Description: technologyComment of acetaldehyde oxidation (RER, RoW): Oxidation of acetaldehyde technologyComment of acetic acid production, product in 98% solution state (RER, RoW): The process represents the Celanese process (which is an optimized version of the Monsanto process) in which methanol reacts with carbon monoxide under the influence of a rhodium catalyst. It is assumed that 50% of the off-gas is burned as fuel, thus VOC emissions are reduced and CO2 is higher. References: Le Berre, C., Serp, P., Kalck, P. and Torrence, G. P. 2014. Acetic Acid. Ullmann's Encyclopedia of Industrial Chemistry. technologyComment of oxidation of butane (RoW): Oxidation of butane technologyComment of oxidation of butane (RER): The liquid-phase oxidation of hydrocarbons is an important process to produce acetic acid, formic acid or methyl acetate. About 43 kg of formic acid is produced per ton of acetic acid. Unreacted hydrocarbons, volatile neutral constituents, and water are separated first from the oxidation product. Formic acid is separated in the next column; azeotropic distillation is generally used for this purpose. The formic acid contains about 2 wt % acetic acid, 5 wt % water, and 3 wt % benzene. Formic acid with a content of about 98 wt % can be produced by further distillation. Reference: Gräfje, H., Körnig, W., Weitz, H.-M., Reiß, W.: Butanediols, Butenediol, and Butynediol, Chapter 1. In: Ullmann's Encyclopedia of Industrial Chemistry, Sev-enth Edition, 2004 Electronic Release (ed. Fiedler E., Grossmann G., Kersebohm D., Weiss G. and Witte C.). 7 th Electronic Release Edition. WileyInterScience, New York, Online-Version under: http://www.mrw.interscience.wiley.com/ueic/articles/a04_455/frame.html
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Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This is the market for 'acetic acid, without water, in 98% solution state', in the Global geography. Transport from producers to consumers of this product in the geography covered by the market is included. 'acetic acid, without water, in 98% solution state' is an organic substance with a CAS no. : 000064-19-7. It is called 'acetic acid' under IUPAC naming and its molecular formula is: C2H4O2. It is liquid under normal conditions of temperature and pressure and may have a pungent odour. This dataset represents a pure substance (100% active substance). Industrially, this product is mostly used in 98% solution state. Modelling this substance in a solution requires the user to add the water and/or solvent in their models. On a consumer level, is used in the following products: coating products, washing & cleaning products, air care products, lubricants and greases, fillers, putties, plasters, modelling clay, anti-freeze products, fertilisers, plant protection products and finger paints. On industrial sites, the substance is used for the manufacture of products in the following sectors: laboratory chemicals, oil and gas exploration or production products, washing & cleaning products, water treatment chemicals, polymers, coating products and pH regulators and water treatment products. This market is supplied by the following activities with the given share: acetaldehyde oxidation, RER: 0.00441814592714314 acetic acid production, product in 98% solution state, RER: 0.166656885550268 oxidation of butane, RER: 0.0288871934953798 acetaldehyde oxidation, RoW: 0.0200835506519559 acetic acid production, product in 98% solution state, RoW: 0.666627542201071 oxidation of butane, RoW: 0.113326682174182 generalComment of acetaldehyde oxidation (RER, RoW): The multioutput-process "acetaldehyde oxidation process" delivers the co-products acetic anhydride from acetyaldehyde and acetic acid from acetaldehyde. The allocation is based on mass balance. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.] generalComment of acetic acid production, product in 98% solution state (RER, RoW): This dataset represents the production of acetic acid using the Celanese process. Acetic acid (CH3COOH) is a clear, colorless, corrosive liquid that has a pungent vinegar-like odor. It is found in dilute solutions in many plant and animal systems. Vinegar (4–12% acetic acid solutions produced by the fermentation of wines) has been known for more than 5000 years. Acetic acid is mainly used for the production of vinyl acetate and acetic anhydride. In the Celanese process (which was developed based on the Monsanto process), acetic acid is produced by carbonylation of methanol, using rhodium as catalyst (Le Berre et al. 2014). This dataset is based on theoretical data from process analysis as well as estimations based on data from a large chemical factory (Gendorf 2016). References: Althaus H.-J., Chudacoff M., Hischier R., Jungbluth N., Osses M. and Primas A. (2007) Life Cycle Inventories of Chemicals. ecoinvent report No. 8, v2.0. EMPA Dübendorf, Swiss Centre for Life Cycle Inventories, Dübendorf, CH. Le Berre, C., Serp, P., Kalck, P. and Torrence, G. P. 2014. Acetic Acid. Ullmann's Encyclopedia of Industrial Chemistry. Gendorf (2016) Umwelterklärung 2015, Werk Gendorf Industriepark, www.gendorf.de. generalComment of oxidation of butane (RoW): The multioutput-process "formic acid production, butane oxidation process" delivers the co-products formic acid, methyl acetate, ethyl acetate, acetic acid, methyl ethyl ketone, and acetone. The allocation is based on mass balance. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.] generalComment of oxidation of butane (RER): This data represents the multioutput-process "butane oxidation." This process delivers the co-products formic acid, methyl acetate, ethyl acetate, acetic acid, methyl ethyl ketone and acetone based off of 1 kg of butane. The raw materials, auxilliaries and energy consumption are modelled with data from literature sources. The emissions are estimated. Infrastructure is included with a default value. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.] None
Origin: /Bund/UBA/ProBas
Tags: Butan ? Ameisensäure ? Essigsäure ? Rhodium ? Acetat ? Brennstoff ? Methanol ? New York ? Acetaldehyd ? Benzol ? Katalysator ? Kohlenwasserstoff ? VOC-Emission ? Kohlenmonoxid ? Destillation ? Oxidation ? Wasser ? Manufacture of basic chemicals ? Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics and synthetic rubber in primary forms ? Manufacture of chemicals and chemical products ? Manufacturing ?
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Language: Deutsch
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