Influence of the synthesis conditions of H-ZSM-5 on its physical properties and catalytic activity in methanol conversion: the water content of the reaction mixture

This study aims to gain influence the thickness and concentration variations affect the characteristics of sago binder physical properties of catfish jerky. As well as getting influence the thickness and concentration variations affect the level of binder sago joy panelists in terms of organoleptic test. Data were analyzed by analysis of variance using the Analysis Of Variance (ANOVA). If there is a significant difference followed by a further test of DMRT 5% level (physical properties). While the hedonic test performed using Kruskal Wallis analysis. Results uniformity analysis (ANOVA) showed catfish fillet thickness and concentration of sago affect the physical properties of the water content and the level of violence. Where catfish jerky using sago binder 5% and 10% significantly different. The use of sago binder 5% and 10% led to an increase in water content. Besides the addition of the binder resulted in increasing levels of violence catfish jerky. Based on the statistics found that the influence of the thickness and concentration of the binder sago aroma, flavor and color of the sixth jerky catfish were not significantly different. But the texture was significantly different.

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Platinum Black Catalysts. I. Physical Properties and Catalytic Activity*

The Journal of Physical Chemistry ◽

10.1021/j150310a007 ◽

1930 ◽

Vol 34 (4) ◽

pp. 748-752 ◽

Cited By ~ 9

Author(s):

G. B. Taylor ◽

G. B. Kistiakowsky ◽

J. H. Perry

Keyword(s):

Catalytic Activity ◽

Physical Properties ◽

Platinum Black

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Synthesis of Spherical Mesoporous Co-MCM-41

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.79-82.131 ◽

2009 ◽

Vol 79-82 ◽

pp. 131-134

Author(s):

Peng Sun ◽

Yan Kong ◽

Jun Du ◽

Xin Jie Xu ◽

Jun Wang ◽

...

Keyword(s):

Ascorbic Acid ◽

Catalytic Activity ◽

Significant Influence ◽

Cobalt Content ◽

Synthesis Conditions ◽

Hydroxylation Of Benzene ◽

Direct Hydroxylation ◽

Mcm 41

A serious of spherical Co-MCM-41s with different cobalt content was synthesized and characterized by XRD, SEM, N2 isotherms and ICP techniques. The influences of synthesis conditions on the structure were also studied. The use of ascorbic acid as reductant had significant influence on the morphology and the catalytic activity of Co-MCM-41. The prepared samples exhibited higher catalytic activity in the direct hydroxylation of benzene by H2O2 than those with common morphology.

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Catalytic Activity of Ni3Al Foils in Methanol Reforming

Materials Science Forum ◽

10.4028/www.scientific.net/msf.636-637.895 ◽

2010 ◽

Vol 636-637 ◽

pp. 895-900 ◽

Cited By ~ 8

Author(s):

P. Jozwik ◽

R. Grabowski ◽

Z. Bojar

Keyword(s):

Catalytic Activity ◽

Chemical Properties ◽

Methanol Conversion ◽

Advanced Materials ◽

Coarse Grained ◽

High Tech ◽

High Catalytic Activity ◽

Water Mixture ◽

Catalytic Coating ◽

Thin Foils

Intermetallic Ni3Al–based alloys (doped with zirconium and boron) represent a group of advanced materials with potential outstanding physical and chemical properties (such as high catalytic activity and structural stability in corrosive environments) that make them a considerable candidate for many high-tech applications. In this paper, the catalytic activity of fully dense Ni3Al-based thin foils (as thin as 50 m) possessing structures with micrometer or nanometer grain sizes is discussed. The examined material, without any additional catalytic coating, was successfully produced from as-cast coarse-grained sheets by heavy cold rolling and recrystallisation with an appropriately chosen set of parameters. The examination focuses on methanol and methanol/water mixture decomposition into H2 and CO at temperatures up to 530OC in a quartz reactor. Except for these products, a small amount (below 1%) of CO2 and dimethyl ether was observed. The catalyzed reaction began effectively at about 400OC, with a methanol conversion of about 90% or higher.

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Characterizing Soil Physical Properties for Soil Moisture Monitoring with the North Carolina Environment and Climate Observing Network

Journal of Atmospheric and Oceanic Technology ◽

10.1175/jtech-d-11-00104.1 ◽

2012 ◽

Vol 29 (7) ◽

pp. 933-943 ◽

Cited By ~ 14

Author(s):

Weinan Pan ◽

R. P. Boyles ◽

J. G. White ◽

J. L. Heitman

Keyword(s):

North Carolina ◽

Soil Moisture ◽

Physical Properties ◽

Soil Properties ◽

Water Content ◽

Bulk Density ◽

Soil Physical Properties ◽

The North ◽

Wide Range ◽

Soil Moisture Monitoring

Abstract Soil moisture has important implications for meteorology, climatology, hydrology, and agriculture. This has led to growing interest in development of in situ soil moisture monitoring networks. Measurement interpretation is severely limited without soil property data. In North Carolina, soil moisture has been monitored since 1999 as a routine parameter in the statewide Environment and Climate Observing Network (ECONet), but with little soils information available for ECONet sites. The objective of this paper is to provide soils data for ECONet development. The authors studied soil physical properties at 27 ECONet sites and generated a database with 13 soil physical parameters, including sand, silt, and clay contents; bulk density; total porosity; saturated hydraulic conductivity; air-dried water content; and water retention at six pressures. Soil properties were highly variable among individual ECONet sites [coefficients of variation (CVs) ranging from 12% to 80%]. This wide range of properties suggests very different behavior among sites with respect to soil moisture. A principal component analysis indicated parameter groupings associated primarily with soil texture, bulk density, and air-dried water content accounted for 80% of the total variance in the dataset. These results suggested that a few specific soil properties could be measured to provide an understanding of differences in sites with respect to major soil properties. The authors also illustrate how the measured soil properties have been used to develop new soil moisture products and data screening for the North Carolina ECONet. The methods, analysis, and results presented here have applications to North Carolina and for other regions with heterogeneous soils where soil moisture monitoring is valuable.

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Pengaruh Gambut Terbakar Terhadap Beberapa Sifat Fisika Gambut di Kecamatan Tripa Makmur

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v4i2.10970 ◽

2020 ◽

Vol 4 (2) ◽

pp. 416-425

Author(s):

Teuku Muhammad Afrizal ◽

Hairul Basri ◽

Muhammad Rusli Alibasyah

Keyword(s):

Organic Matter ◽

Physical Properties ◽

Water Content ◽

Statistical Tests ◽

Peat Soil ◽

Rate Of Change ◽

The Other ◽

Volume Weight ◽

Top Soil ◽

Significant Difference

Abstrak. Gambut mengandung bahan organik yang tinggi. Gambut yang didrainase rentan terhadap kebakaran. Pemanfaatan gambut di Aceh sangat luas. Umumnya, gambut sering dibakar agar dapat dengan cepat dimanfaatkan., khususnya di Kecamatan Tripa Makmur Kabupaten Nagan Raya. Penelitian ini bertujuan untuk melihat seberapa jauh tingkat perubahan sifat fisika gambut terbakar Rawa Tripa Kabupaten Nagan Raya. Hasil penelitian menunjukkan bahwa rata-rata berat volume tertinggi terdapat pada sampel T1 (top soil) yaitu 0,36 g cm-3 dan terendah pada T0 (sub soil) yaitu 0,17 g cm-3. Kadar air tertinggi terdapat pada sampel T0 (sub soil) yaitu 234,82% dan terendah pada T1 (top soil) yaitu 81,96%. Porositas tertinggi terdapat pada sampel gambut T0 (sub soil) yaitu 94,93% dan terendah pada T1 (top soil) yaitu 65,28%. Permeabilitas tertinggi terdapat pada T0 (sub soil) yaitu 33,80 cm/jam dan terendah pada T1 (top soil) yaitu 16,10 cm/jam. Hasil uji statistik menunjukkan bahwa ada perbedaan yang signifikan pada parameter berat volume dengan t hitung (3,482) t tabel (1, 943), sedangkan pada parameter lainnya tidak ada perbedaan yang signifikan. Tingkat kematangan gambut di kawasan Tripa Makmur adalah hemik. Kedalaman gambut sebesar 3 meter. Subsiden tertinggi adalah 100 cm pada gambut terbakar di tahun 2015. Warna gambut adalah coklat kehitaman. The Effect of Burning Peat on Some of The Physical Porperties of Peat Soil in The Tripa Makmur Sub DistrictAbstract. Peat contains high organic matter. Drained peat is susceptible to fire. The use of peat in Aceh is very broad. Peat is often burned so that it can be quickly utilized especially in Tripa makmur Sub Districk, Nagan Raya Districk. This study aims to see how far the rate of change in the physical properties of peat is burning Rawa Tripa in Nagan Raya District. The results showed that the highest average of volume weight was found in T1(top soil) 0,36 g cm-3 and the lowest in T0(sub soil) 0,17 g cm-3. The highest water content was found inT0(sub soil) 234,82% and the lowest was on T1(top soil) 81,96%. The highest porosity was found T0(sub soil) 94,93% and the lowest in T1(top soil) 65,28%. The highest permeability is found in T0(sub soil) 33,80 cm/hour and the lowest is on T1(top soil) 16,10 cm/hour. The results of statistical tests show that there is a significant difference in the parameters of volume weight with t count 3,482 t table 1,943, while in the other parameters have no significant differences. The level of maturity in the Tripa Makmur area is hemik. Peat depth of 3 meters. The highest subsidance is 100 cm on burning peat in 2015. The color of this peat is blackish brown.

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SIFAT FISIS PAPAN SEMEN DARI LIMBAH KULIT BATANG SAGU

JURNAL HUTAN PULAU-PULAU KECIL ◽

10.30598/jhppk.2017.1.3.203 ◽

2017 ◽

Vol 1 (3) ◽

pp. 203

Author(s):

Rohny S. Maail

Keyword(s):

Physical Properties ◽

Water Absorption ◽

Water Content ◽

Calcium Chloride ◽

High Performance ◽

Raw Materials ◽

Particle Board ◽

Cement Board

This research objectives were to investigate possibility of using the waste of sago cortex (Ela sagu/Wa’a) in the manufacture of cement board and to determine the physical properties of cement board based on the comparison in proportion of materials (cement, sago, water) and catalyst calcium chloride (CaCl2). Method were applied used completely randomesed design with tree replications in 3x3x3, with total 27 samples of cement board. The results shown that the waste of sago cortex ca be applied as raw materials to manufacture of cement board and fulfill the standard of particle board (JIS A 5908, 2003). The board have dencity which is almost equal to the target of dencity, lower value in water content, water absorption and thichness swelling so that have good performance in quality and stability dimensions. The sago cortex in side of base and the catalyst CaCl2 in 6% gave high performance for all physical properties of cement board.

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PENGARUH SUBSTITUSI TEPUNG TERIGU DENGAN TEPUNG KENTANG HITAM (Coleus tuberosus) TERHADAP SIFAT KIMIA DAN ORGANOLEPTIKCOOKIES

Pro Food ◽

10.29303/profood.v4i1.79 ◽

2018 ◽

Vol 4 (1) ◽

pp. 304-310

Author(s):

Siska Cicilia ◽

Eko Basuki ◽

Agustono Prarudiyanto ◽

Ahmad Alamsyah ◽

Dody Handito

Keyword(s):

Chemical Composition ◽

Physical Properties ◽

Protein Content ◽

Water Content ◽

Wheat Flour ◽

Potato Starch ◽

Ash Content ◽

Randomized Design ◽

Alternative Materials ◽

Completely Randomized Design

Cookies is one type of populer biscuits. The basic ingredients of cookies are generally wheat flour. The availability of wheat flour in Indonesia is dependent on imports. To overcome this, the substitute of wheat flour is needed. Alternative materials can from tubers one of them is a black potato. The objective of this research were to substitute wheat flour with black potato starch for cookie manufacture and to analyze chemical composition and physical properties of cookies. The design used was Completely Randomized Design (CRD) with flour flour treatment: black potatoes are 100%, 90%: 10%, 80%: 20%, 70%: 30%, 60%: 40%, and 50%: 50%. The addition of black potato starch cause a decrease in water content, protein content, fat content and increased ash content of cookies. The addition of potato starch up to 30% produces the preferred cookies that accepted by panelists.Key words: Coleus tuberosus, cookies, wheat flourABSTRAKCookies (kue kering) merupakan salah satu jenis biskuit yang banyak disukai oleh masyarakat dari berbagai kalangan. Bahan dasar pembuatan cookies umumnya adalah tepung terigu. Ketersediaan tepung terigu di Indonesia masih tergantung pada impor. Untuk mengatasi hal tersebut maka diperlukan bahan alternatif pengganti terigu. Bahan alternatif bisa berasal dari umbi-umbian salah satunya adalah kentang hitam. Penelitian ini bertujuan untuk mensubstitusi tepung terigu dengan tepung kentang hitam pada pembuatan cookies serta menganalisa komposisi kimia dan sifat fisik cookies tersebut. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan perlakuan tepung terigu tepung : kentang hitam yaitu 100%, 90% : 10%, 80% : 20%, 70% : 30%, 60% : 40%, dan 50% : 50%. Penelitian ini dilakukan di laboratorium pengolahan pangan dan laboratorium kimia dan biokimia pangan Fatepa Universitas Mataram. Penambahan tepung kentang hitam menyebabkan penurunan kadar air, kadar protein, kadar lemak dan peningkatan kadar abu cookies.Penambahan tepung kentang sampai 30% menghasilkan cookies yang disukai panelis.Kata kunci: cookies, kentang hitam, tepung terigu

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