Linear Alkylbenzene Detal Process

Linear_Alkylbenzene_6035_Layout 1 4/19/13 4:06 PM Page 1

Energy Efficient Plant Designs for Linear Alkylbenzene (LAB) by: UOP LLC, A Honeywell Company: Larry C. Erickson, Stephen W. Sohn and Yuree Yuree K. Whang

Cost reduction improvements are being implemented into the latest LAB plant designs for a significant reduction in energy and capital requirements. Linear Alkylbenzene Sulfonate (LAS) accounts for more than 40% of all surfactants used in household laundry detergents

Solid Bed Alkylation (Detal-Plus) is the alkylation technology of choice for new LAB plants Kerosene

Crude Oil

Refinery

Kerosene (n -Paraffins) -Paraffins)

Fuels

Return Kerosene

LAB Plant

LAS Plant

LAS Based Detergents

UOP MolexTM Process

Hydrogen

UOP -Paraffins PacolTM and -Paraffins DeFineTM Processes

n 

Return Kerosene

Prefractionation and Unionfining

Stripper 

Heavy Alkylate

UOP PEPTM Process

UOP/CEPSA Detal-PlusTM Process

LAB

UOP Molex Process Improvements Molex  Adsorbent  Chambers 

Light Kerosene (C9-) Kerosene

Aromatics

Recycle n -Paraffins -Paraffins

UOP Molex Process

Kerosene Pretreatment Improvements

Benzene

Light Ends

Prefractionation and Unionfining

Benzene

Extract and  Raffinate  Columns 

Rotary  Valve 

Light Kerosene (C9-)

D WC  WC 

R erun  erun 

Kerosene

C10-13

K erosene erosene

Desorbent

C10-13

Raffinate

Heavy Heav y Kerosene (C14+)

Heavy Kerosene Kerosene (C14+)

Extract n-Paraffins Product Feed

• Single Dividing Wall Column (DWC) replaces traditional 2-column unit for reduced capital and utility requirements • Newly developed catalysts result in operation at lower separator pressures

UOP Pacol and Paco DeFine Processes

UOP Pacol Process Improvements • Increased catalyst space velocity reduces the catalyst requirement and the reactor size • Latest DeH-15 catalyst exhibits improved selectivity, reducing the size of the reactor

• Reduced Rotary Valve cycle times increase throughput • The addition of a tertiary fl ush, and reduction in circulation and reflux rates reduce the size of the columns in the unit and the utilities requirements

UOP/CEPSA Detal-Plus Process

UOP Detal-Plus Process Improvements

(CH2)yCH3 H3C(CH2)x

LAB

• New ZDA-2 catalyst allows for significantly reduced benzene circulation rates, which results in reduced vessel sizes and utility requirements • Improved reactor and fractionation column designs also result in reduced vessel sizes and utility requireme requirements nts

• Optimized hydrogen-tohydrocarbon ratio reduces utilities

25% reduction in energy costs and capital costs from latest LAB plant technologies! * 100 KMTA LAB Plant

reduction in energy cost

© 2013 Honeywell International Inc.

6035-1

+

reduction in capital cost

=

improvement in the IRR