Process of carbonization

In recent years, the development of hydrogen as a new reliable energy source has become a trend and caught lots of attention from all over the world. Hydrogen is a fundamental element that can be produced via different processes, which can be classified into three main groups: green processes (electrolysis), carbon-treated processes (thermoconversion processes), and traditional processes (reforming processes). Hydrogen products were identified using their specific color such as green, blue, and brown hydrogen…

15p viyamanaka 06-02-2025 4 2   Download

This research was conducted to determine the alcohol concentration, alcohol immersion time and the ratio of raw materials /solvent to separate the highest amount of wax in rice bran before extracting rice bran oil.

7p viyamanaka 06-02-2025 2 2   Download

Carbon nanodots (CNDs) are the latest nano-sized carbon materials having unique properties such as biocompatible, highly photoluminescent, and nontoxic which are suitable for diverse applications including lighting, sensing, bioimaging, and biochemical analyzing.

15p viprimi 16-12-2024 4 1   Download

The research objectives of the thesi: Manufacturing biochar (BC) and activated carbon from coffee husk; Fabrication of biochar/activated carbon composite materials from coffee husk and MnFe2O4 nanomaterials to treat Cr(VI) and Ni(II) ions in water. Clarifying adsorption mechanism and heavy metal ion adsorption model on VLHP from coffee husk.

26p extraenglish 24-05-2021 24 3   Download

The article is devoted to some aspects of research of hostile environment influence on the concrete durability. The mechanism of formation of chaotically diversified difficult structure is described. Chemical interactions of cement with active components of diffusion in steam space are examined.

7p tohitohi 19-05-2020 18 1   Download

The objectives of dissertation: The objectives of this dissertation were to investigate the effects of nitrite, high concentrations of carbon dioxide and elevated temperatures to physiological parameters and growth of the air-breathing C. ornata during sub-lethal and chronic exposures of these factors in isolation and combination in order to provide a better physiological understanding, particularly recommendations and solutions for minimizing impacts of nitrite toxicity and its combination with other environmental elements in aquaculture ponds under global climate change

213p cotithanh321 06-08-2019 22 4   Download

Main contents of thesis: Introdution of fuel cell and studies on Pt catalysts and Pt alloy catalysts in PEMFC. Research on synthesis of catalytic materials Pt/C 20% wt. by electroless deposition method and evaluating to influence of experimental parameters such as pH, temperature... in the synthesis process on the properties of catalyst Pt / C 20%wt.

22p xacxuoc4321 09-07-2019 56 4   Download

(BQ) The present work deals with the comparison of the MRR for EN19 and EN41 material in a die sinking EDM machine. The various input factors like Pulse ON time, Pulse OFF time, Discharge current and voltage were considered as the input processing parameters, while the MRR is considered as the output. Optimization using Taguchi method was performed to predict the best combination of inputs towards maximum output.

7p xuanphuongdhts 27-03-2017 40 2   Download

3-Methyl-branched fatty acids, as phytanic acid, undergo peroxisomala-oxidation in which they are shortened by 1 carbon atom. This process includes four steps: activation, 2-hydroxylation, thiamine pyrophosphate dependent cleavage and aldehyde dehydrogenation. The thiamine pyrophosphate dependence of the third step is unique in peroxisomal mammalian enzymology. Human pathology due to a deficient alpha-oxidation is mostly linked to mutations in the gene coding for the second enzyme of the sequence, phytanoyl-CoA hydroxylase....

9p fptmusic 16-04-2013 41 2   Download

In eukaryotes, pre-rRNA processing depends on a large number of non-ribosomal trans-acting factors that form large and intriguingly organized complexes. A novel nucleolar protein, Nop53p, was isolated by using Nop17p as bait in the yeast two-hybrid system. Nop53p also interacts with a second nucleolar protein, Nip7p. A carbon source-conditional strain with the NOP53coding sequence under the control of theGAL1promoter did not grow in glucose-containing medium, showing the phenotype of an essential gene. ...

14p fptmusic 11-04-2013 33 2   Download

Histidine-containing protein (HPr) is a central metabolic sensor in low-GC Gram-positive bacteria and plays a dual role in sugar uptake by the phos-phoenolpyruvate–sugar phosphotransferase system and in transcriptional control during carbon catabolite repression. The latter process is mediated by interaction between HPr and the carbon catabolite repression master transcription regulator, carbon catabolite protein A (CcpA), a member of the LacI-GalR family of DNA-binding proteins.

11p inspiron33 26-03-2013 50 5   Download

Branched-chain lipids are important components of the human diet and are used as drug molecules, e.g. ibuprofen. Owing to the presence of methyl groups on their carbon chains, they cannot be metabolized in mitochon-dria, and instead are processed and degraded in peroxisomes. Several dif-ferent oxidative degradation pathways for these lipids are known, including a-oxidation, b-oxidation, and x-oxidation.

14p media19 06-03-2013 39 3   Download

Serine hydroxymethyltransferase (SHMT) belongs to the a-family of pyridoxal 5¢-phosphate-dependent enzymes and catalyzes the reversible conversion of l-Ser and tetrahydrofolate to Gly and 5,10-methylene tetrahydrofolate. 5,10-Methylene tetrahydrofolate serves as a source of one-carbon fragment in many biological processes.

13p media19 04-03-2013 26 2   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Single step process for the synthesis of carbon nanotubes and metal/alloy-filled multiwalled carbon nanotubes

6p dauphong18 09-03-2012 41 3   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Excellent Field Emission Properties of Short Conical Carbon Nanotubes Prepared by Microwave Plasma Enhanced CVD Process

6p sting10 24-02-2012 54 5   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Effects of multi-walled carbon nanotubes (MWCNT) under Neisseria meningitidis transformation process

28p panasonic01 13-12-2011 44 6   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Carbon allocation among tree organs: A review of basic processes and representation in functional-structural tree models...

13p toshiba7 05-10-2011 39 2   Download

To understand oxidative stress, we review mitochondria together. MItochondria Mitochondria consume over 80 percent of the oxygen we breathe and make over 90 percent of the energy our cells need to function. They use the oxygen in the air we breathe to release energy from food. This process transforms food calories into chemical energy, water, and carbon dioxide. The released chemical energy is then stored in the form of adenosine triphosphate (ATP). ATP is the universal currency of energy used by all life on earth.

4p truongthiuyen1 09-06-2011 68 5   Download

Chapter 7 Biosphere–Atmosphere Exchange of Old-Growth Forests: Processes and Pattern Alexander Knohl, Ernst-Detlef Schulze, and Christian Wirth Forests are important agents of the global climate system in that they absorb and reflect solar radiation, photosynthesise and respire carbon dioxide and transpire water

18p mama15 15-10-2010 69 6   Download

Carbonylation is one of the most important reactions leading to C-C bond formation. Direct synthesis of carbonyl compounds with CO gives rise to carboxylic acids and their derivatives, such as esters, amides, lactones, lactams etc. The process can be represented by the simple reactions of Scheme 5.1. In general, carbonylation proceeds via activation of a C-H or a C-X bond in the olefins and halides or alcohols, respectively, followed by COinsertion into the metal-carbon bond.

17p boyminsk 10-06-2010 127 14   Download