Ethanol

Kosaric, N.; Farkas, Adalbert; Sahm, Hermann; Bringer-Meyer, Stephanie; Goebel, Otto; Mayer, Dieter

doi:10.1002/14356007.a09_587

Cited by 17 publications

(22 citation statements)

References 144 publications

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“…At 320 °C, selectivities of 16.8 % and 20.2 % for ethanol were observed for the Ni catalyst on Al 2 O 3 and SiO 2 , respectively . Under the same conditions, 1,2‐PDO and propanol were also produced at selectivities of 1.8 % and 35.3 % for the Ni catalyst on Al 2 O 3 , and 4.6 % and 42.8 % for the Ni catalyst on SiO 2 , respectively …”

Section: Introductionmentioning

confidence: 89%

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Glycerol hydrogenolysis using a Ni/Ce‐Mg catalyst for improved ethanol and 1,2‐propanediol selectivities

Menchavez

Morra

2017

Can J Chem Eng

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Glycerol, a byproduct from biodiesel production, is an inexpensive and renewable alternative feedstock for producing valuable chemicals. Hydrogenolysis of glycerol produces ethanol and 1,2-propanediol (1,2-PDO) with the help of appropriate catalysts. Commercially available non-specific Ni-based catalysts have been reported for use in producing ethanol along with 1,2-PDO. In this work, a new Ni catalyst on various support materials was developed for the selective production of ethanol and 1,2-PDO using glycerol hydrogenolysis. The Ni catalyst on CeO 2 showed the highest potential for producing both ethanol and 1,2-PDO. The catalyst with 0.15-0.50 g/g (15-50 wt%) Ni on CeO 2 improved glycerol conversion at reaction temperatures of 215-245 8C, however 1,2-PDO selectivity was unsatisfactory. An improvement in 1,2-PDO selectivity was attained when Al, Si, Zn, and/or Mg were added as promoters to the Ni catalyst on CeO 2, while improvement in the selectivity for ethanol occurred only with the addition of Si or Mg. A variation in Mg content showed that 1,2-PDO selectivity was favoured at higher Mg content, while ethanol selectivity peaked at 10 % Mg. Systematic investigations found that the catalyst with 0.25 g/g (25 wt%) Ni on a Ce:Mg (4:1 mol:mol) support provided good selectivities for 1,2-PDO at 68.10 % and ethanol at 9.0 %, respectively.

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Section: Introductionmentioning

confidence: 89%

“…Ethanol, the most widely used transportation liquid biofuel, solvent, raw material in chemical synthesis (e.g. acetaldehyde, butadiene, diethyl ether, ethyl acetate, ethylamines, ethylene, glycol ethers, and acetic acid), and a beverage, has also been targeted for production from low cost glycerol.…”

Section: Introductionmentioning

confidence: 99%

Glycerol hydrogenolysis using a Ni/Ce‐Mg catalyst for improved ethanol and 1,2‐propanediol selectivities

Menchavez

Morra

2017

Can J Chem Eng

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“…Corn stover was the feedstock for the second case. Key parametric assumptions such as reaction kinetics, unit operation process conditions and separations process parameters adopted for simulations in Aspen Plus are from peer‐reviewed articles . The process involves mixing equimolar amount of pure ethanol and PGLA before sending to PFR to produce ethyl lactate.…”

Section: Methodsmentioning

confidence: 99%

Life cycle analysis of corn‐stover‐derived polymer‐grade l‐lactic acid and ethyl lactate: greenhouse gas emissions and fossil energy consumption

Adom

Dunn

2016

Biofuels Bioprod Bioref

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Co‐production of high‐value chemicals with biofuels could improve the economic viability of biorefineries while reducing biofuel life‐cycle greenhouse gas (GHG) emissions and fossil energy consumption (FEC). Polymer‐grade lactic acid (PGLA) is a high‐potential bioproduct currently produced from first‐generation feedstocks. Opportunity exists to enhance its environmental performance using cellulosic feedstocks. Moreover, ethyl lactate can be used as a functional replacement for high‐volume, energy‐intensive, and emissions‐intensive petroleum‐derived chemicals such as N‐methyl‐2‐pyrrolidone and ethyl acetate. Based on material and energy flows from Aspen Plus process models that we incorporated into the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model's bioproducts module, we developed life‐cycle GHG emissions and FEC estimates for ethyl lactate and PGLA produced from corn stover. We compared these results to those for fossil‐fuel‐derived counterparts, identified key LCA drivers, and explored the impact of end‐of‐life assumptions on LCA results. Irrespective of the end‐of‐life assumption, all the bioproducts demonstrated lower life‐cycle FEC (10–72%) and GHG emissions (23–90%) than fossil‐derived compounds for which they could serve as a functional replacement. Additionally, we reviewed the role of LCA in three major bioproduct sustainability certification schemes (the BioPreferred Program, the Roundtable on Sustainable Biomaterials, and International Sustainability and Carbon Certification Plus). None mandate an LCA of the bioproduct to assess whether, across the supply chain, these products offer environmental benefits as compared to conventional chemicals they could displace either directly or functionally. © 2016 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…Diethyl ether is currently either produced as a byproduct of ethanol synthesis by ethylene hydration processes [29] or by dehydration of (bio)ethanol either with sulfuric acid or in gas phase over alumina catalysts [30], thus forming a renewable chemical. The reverse reactions, i.e.…”

Section: Introductionmentioning

confidence: 99%

Diethyl ether cracking and ethanol dehydration: Acid catalysis and reaction paths

Phung

Busca

2015

Chemical Engineering Journal

155

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Ethanol

Cited by 17 publications

References 144 publications

Glycerol hydrogenolysis using a Ni/Ce‐Mg catalyst for improved ethanol and 1,2‐propanediol selectivities

Glycerol hydrogenolysis using a Ni/Ce‐Mg catalyst for improved ethanol and 1,2‐propanediol selectivities

Life cycle analysis of corn‐stover‐derived polymer‐grade l‐lactic acid and ethyl lactate: greenhouse gas emissions and fossil energy consumption

Diethyl ether cracking and ethanol dehydration: Acid catalysis and reaction paths

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