초록 ▼

A process for the removal of carbon dioxide, hydrogen sulfide and alkyl mercaptans from a hydrocarbon-containing feed gas: (a) contacting the feed gas with an adsorbent capable of removing hydrogen sulfide and alkyl mercaptans from the feed gas at effective conditions to produce a treated gas having

A process for the removal of carbon dioxide, hydrogen sulfide and alkyl mercaptans from a hydrocarbon-containing feed gas: (a) contacting the feed gas with an adsorbent capable of removing hydrogen sulfide and alkyl mercaptans from the feed gas at effective conditions to produce a treated gas having reduced concentrations of hydrogen sulfide alkyl mercaptans; (b) contacting the treated gas with a liquid medium capable of removing carbon dioxide hydrogen sulfide and alkyl mercaptans from the treated gas at effective conditions to produce a product gas having reduced concentrations of carbon dioxide hydrogen sulfide and alkyl mercaptans; (c) contacting a spent absorbent laden with hydrogen sulfide and alkyl mercaptans with a normally liquid fraction at effective desorption conditions to produce a regenerated adsorbent and a regeneration effluent having increased concentrations of hydrogen sulfide and alkyl mercaptans; and (d) utilizing the regenerated adsorbent as at least a portion of the adsorbent in step (a).

대표청구항 ▼

A process for the removal of carbon dioxide, hydrogen sulfide and alkyl mercaptans from a feed gas containing hydrocarbons having from 1 to about 8 carbon atoms per molecule comprising: (a) contacting the feed gas with an adsorbent capable of removing hydrogen sulfide and alkyl mercaptans from the f

A process for the removal of carbon dioxide, hydrogen sulfide and alkyl mercaptans from a feed gas containing hydrocarbons having from 1 to about 8 carbon atoms per molecule comprising: (a) contacting the feed gas with an adsorbent capable of removing hydrogen sulfide and alkyl mercaptans from the feed gas at effective conditions to produce a treated gas having reduced concentrations of hydrogen sulfide and alkyl mercaptans relative to the feed gas; (b) contacting the treated gas with a liquid medium capable of removing carbon dioxide, hydrogen sulfide and alkyl mercaptans from the treated gas at effective conditions to produce a product gas having reduced concentrations of carbon dioxide, hydrogen sulfide and alkyl mercaptans relative to the treated gas and an acid gas-rich effluent; (c) separating the product gas into a low boiling fraction and a high boiling fraction, said high boiling fraction comprising at least 50% by weight of hydrocarbons having at least 4 carbon atoms per molecule; (d) contacting a spent adsorbent laden with hydrogen sulfide and alkyl mercaptans with a normally liquid regeneration medium comprising at least a portion of said high boiling fraction at effective desorption conditions to maintain said regeneration medium substantially in the vapor phase and produce a regenerated adsorbent and a regeneration effluent having increased concentrations of hydrogen sulfide and alkyl mercaptans; and (e) utilizing the regenerated adsorbent as at least a portion of the adsorbent in step (a).