August 2010

Heat Transfer

Increase crude unit capacity through better integration

In revamp projects, better energy integration provides more benefits with less capital investment and lower operating costs

Amin, M. S., Ibrahim, M. S., Aseeri, A. S., Gulf Advanced Process Technologies (GAP-Tech)

Pinch analysis and process integration techniques are established methods to increase process heat recovery, thereby limiting overall plant energy requirements. Pinch analysis proceeds in two basic steps: 1) targeting possible energy savings, and 2) developing design based on pinch principles to achieve the identified targets. To attain the defined targets, changes to the heat exchanger network (HEN) may be extensive and complicated. Such excessive changes may lead to extremely high costs and hamper the feasibility of the project. In regions where refining profit margins are low, revamp projects requiring very high capital investment cannot be justified. Therefore, minimizing modifications

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