Chapter Six Design Issues III Integrated Plants for ETBE

6.1 ETBE Synthesis Routes

6.1.1 Production Alternatives

6.1.2 ETBE Production in a Conventional MTBE Unit

6.1.2.1 Pretreatment

6.1.2.2 Reaction

6.1.2.3 Purification

6.1.2.4 Recovery System

6.1.3 ETBE Production in a MTBE Unit Reactive Distillation

6.1.4 Conventional ETBE Process Without Ethanol Recycle

6.1.5 Reactive Distillation ETBE Process Without Ethanol Recycle

6.2 Process Selection

6.2.1 Applicability of Reactive Distillation to ETBE Synthesis

6.2.2 Operating Constraints Within a Refinery Environment

6.2.3 Optimal Process for an Isobutene-Rich Feed

6.2.3.1 Conventional Process

6.2.3.2 Reactive Distillation Process

6.2.3.3 Advantages of Reactive Distillation

6.2.3.4 ETBE-Speeific Reactive Distillation Designs

6.2.4 Optimal Process for an Isobutene-Lean Feed

6.2.4.1 Conventional Process

6.2.4.2 Reactive Distillation Process

6.2.4.3 Advantages of Reactive Distillation 6.2.4.3 ETBE-Specific Reactive Distillation Designs

6.2.5 Process Comparison for ETBE Production

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