• Author / Uploaded
• Anusha Rajagopalan

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Cumene

Overview

Advantages

The CDCumene® process, marketed by ABB, produces ultra high purity cumene using a proprietary zeolite catalyst that is non-corrosive and environmentally friendly. The CDCumene technology is one of a family of process technologies developed

and commercialized by Catalytic Distillation Technologies (CDTECH®) for license to the petroleum refining and petrochemical industries. CDTECH is a partnership between ABB Lummus Global and Chemical Research and Licensing.

Process Features

Client Benefits

Catalytic distillation structures provide efficient vapor liquid contacting, and combine reaction and fractionation in a single unit operation

High selectivity and lowered by-product formation high product purity without drag benzene high product quality (ultra low bromine index) without clay treatment high product yield reduced plot area ■

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Proprietary zeolite catalyst

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Meets evolving environmental requirements continuous operation transalkylation capability maximizes yield eliminates corrosive acidic effluents and associated disposal problems lower maintenance costs ■

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Controlled low and constant alkylation temperature

Extends reactor run lengths (over one year without regeneration) sustains high conversion and selectivity

Simple, low pressure operation

Decreases capital investment improves safety and operability applicable to conversion of existing cumene plants

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Improved heat integration and heat recovery

Reduces utilities and operating costs recovers all waste heat and heat of reaction ■

Adaptable to processing chemical and refinery grade propylene feedstocks

Performance Characteristics

Cumene Product Quality

Typical Overall Material Balance MT/MT Feeds Cumene Product Propylene (100% basis) 0.352 Benzene (100% basis) 0.652 Products Cumene Heavy residue Propane

1.000 0.004 *

* Varies with purity of propylene feed

1 of 2

Improves economics – plants can be customdesigned to process specific feedstocks, including the less expensive feedstocks

Purity

99.97 wt %

Specific gravity 20°/20°C

0.864

Distillation range including 152.5°C

< 1°C

Bromine index