A linear program for optimizing enhanced weathering networks

College

Gokongwei College of Engineering

Department/Unit

Chemical Engineering

Document Type

Article

Source Title

Results in Engineering

Volume

3

Publication Date

9-1-2019

Abstract

We develop a linear programming (LP) model for optimizing enhanced weathering (EW) networks. EW is a negative emissions technology (NET) that involves mining and grinding of naturally occurring CO2-reactive rocks, and subsequently applying the resulting powder to soil to provide ample surface area for contact with the atmosphere and thus accelerate carbon fixation. Use of EW as a carbon management strategy at scale will result in the need to properly match sources (rock crushing plants) with sinks (application sites); the result is a special case of a supply chain optimization problem. The model proposed here can determine optimal matches of sources and sinks in EW-based CMNs, considering material flow and temporal constraints. A case study is solved to illustrate the model. © 2019

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Digitial Object Identifier (DOI)

10.1016/j.rineng.2019.100028

Disciplines

Chemical Engineering

Keywords

Weathering; Carbon dioxide mitigation

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