Anaerobic gas fermentation: A carbon-refining process for the production of sustainable fuels, chemicals, and food

2022 ◽  
pp. 457-474
Author(s):  
Melvin Moore ◽  
Vicki Z. Liu ◽  
Chih-Kai Yang ◽  
Zachary Cowden ◽  
Sean D. Simpson
Keyword(s):  
Refining Process ◽  
Gas Fermentation ◽  
Sustainable Fuels

ALLEGHENY LUDLUM E-BRITE 26-1 ALLOY

Alloy Digest ◽  
1979 ◽  
Vol 28 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Crevice Corrosion ◽  
Heat Treating ◽  
Refining Process ◽  
Low Carbon ◽  
Vacuum Refining ◽  
Temperature Performance ◽  
Corrosive Environments ◽  
Chloride Stress Corrosion Cracking ◽  
Low Nitrogen

Abstract ALLEGHENY LUDLUM E-BRITE 26-1 ALLOY is a low-carbon, low-nitrogen ferritic stainless steel made by a vacuum refining process. It provides: (1) Excellent resistance to pitting and crevice corrosion in chloride-containing environments, (2) Excellent resistance to chloride stress-corrosion cracking, (3) Resistance to intergranular corrosion, (4) Resistance to a wide variety of corrosive environments, and (5) Improved toughness and ductility after welding. Its applications include equipment for handling caustic, organic acids, nitric acid, bleach solutions, urea and chloride containing cooling waters. This datasheet provides information on composition, physical properties, microstructure, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-360. Producer or source: Allegheny Ludlum Corporation.

Extra colour removal in a refinery

2011 ◽  
pp. 718-725 ◽  
Author(s):  
Laura Diego ◽  
Fernando Martín ◽  
Marta G de Quevedo ◽  
Jaime Sagristá
Keyword(s):  
Refining Process ◽  
Ion Exchange Resins ◽  
Colour Removal ◽  
Precipitated Calcium Carbonate ◽  
Sodium Bisulphite ◽  
Powdered Carbon ◽  
Raw Sugar ◽  
Sugar Refinery ◽  
Exchange Resins ◽  
Main Factor

The main factor affecting the raw sugar refining process is certainly “colour”. The higher colour removal, the higher is the obtained sugar yield. Therefore, colour removal is the main goal throughout the process. In a conventional sugar refinery colour is removed in the purification and decolorisation steps – the second one is normally done using ion-exchange resins – but there are some other ways of colour removal such as adding some colour removing agents (powdered carbon, sodium bisulphite, PCC [precipitated calcium carbonate]). In this article the pilot plant results of experiments of increasing colour removal in the refining process are described, such as PCC addition, 3rd carbonatation (re-purification), hydrogen peroxide addition, powdered carbon addition, sodium bisulphite addition and crystallization improvements. The good results achieved in some of these trials led to perform some industrial trials, the results of wich are summarized in this article as well.

scholarly journals Self-Supported Ultra-Active NiO-Based Electrocatalysts for Oxygen Evolution Reaction by Solution Combustion

2021 ◽  
Author(s):  
Julio Lloret Fillol ◽  
Alberto Bucci ◽  
Miguel García-Tecedor ◽  
Sacha Corby ◽  
Reshma Rao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Energy Transition ◽  
Solution Combustion ◽  
Fundamental Process ◽  
Sustainable Fuels

Oxygen evolution reaction (OER) is a fundamental process to develop a technology that can drive the energy transition towards renewable and sustainable fuels. Nevertheless, efficient and straightforward methodologies to obtain...

scholarly journals Separation of Sn, Sb, Bi, and Cu from Tin Anode Slime by Solvent Extraction and Chemical Precipitation

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 515
Author(s):  
Wei-Sheng Chen ◽  
Shota Mesaki ◽  
Cheng-Han Lee
Keyword(s):  
Solvent Extraction ◽  
Liquid Phase ◽  
Ph Value ◽  
Chemical Precipitation ◽  
Extraction Process ◽  
Refining Process ◽  
Anode Slime ◽  
Electrolytic Refining ◽  
Precipitation Procedure ◽  
Tin Anode

Tin anode slime is a by-product of the tin electrolytic refining process. This study investigated a route to separate Sn, Sb, Bi, and Cu from tin anode slime after leaching with hydrochloric acid. In the solvent extraction process with tributyl phosphate, Sb and Sn were extracted into the organic phase. Bi and Cu were unextracted and remained in the liquid phase. In the stripping experiment, Sb and Sn were stripped and separated with HCl and HNO3. Bi and Cu in the aqueous phase were also separated with chemical precipitation procedure by controlling pH value. The purities of Sn, Sb, Cu solution and the Bi-containing solid were 96.25%, 83.65%, 97.51%, and 92.1%. The recovery rates of Sn, Sb, Cu, and Bi were 76.2%, 67.1%, and 96.2% and 92.4%.

scholarly journals Metabolic engineering of Moorella thermoacetica for thermophilic bioconversion of gaseous substrates to a volatile chemical

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Junya Kato ◽  
Kaisei Takemura ◽  
Setsu Kato ◽  
Tatsuya Fujii ◽  
Keisuke Wada ◽  
...  
Keyword(s):  
Carbon Flux ◽  
Cost Effective ◽  
Gas Composition ◽  
Autotrophic Growth ◽  
Acetyl Coenzyme A ◽  
Volatile Chemicals ◽  
Moorella Thermoacetica ◽  
Gas Fermentation ◽  
Dry Cell ◽  
Co Gas

AbstractGas fermentation is one of the promising bioprocesses to convert CO2 or syngas to important chemicals. Thermophilic gas fermentation of volatile chemicals has the potential for the development of consolidated bioprocesses that can simultaneously separate products during fermentation. This study reports the production of acetone from CO2 and H2, CO, or syngas by introducing the acetone production pathway using acetyl–coenzyme A (Ac-CoA) and acetate produced via the Wood–Ljungdahl pathway in Moorella thermoacetica. Reducing the carbon flux from Ac-CoA to acetate through genetic engineering successfully enhanced acetone productivity, which varied on the basis of the gas composition. The highest acetone productivity was obtained with CO–H2, while autotrophic growth collapsed with CO2–H2. By adding H2 to CO, the acetone productivity from the same amount of carbon source increased compared to CO gas only, and the maximum specific acetone production rate also increased from 0.04 to 0.09 g-acetone/g-dry cell/h. Our development of the engineered thermophilic acetogen M. thermoacetica, which grows at a temperature higher than the boiling point of acetone (58 °C), would pave the way for developing a consolidated process with simplified and cost-effective recovery via condensation following gas fermentation.

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