Mercaptan removal using microreactors

A method for treating a naphtha boiling range fraction, comprising:

• receiving a hydroprocessed effluent comprising a naphtha boiling range fraction, the naphtha boiling range fraction comprising a sulfur content of about 200 wppm or less and comprising at least about 50 wppm of olefins, mercaptans, or a combination thereof;
• and
• exposing at least a portion of the naphtha boiling range fraction to a hydrotreating catalyst at a temperature of from about 400° F. (204° C.) to about 600° F. (316° C.) to form a treated effluent portion having a sulfur content of about 50 wppm or less, the treated effluent portion having a lower sulfur content than the sulfur content of the naphtha boiling range fraction,
• wherein the hydrotreating catalyst is located on surfaces of walls for a plurality of microreactors, the plurality of microreactors having a length dimension of about 10 μm to about 2 mm and a depth dimension of about 10 μm to about 2 mm, the plurality of microreactors being located in a different vessel from a hydroprocessing reaction stage that generated the naphtha boiling range fraction.