Isoprene Production from Isobutylene

Report Abstract

This report presents the economics of Isoprene production from isobutylene (contained in a C4 cut stream) and formaldehyde in the United States via a typical two-step carbonylation process. Initially, isobutylene is reacted with formaldehyde forming 4,4-dimethyl-1,3-metadioxane (4-4 DMD). This intermediate is then cracked, producing Isoprene.

The report provides a comprehensive study of Isoprene production and related Isoprene production cost, covering three key aspects: a complete description of the Isoprene production process examined; an in-depth analysis of the related Isoprene plant capital cost (Capex); and an evaluation of the respective Isoprene plant operating costs (Opex).

The Isoprene production process description includes a block flow diagram (BFD), an overview of the industrial site installations, detailing both the process unit and the necessary infrastructure, process consumption figures and comprehensive process flow diagrams (PFD). The Isoprene plant capital cost analysis breaks down the Capex by plant cost (i.e., ISBL, OSBL and Contingency); owner's cost; working capital; and costs incurred during industrial plant commissioning and start-up. The Isoprene plant operating costs analysis covers operating expenses, including variable costs like raw materials and utilities, and fixed costs such as maintenance, labor, and depreciation.