Evaluation of CO2 Fixation by Enhanced Weathering

User Benefits

- The inorganic carbon (IC) content analysis with TOC solid sample measurement system enables the quantitation of CO₂ fixed as carbonate in rock easily. - The measurement requires just 6 to 8 minutes per sample. - Measure sample quantities up to 1 g to minimize effects from uneven distribution within samples.

Introduction

Achieving carbon-neutrality will require implementing a wide variety of CO₂ emission reduction measures. As part of such efforts, negative emissions technologies (NETs) for absorbing CO₂ gas emissions are being researched. NETs achieve net- negative CO₂ emissions by using direct air capture (DAC), biological functions, or other technologies to capture, absorb, fix, and store CO₂ gas. An example of NETs is the research on enhanced weathering that absorbs CO₂ gas from the atmosphere by grinding mineral ore or other rock material into powder to increase its surface area and then artificially inducing the weathering process to convert CO₂ gas into carbonate. In order to evaluate such enhanced weathering technology, the quantity of CO₂ absorbed by conversion to carbonate by the rock or other material must be quantitated. This article describes using TOC solid sample measurement system to determine the quantity of CO₂ of carbonate, a component of rock, by measuring the quantity of inorganic carbon (IC).

21 de junio de 2023 GMT