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Value-added chemical

There are, however, numerous appHcations forthcoming ia medium- to small-scale processiag. Especially attractive on this scale is the pharmaceutical fine chemical or high value added chemical synthesis (see Fine chemicals). In these processes multistep reactions are common, and an electroorganic reaction step can aid ia process simplification. Off the shelf lab electrochemical cells, which have scaled-up versions, are also available. The materials of constmction for these cells are compatible with most organic chemicals. [Pg.86]

Apart from the provision of various permutations of (chemical-based) boiler water programs, it is common to find water treatment companies supplying value adding chemicals and services in other boiler plant-related areas where their expertise in applied chemical technology can deliver additional economic benefit. Such areas typically include cleaning services for boiler waterside and fireside and the provision of fuel treatments and combustion additives, dust suppressants (for coal and ash handling), acids, and cleaner products. [Pg.140]

Werpy, T. Peterson, G. (eds) (2004) Top Value-Added Chemicals from Biomass, Vol. 1. Results of Screening of Potential Candidates from Sugars and Synthesis Gas. Pacific Northwest National Laboratory and National Renewable Energy Laboratory, US, August 2004. [Pg.25]

I. T. A. Werpy, G. Peterson, A. Aden, J. Bozell, J. E. Holladay, J. F. White and A. Manheim, Top Value Added Chemicals from Biomass United States Department of Energy report number DOE/GO-102004-1992. [Pg.418]

T. Werpy, G. Peterson et al., Top Value Added Chemicals from Biomass, NREL Report, 2004. [Pg.117]

DOE, Energy, Efficiency and Renewable Energy, Top value added chemicals fi om biomass. Screening for potential candidates from sugars (a) Levulinic acid, pp. 45-48 (b) 3-Hydroxypropionic acid (3-HPA), pp. 29-31 (c) Four-carbon 1,4-diacids, pp. 22-25 (d) Itaconic acid, pp. 42-44 nrel.gov/docs/fy04osti/ 35523.pdf, 67 pp. [Pg.58]

A biorefinery is a facility that integrates biomass conversion processes and eqtrip-ment to produce fuels, power, and value-added chemicals from biomass. Biorefinery is the co-production of a spectram of bio-based products and energy from biomass. The biorefinery concept is analogous to today s crude oil refinery. Biorefinery is a relatively new term referring to the conversion of biomass feedstock into a host of valuable chemicals and energy with minimal waste and emissions. [Pg.67]

Abstract Polyfunctionality of carbohydrates and their low solubility in conventional organic solvents make rather complex their conversion to higher value added chemicals. Therefore, innovative processes are now strongly needed in order to increase the selectivity of these reactions. Here, we report an overview of the different heterogeneously-catalyzed processes described in the literature. In particular, hydrolysis, dehydration, oxidation, esterification, and etherification of carbohydrates are presented. We shall discuss the main structural parameters that need to be controlled and that permit the conversion of carbohydrates to bioproducts with good selectivity. The conversion of monosaccharides and disaccharides over solid catalysts, as well as recent advances in the heterogeneously-catalyzed conversion of cellulose, will be presented. [Pg.63]

Heterogeneous catalysis for production of value-added chemicals from biomass... [Pg.12]

Oxidation as a process to transform biomass into value-added chemicals is a key one. Here, we focus on oxidations using molecular oxygen as the oxidant, with the aim of illustrating selected interesting reactions that could be important in the efforts to develop sustainable chemistry since they only require abundant bio-resources as reactants and have water as the only, or at least the main, byproduct. [Pg.31]

Catalytic hydrogenation represents a set of reactions that will be extremely important in the production of value-added chemicals from biomass. Already now, they play a significant role in today s industry, and holds great promise for further developments. Here, selected examples of heterogeneously catalyzed hydrogenations of chemicals available from renewables resources are presented. [Pg.38]

Top Value Added Chemicals From Biomass—Results of Screening for Potential Candidates from Sugars and Synthesis Gas, eds. T. Werpy and G. Petersen, US Department of Energy, Oak Ridge, TN, August 2004, vol. 1 available at WWW.eere.energy.gov/biomass/pdfs/3 5 523. pdf. [Pg.44]

He L-N, Yang Z-Z, Liu A-H et al (2010) C02 chemistry at Nankai group catalytic conversion of C02 into value-added chemicals. In Advances in C02 conversion and utilization. ACS Symposium Series, vol 1056. American Chemical Society, pp 77-101... [Pg.6]

As an abundant, nontoxic, non-flammable, easily available, and renewable carbon resource, C02 is very attractive as an environmentally friendly feedstock for making commodity chemicals, fuels, and materials [1-7]. In this respect, PEGs-functionalized catalysts have been developed for efficient transformation of C02 into value-added chemicals or fuels such as cyclic carbonates, dimethyl carbonate (DMC), oxazolidinones, organic carbamates and urea derivatives. [Pg.55]

Hence, an alternative concept CCU is proposed to address the energy penalty problem in the CCS process. The essence is to directly use the captured C02 i.e., activated one as a feedstock to synthesize value-added chemicals, getting rid of the desorption step. Very recently, Huang et al. described a strategy of capturing C02 by utilizing imidazolium IL/MEA system and then electrochemical reduction of MEAH+ ion to H2 simultaneously leading to carbamate salts formation (Scheme 6.1) [18]. [Pg.72]

Werpy T, Peterson G (2004) Top value added chemicals from biomass, vol 1 - Results of screening for potential candidates from sugars and synthesis gas. US Department of Energy, Oak Ridge... [Pg.174]

Funding the research on that topic has led to several major studies examining the potential of biomass as feedstock for chemical production. This includes the identification of possible intermediate chemicals, state-of-the-art processes for their production, and their current economic chances. Examples of these studies are the Top Value-Added Chemicals from Biomass [8] and, in Europe, the BREW project [9]. [Pg.88]

Amino acids can be obtained by hydrolysis of proteins, chemical synthesis, fermentation (e.g. of sugars), and enzymatic processes [32], They serve similar purposes as proteins, but in addition, aspartic acid and glutamic acid were rated as top value-added chemicals, which can be converted to further fine chemicals [8]. Another example is the production of building blocks like ethylenediamine and butanediamine from serine and arginine, respectively [6],... [Pg.98]


See other pages where Value-added chemical is mentioned: [Pg.157]    [Pg.444]    [Pg.232]    [Pg.6]    [Pg.272]    [Pg.161]    [Pg.64]    [Pg.72]    [Pg.88]    [Pg.13]    [Pg.13]    [Pg.16]    [Pg.22]    [Pg.43]    [Pg.289]    [Pg.289]    [Pg.218]    [Pg.94]    [Pg.807]    [Pg.807]    [Pg.3]    [Pg.5]    [Pg.55]    [Pg.77]    [Pg.437]    [Pg.67]   
See also in sourсe #XX -- [ Pg.18 , Pg.465 , Pg.568 , Pg.572 ]




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