Environmental concern-based site screening of carbon dioxide geological storage in China

Abstract

Environmental impacts and risks related to carbon dioxide (CO2) capture and storage (CCS) projects may have direct effects on the decision-making process during CCS site selection. This paper proposes a novel method of environmental optimization for CCS site selection using China’s ecological red line approach. Moreover, this paper established a GIS based spatial analysis model of environmental optimization during CCS site selection by a large database. The comprehensive data coverage of environmental elements and fine 1 km spatial resolution were used in the database. The quartile method was used for value assignment for specific indicators including the prohibited index and restricted index. The screening results show that areas classified as having high environmental suitability (classes III and IV) in China account for 620,800 km2 and 156,600 km2, respectively, and are mainly distributed in Inner Mongolia, Qinghai and Xinjiang. The environmental suitability class IV areas of Bayingol Mongolian Autonomous Prefecture, Hotan Prefecture, Aksu Prefecture, Hulunbuir, Xilingol League and other prefecture-level regions not only cover large land areas, but also form a continuous area in the three provincial-level administrative units. This study may benefit the national macro-strategic deployment and implementation of CCS spatial layout and environmental management in China.

Recent developments and consideration issues in solid adsorbents for CO2 capture from flue gas

“…They concluded that the low doses of pyridine doping can trigger neutral reaction with the Brønsted acid sites and give hydrolytic stability. However, excess of pyridine could convert all of the remaining B [3] in COF-5/-10 to Lewis B [4] and cause the total and irreversible structural decomposition of the two materials. High dose of pyridine modification brings about a decrease in the gas capture performance, despite it enhances the hydrolytic stability to small extent.…”

“…Faced with such severe reality, the reduction of CO 2 concentration in atmosphere becomes a global concern. Carbon capture and storage (CCS) is a promising technique for significant reduction of CO 2 emission from large point sources [3,4]. CO 2 capture needs about three quarters of the total cost for the CCS system [5].…”

Inside‐and‐Out Semiconductor Engineering for CO2 Photoreduction: From Recent Advances to New Trends

“…Global warming has become an increasingly serious environmental concern because of the excessive emission of carbon dioxide in human activities. [ 1–3 ] In addition to CO 2 capture technology for geological sequestration, [ 4–6 ] solar‐driven CO 2 conversion into chemical fuels is promising, which not only reduces the amount of CO 2 in the atmosphere, but also achieves carbon‐neutral cycling. [ 7–11 ] Inspired from photosynthesis in nature, the researchers have devoted themselves to the studies of photocatalytic CO 2 reduction by directly using solar energy.…”

Comparing causal techniques for rainfall variability analysis using causality algorithms in Iran

“…This method determined a GIS-based spatial modeling of climatic variables using geostatistical techniques as GIS algorithms. The GIS algorithms were also used in the GIS tools in Iran to predict the climatic effect variability (CEV) based on several synthetic maps of the effect spatial variability of climatic variables such as that of Cai et al. (2017) .…”