Optimization of enhanced weathering networks with alternative transportation modes  

作　　者：Raymond R.Tan Beatriz A.Belmonte Michael Francis D.Benjamin Viknesh Andiappan Kathleen B.Aviso 

机构地区：[1]Department of Chemical Engineering,De La Salle University,2401 Taft Avenue,0922 Manila,Philippines [2]Research Center for the Natural and Applied Sciences/Department of Chemical Engineering,University of Santo Tomas,Espana Blvd.,1015 Manila,Philippines [3]School of Engineering and Physical Sciences,Heriot-Watt University Malaysia,62200,Putrajaya,Wilayah Persekutuan Putrajaya,Malaysia [4]Faculty of Engineering,Computing and Science,Swinburne University of Technology,Jalan Simpang Tiga,93350,Kuching,Sarawak,Malaysia

出　　处：《Carbon Resources Conversion》2022年第2期167-176,共10页碳资源转化（英文）

摘　　要：Enhanced weathering of alkaline rocks and minerals is a negative emissions technology (NET) that is potentiallyscalable to deliver gigaton-level carbon dioxide removal (CDR) for climate change mitigation. This techniquerelies on the acceleration of naturally occurring weathering reactions with water and carbon dioxide by reducingthese substances into a fine powder with high specific surface area. The ex situ enhanced weathering processchain consists of the acquisition of suitable natural or synthetic materials, grinding to a fine particle size,transportation, and application on suitable sites. Future enhanced weathering systems can be envisioned assupply chain-like networks which have to be optimized to deliver maximum CDR given physical constraints.There is a notable research gap in the literature on decision support for such systems. To address this gap, amixed integer linear programming (MILP) model is developed in this work to optimize enhanced weatheringnetworks for CDR. The model also incorporates the availability of multiple transportation options and constraintson network topology. Two test cases are used to demonstrate the model capability to determine optimal andnear-optimal networks. The top ten solutions in these two scenarios yield total CDR levels of 3.4316–3.4363 Mtand 15.27017–15.27960 Mt.

关 键 词：Process integration OPTIMIZATION Mathematical programming Carbon drawdown Carbon management network Decarbonization 

分 类 号：TN9[电子电信—信息与通信工程]