CO2 Sequestration最新文献

Greenhouse Gas Assessment and Strategies to Achieve CO2 Sequestration in the Brazilian Palm Oil Life Cycle 在巴西棕榈油生命周期中实现二氧化碳封存的温室气体评估和战略

CO2 Sequestration Pub Date : 2020-06-19 DOI: 10.5772/intechopen.92772

L. A. Frazão, Guilherme Silva Raucci, J. L. Carvalho, M. Galdos, C. S. Moreira, C. Cerri, C. Cerri

{"title":"Greenhouse Gas Assessment and Strategies to Achieve CO2 Sequestration in the Brazilian Palm Oil Life Cycle","authors":"L. A. Frazão, Guilherme Silva Raucci, J. L. Carvalho, M. Galdos, C. S. Moreira, C. Cerri, C. Cerri","doi":"10.5772/intechopen.92772","DOIUrl":"https://doi.org/10.5772/intechopen.92772","url":null,"abstract":"As the palm oil production is expanding in Brazilian Amazon region, this study aimed to determinate the greenhouse gas (GHG) emissions since the agricultural phase to transportation of crude palm oil (CPO) and then indicate strategies to achieve the CO 2 sequestration. The scope of this study comprised since the stage of oil palm seedlings production until the transportation of CPO. Inventory data for the year of 2009 included the agricultural production of fresh fruit bunches (FFB) and the extraction and transportation of CPO. The management of palm oil mill effluent (POME), use of fertilizers, fuels, pesticides, and electricity contributed to 66.5, 17.9, 15.1, 0.4, and 0.1% of the total emissions, respectively. Agricultural phase, CPO extraction, and transportation emitted 32,131, 79,590, and 1,104 t CO 2 -eq, respectively. The carbon (C) footprint was 0.79 t CO 2 -eq / t CPO, and the highest GHG emissions were associated to the management of POME. On the other hand, the use of all residues from the mill as fertilizer substitute can minimize the GHG emissions and increase soil C stocks. In addition, the methane (CH 4 ) from POME captured and used for steam or electricity is also a viable alternative to reduce the GHG emissions.","PeriodicalId":356509,"journal":{"name":"CO2 Sequestration","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128353764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Soil Carbon Sequestration through Agronomic Management Practices 通过农艺管理实践实现土壤碳固存

CO2 Sequestration Pub Date : 2019-10-11 DOI: 10.5772/intechopen.87107

S. K. Tanveer, Xingli Lu, Shamim-ul-Sibtain Shah, I. Hussain, Muhammad Sohail

引用次数: 7

Experimental Study of Adsorption on Activated Carbon for CO2 Capture 活性炭吸附CO2捕集的实验研究

CO2 Sequestration Pub Date : 2019-09-17 DOI: 10.5772/intechopen.85834

H. Ibrahim, M. Al-Meshragi

{"title":"Experimental Study of Adsorption on Activated Carbon for CO2 Capture","authors":"H. Ibrahim, M. Al-Meshragi","doi":"10.5772/intechopen.85834","DOIUrl":"https://doi.org/10.5772/intechopen.85834","url":null,"abstract":"The adsorption of carbon dioxide (CO 2 ) on activated carbon (AC) prepared from olive trees has been investigated by using a fixed bed adsorption apparatus. The adsorption equilibrium and breakthrough curves were determined at different temperatures 30, 50, 70, and 90°C in order to investigate both kinetic and thermodynamic parameters. Maximum CO 2 sorption capacity on AC ranged from 109.5 to 35.46 and from 129.65 to 35.55 mg CO 2 /g of AC for initial concentrations 10 and 13.725% vol., respectively. Different isotherm models are applied to mathematically model the CO 2 adsorption, and on the basis of the estimated adsorption capacity by model and determination coefficient (r 2 ), the Langmuir model provides a perfect fit to the experimental data owing to closeness of the r 2 to unity. From the correlation coefficient, it is found that the pseudo-second-order model is well-fitted with the experimental data. In addition, it indicates that CO 2 adsorption is a physical adsorption process and demonstrates a behavior of an exothermic reaction, which is consistent with the thermodynamic analysis. The results obtained in this study conclude that AC prepared from olive trees can be considered as adequate for designing a fixed bed cycle to separate carbon dioxide from flue gases and serve as a benchmark while searching for inexpensive and superior activated carbon production in future studies.","PeriodicalId":356509,"journal":{"name":"CO2 Sequestration","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132603252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Leaf Litter Decomposition and Mitigation of CO2 Emissions in Cocoa Ecosystems 可可生态系统凋落叶分解与二氧化碳排放减缓

CO2 Sequestration Pub Date : 2019-08-01 DOI: 10.5772/INTECHOPEN.86520

A. Mohammed, J. S. Robinson, D. Midmore, A. Verhoef

{"title":"Leaf Litter Decomposition and Mitigation of CO2 Emissions in Cocoa Ecosystems","authors":"A. Mohammed, J. S. Robinson, D. Midmore, A. Verhoef","doi":"10.5772/INTECHOPEN.86520","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.86520","url":null,"abstract":"Studies simultaneously quantifying litter weight losses and rates of CO2-C evolved are few, though essential for accurate estimates of forest carbon budgets. A 120-day dry matter loss and a 130-day carbon emission experiments were concurrently conducted at the soil laboratory of the University of Reading, UK. Leaf litters of tree species comprising cocoa (Theobroma cacao), Newbouldia laevis (dominant shade tree in Eastern region (ER)) and Persea americana (dominant shade tree in Western region (WR)) of Ghana were incubated using a single tree leaf litter and/or a 1:1 mixed species leaf litters to determine and predict the litter decomposition and C dynamics in cocoa systems with or without the shade trees. Decomposition and C release trends in the ER systems followed: shade > mixed cocoa-shade = predicted mixed litter > cocoa; and in the WR, the order was: cocoa = mixed cocoa-shade > predicted mixed > shade. Differences between released C estimated from litter weight loss and CO2-C evolution measurement methods were not consistent. Regression analysis revealed a strong (R2 = 0.71) relationship between loss of litter C and the CO2-C evolution during litter decomposition. The large C pool for shaded cocoa systems indicates the potential to store more C and thus, its promotion could play a significant role in atmospheric CO2 mitigations.","PeriodicalId":356509,"journal":{"name":"CO2 Sequestration","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127854352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Strategic Management of Grazing Grassland Systems to Maintain and Increase Organic Carbon in Soils 放牧草地系统维持和增加土壤有机碳的战略管理

CO2 Sequestration Pub Date : 2019-03-13 DOI: 10.5772/INTECHOPEN.84341

I. Khalil, R. Francaviglia, B. Henry

{"title":"Strategic Management of Grazing Grassland Systems to Maintain and Increase Organic Carbon in Soils","authors":"I. Khalil, R. Francaviglia, B. Henry","doi":"10.5772/INTECHOPEN.84341","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.84341","url":null,"abstract":"Understanding management-induced C sequestration potential in soils under agriculture, forestry, and other land use systems and their quantification to offset increasing greenhouse gases are of global concern. This chapter reviews management-induced changes in C storage in soils of grazing grassland systems, their impacts on ecosystem functions, and their adaptability and needs of protection across socio-economic and cultural settings. In general, improved management of grassland/pasture such as manuring/slurry application, liming and rotational grazing, and low to medium livestock units could sequester C more than under high intensity grazing conditions. Converting cultivated land to pasture, restoration of degraded land, and maximizing pasture phases in mixed-cropping, pasture with mixed-livestock, integrated forestry-pasturage of livestock (silvopastoral) and crop-forestry-pasturage of livestock (agro-silvopastoral) systems could also maintain and enhance soil organic C density (SOC ρ ). In areas receiving low precipitation and having high erodibility, grazing exclusion might restore degraded grasslands and increase SOC ρ . Yet, optimizing C sequestration rates, sowing of more productive grass varieties, judicial inorganic and organic fertilization, rotational grazing, and other climate-resilient approaches could improve overall farm productivity and profitability and attain sustainability in livestock farming systems.","PeriodicalId":356509,"journal":{"name":"CO2 Sequestration","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130488587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Landuse and Physiographic Region Effects on Soil Carbon and Nitrogen Sequestration in Arkansas 阿肯色州土地利用和地理区域对土壤碳氮固存的影响

CO2 Sequestration Pub Date : 2019-01-30 DOI: 10.5772/INTECHOPEN.83783

Marya McKee, K. Brye, L. Wood

引用次数: 1