• Title/Summary/Keyword: world of plants

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Economic analysis of biomass torrefaction plants integrated with corn ethanol plants and coal-fired power plants

  • Tiffany, Douglas G.;Lee, Won Fy;Morey, Vance;Kaliyan, Nalladurai
    • Advances in Energy Research
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    • v.1 no.2
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    • pp.127-146
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    • 2013

  • Torrefaction technologies convert assorted biomass feedstocks into energy-concentrated, carbon neutral fuel that is economically transported and easily ground for blending with fossil coals at numerous power plants around the world without needs to retrofit. Utilization of torrefied biomass in conventional electric generating units may be an increasingly attractive alternative for electricity generation as aging power plants in the world need to be upgraded or improved. This paper examines the economic feasibility of torrefaction in different scenarios by modeling torrefaction plants producing 136,078 t/year (150,000 ton/year) biocoal from wood and corn stover. The utilization of biocoal blends in existing coal-fired power plants is modeled to determine the demand for this fuel in the context of emerging policies regulating emissions from coal in the U.S. setting. Opportunities to co-locate torrefaction facilities adjacent to corn ethanol plants and coal-fired power plants are explored as means to improve economics for collaborating businesses. Life cycle analysis was conducted in parallel to this economic study and was used to determine environmental impacts of converting biomass to biocoal for blending in coal-fired power plants as well as the use of substantial flows of off-gasses produced in the torrefaction process. Sensitivity analysis of the financial rates of return of the different businesses has been performed to measure impacts of different factors, whether input prices, output prices, or policy measures that render costs or rewards for the businesses.

  • https://doi.org/10.12989/eri.2013.1.2.127 인용

Medicinal Plants Combating Against Cancer - a Green Anticancer Approach

  • Sultana, Sabira;Asif, Hafiz Muhammad;Nazar, Hafiz Muhammad Irfan;Akhtar, Naveed;Rehman, Jalil Ur.;Rehman, Riaz Ur.
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.11
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    • pp.4385-4394
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    • 2014

  • Cancer is the most deadly disease that causes the serious health problems, physical disabilities, mortalities, and morbidities around the world. It is the second leading cause of death all over the world. Although great advancement have been made in the treatment of cancer progression, still significant deficiencies and room for improvement remain. Chemotherapy produced a number of undesired and toxic side effects. Natural therapies, such as the use of plant-derived products in the treatment of cancer, may reduce adverse and toxic side effects. However, many plants exist that have shown very promising anticancer activities in vitro and in vivo but their active anticancer principle have yet to be evaluated. Combined efforts of botanist, pharmacologist and chemists are required to find new lead anticancer constituent to fight disease. This review will help researchers in the finding of new bioactive molecules as it will focus on various plants evaluated for anticancer properties in vitro and in vivo.

  • https://doi.org/10.7314/APJCP.2014.15.11.4385 인용 PDF KSCI