Article

Life Cycle Investigation of CO 2 Recovery and Sequestration

Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore.
Environmental Science and Technology (Impact Factor: 5.33). 07/2006; 40(12):4016-24. DOI: 10.1021/es051882a
Source: PubMed

ABSTRACT

The Life Cycle Assessment of four CO2 recoverytechnologies, combined with nine CO2 sequestration systems, serves to expand the debate of CO2 mitigation methods beyond a single issue-prevention of global warming-to a wider range of environmental concerns: resource depletion, acidic and toxic gases, wastes, etc, so that the overall, and unexpected, environmental impacts may be revealed.

Download full-text

Full-text

Available from: Hsien H. Khoo, Jul 11, 2014
  • Source
    • "A review of CCS life cycle assessments found that reference distances for pipeline transportation of CO 2 ranged from 50 to 500 km (Corsten et al., 2013). While distances upward of 500 km have been reported for Norwegian projects directing CO 2 to oil and gas fields for enhanced recovery (Khoo and Tan, 2006), it is unlikely that the storage of CO 2 in saline aquifers would warrant such distances since there is no monetary incentive. Hasan et al. (2014) used an upper bound of 200 miles (322 km) in their supply chain network optimization model of CO 2 utilization options , including enhanced oil recovery, arguing that pipeline lengths greater than this were unlikely to be a part of the most economical supply chains in the United States. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Implementation of carbon capture and sequestration (CCS) will increase water demand due to the cooling water requirements of CO2 capture equipment. If the captured CO2 is injected into saline aquifers for sequestration, brine may be extracted to manage the aquifer pressure, and can be desalinated to provide additional freshwater supply. We conduct a geospatial analysis to determine how CCS may affect local water supply and demand across the contiguous United States. We calculate baseline indices for each county in the year 2005, and project future water supply and demand with and without CCS through 2030. We conduct sensitivity analyses to identify the system parameters that most significantly affect water balance. Water supply changes due to inter-annual variability and projected climate change are overwhelmingly the most significant sources of variation. CCS can have strong local effects on water supply and demand, but overall it has a modest effect on water balances.
    Full-text · Article · Jan 2016 · Environmental Modelling and Software
    • "Thermal energy duty is generally avoided. Furthermore, a relatively low environmental impact has been predicted in the literature (Khoo and Tan, 2006). The technology can be adopted for several industrial applications, including CCS (Abanades et al., 2015; Ebner and Ritter, 2009), and an extensive literature can be found regarding processes (Reynolds et al., 2006) and materials "
    [Show abstract] [Hide abstract]
    ABSTRACT: The main goal of this paper is to provide a comprehensive overview on the performance of an integrated gasification combined cycle (IGCC) implementing CO2 capture through a pressure swing adsorption (PSA) process. The methodology for integrating a PSA process into the IGCC plant is first defined and then a full-plant model is developed. A reference case is outlined both for the PSA-based plant and for an absorption-based plant. Physical absorption is considered the benchmark technology for the application investigated. The full-plant model allowed an assessment of the potentials of PSA in this framework. The plant performance obtained was evaluated mainly in terms of energy penalty and CO2 capture efficiency. Several process configurations and operating conditions were tested. The results of these simulations demonstrated the influence of the PSA process on the overall performance and the possibility to shape it according to specific requirements. A sensitivity analysis on the adsorbent material was also carried out, aiming to establish the possible performance enhancements connected to advancements in the material. Improving the properties of the adsorbent demonstrated to have a strong impact not only on the CO2 separation process but also on the performance of the entire plant. However, nor modifications in the process or in the material were able to fully close the gap with absorption. In this sense a synergetic approach for addressing further performance enhancements is outlined, based on the close collaboration between process engineering and material science.
    No preview · Article · Dec 2015 · International Journal of Greenhouse Gas Control
  • Source
    • "A 2010 base scenario is also included for comparison (García-Gusano et al., 2013). Similar LCA studies have already been undertaken for power plants with CCS technology, both for gas and coal (Brekke et al., 2012; Khoo and Tan, 2006a, 2006b; Koornneef et al., 2008; Korre et al., 2009, 2012; Odeh and Cockerill, 2008; Singh et al., 2011; Stanley and Dávila-Serrano, 2012; Strazza et al., 2012; Veltman et al., 2010), but there is a lack of environmental studies to explore CCS in cement production. Exceptionally, Volkart et al. (2013) detail the impacts of applying CCS on a cement plant in 2025 using ReCiPe midpoint method. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Although cement production is a very energy-intensive industry which releases huge amounts of pollutants to the environment, there is a lack of environmental studies focused on applying CO2 capture technologies to mitigate global warming in this industry. Furthermore, other environmental and human health impacts are omitted or underestimated. This paper carries out a detailed Life Cycle Assessment of the Spanish cement production in order to analyse the effect of applying post-combustion CO2 capture technology using monoethanolamine as absorbent. Moreover, the work discusses the pros and cons of CO2 capture within the cement manufacture from an environmental point of view. On the basis of the International Reference Life Cycle Data System (ILCD) 2011 midpoint method, results show improvements in global warming, ozone depletion and abiotic depletion potentials but acidification, photochemical ozone formation, eutrophication, human toxicities, ionising radiation, particulate matter, ecotoxicity, and land use potentials are increased by several times. Besides, the paper shows the decisive contribution of the cogeneration plant required to produce heat. It is necessary to carry out more research concerning how to face the energy penalty. Authors strongly recommend exploring natural gas or biomass CHP plants implementation as well as synergies between cement facilities and power plants.
    Full-text · Article · Oct 2015 · Journal of Cleaner Production
Show more