Integrated stabilizer in deisobutanizer for isomerization of hydrocarbons and product separation

A method for isomerization of n-butane comprises comprising:

• feeding an n-butane-rich fraction is a feed to the a deisobutanizer column containing an integrated stabilizer;
• a reactor effluent is a feed to a deisobutanizer column containing stabilizer;
• delivering a first portion of a bottoms stream of the deisobutanizer column delivers its bottoms a portion to a reboiler;
• and another mixing a second portion after mixing with hydrogen is routed of the bottoms stream of the deisobutanizer column with hydrogen to form a mixture and delivering the mixture to an isomerization reactor;
• to an routing a reaction effluent from the isomerization reactor and the reactor effluent is returned to the integrated stabilizer;
• in the deisobutanizer column,
• the stabilizer integrated with column of the deisobutanizer column;
• wherein, the stabilizer has an overhead light hydrocarbons that is comprising C1-C3 hydrocarbons and hydrogen;
• and
• withdrawing from the deisobutanizer column has an overhead product withdrawn from the column and/or stabilizer that is isomerate stream that is the product comprising an iso-butane product stream.

An isomerization and fractionation method for n-paraffin's comprising:

• a catalytic distillation column receives feed feeding a feed comprising n-paraffins, to a catalytic distillation column, wherein the catalytic distillation column comprises an integrated stabilizer;
• which catalytic distillation column delivers its bottoms a portion delivering a first portion of a bottoms stream of the catalytic distillation column to a reboiler, and another wherein a second portion is of the bottoms stream of the catalytic distillation column comprises a heavy isomerate;
• a stabilizer which is integrated with the column, separating lighter hydrocarbons from an overhead stream used as a reflux after separating the lighter hydrocarbons through of the integrated stabilizer via a low pressure separator and to yield a remaining overhead stream of the integrated stabilizer, and using the remaining overhead stream of the integrated stabilizer as reflux to the integrated stabilizer;
• reboiling using a reboiler and then recycling a portion of the bottoms stream of the integrated stabilizer, containing wherein the bottoms stream of the integrated stabilizer comprises an isomerate rich product stream, a portion is recycled to stabilizer after reboiling through reboiler;
• the column routing an overhead effluent is routed of the catalytic distillation column to a high pressure separator, which splits the to separate hydrocarbons and effluent hydrogen, where and directing the hydrocarbons are routed to the integrated stabilizer in a top portion of the column, which is integrated with top of the deisobutanizer column catalytic distillation column;
• and
• the column has a side-draw product that is withdrawing an isomerate;
• product stream from the catalytic distillation column
• where the stabilizer separates the reactor effluent into product streams comprising:
• an isomerate product stream, and
• a light hydrocarbon stream.