01), Epperly et al.
patent: 3278422 (1966-10-01), Epperly et al.
patent: 3393149 (1968-07-01), Conley et al.
patent: 3558732 (1971-01-01), Neuzil et al.
patent: 4313014 (1982-01-01), Kondo et al;
patent: 4337156 (1982-06-01), Derosset
patent: 4567312 (1986-01-01), Miller et al.
patent: 4567315 (1986-01-01), Owaysi et al.
patent: 4571441 (1986-02-01), Miwa et al.
patent: 4795545 (1989-01-01), Schmidt
Becker Christopher L.
Dickson Charles T.
Fitzke Janet R.
Davis Curtis R.
Diemler William C.
Exxon Chemical Patents Inc.
Russell Linda K.
LandOfFree
Process control of process for purification of linear paraffins 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 control of process for purification of linear paraffins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process control of process for purification of linear paraffins will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1250759