Reduction of Nitrogen Monoxide by Charcoal.

Kominami, Hiroshi; Sawai, Kazuki; Hitomi, Mitsunori; Abe, Ikuo; Kera, Yoshiya

doi:10.1246/nikkashi.1994.582

Cited by 15 publications

(10 citation statements)

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“…Recently, they have been studied as a humidity control substance, 1) adsorbent, 2) substance of wastewater purification, 3,4) and catalyst. 5) Recently, health problems such as "Sick Building Syndrome (Sick House Syndrome)" and "Chemical Sensitivity" are occurring due to an increase in indoor air pollution from chemicals. Although the Ministry of Health, Labour and Welfare of Japan has established a guideline value for the indoor concen-conditions and adsorption effect of chemicals has been reported on the carbides of Cryptomeria and Chamaecyparis.…”

Section: Introductionmentioning

confidence: 99%

Science of Bamboo Charcoal: Study on Carbonizing Temperature of Bamboo Charcoal and Removal Capability of Harmful Gases.

Asada

Ishihara

Yamane³

et al. 2002

JOURNAL OF HEALTH SCIENCE

176

101

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We examined the relationship between the carbonizing temperature of bamboo carbide made from Moso bamboo (Phyllostachys pubescens) and the removal effect of harmful gases and odorants, and the use of a bamboo charcoal as a countermeasure for "Sick Building Syndrome" or "Chemical Sensitivity" and the use as a deodorant. With regard to the carbonizing temperature of the bamboo charcoal, a temperature sensor was installed inside each bamboo material and the carbonizing temperature was controlled at 500, 700 and 1000ºC. The removal effect was tested for formaldehyde, toluene and benzene that are known to cause "Sick Building Syndrome" or "Chemical Sensitivity" and for ammonia, indole, skatole and nonenal as odorants. The formaldehyde removal effect was only slightly different in the charcoal at all the carbonizing temperatures. The benzene, toluene, indole, skatole and nonenal removal effect were the highest for the bamboo charcoal carbonized at 1000ºC and tended to increase as the carbonizing temperature of the bamboo charcoal increased. The removal effect for ammonia was the highest on the bamboo charcoal carbonized at 500ºC. It is concluded that the effective carbonizing temperature is different for each chemical, and a charcoal must be specifically selected for use as an adsorbent or deodorant.

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Section: Introductionmentioning

confidence: 99%

Science of Bamboo Charcoal: Study on Carbonizing Temperature of Bamboo Charcoal and Removal Capability of Harmful Gases.

Asada

Ishihara

Yamane³

et al. 2002

JOURNAL OF HEALTH SCIENCE

176

101

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“…The use of carbon as a reducing agent, ,− catalyst, ,,− and/or catalyst support 31,42,46,47,62-77 offers obvious potential advantages, including (a) very efficient, in situ oxygen scavenging capability, and (b) elimination of the environmentally problematic “slip” of the gaseous reducing agent (e.g., ammonia). The virtues of carbon-based catalysts have thus been scrutinized in considerable detail, especially during the last decade.…”

Section: Introductionmentioning

confidence: 99%

NO Reduction by Activated Carbons. 7. Some Mechanistic Aspects of Uncatalyzed and Catalyzed Reaction

et al. 1996

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In this last paper of a series devoted to uncatalyzed and catalyzed reduction of NO by carbon, we discuss some mechanistic aspects of this reaction, which is thought to be a viable alternative to selective catalytic reduction by ammonia or hydrocarbons. We present a summary of the results of isothermal and temperature-programmed reduction studies on a metal-free activated carbon and carbon loaded with K, Ca, Fe, Cu, Cr, Co, and Ni catalysts. All the results obtained on catalyzed NO reduction are consistent with a simple oxidation-reduction (redox) mechanism involving the following kinetically significant steps: (1) chemisorption of NO on the catalyst surface; (2) transfer of oxygen from the catalytically active sites to the carbon reactive sites; and(3) desorption of oxygen from the carbon surface. A comparison with the proposed mechanisms for selective catalytic reduction is offered, as well as a mechanistic interpretation of the NO reduction enhancement in the presence of O 2 .

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“…Plant biomass charcoal prepared from plant biomass wastes has been widely studied as renewable resources. Plant biomass charcoal has been applied to soil amendments, adsorbents, humidity control materials, materials for wastewater treatment, and catalysts [4]- [9]. However, plant biomass wastes have not sufficiently been recycled yet, compared to other wastes, although an enormous amount of plant biomass wastes has been discharged in the world.…”

Section: Introductionmentioning

confidence: 99%

Heat-Resistant Properties of <i>&#945</i>-Chymotrypsin Adsorbed onto Biomass Charcoal Powder

Noritomi¹,

Kurihara²,

Endo³

et al. 2014

JBNB

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Biomass charcoal powder (BCP) was used as a carrier for immobilization of α-chymotrypsin through adsorption. BCP was derived from plant biomass wastes such as dumped bamboos by oxygen-free pyrolysis at low temperatures and grinding with a jet mill. The activity of adsorbed α-chymotrypsin was strongly dependent upon the kind of BCP. The thermal denaturation curve of adsorbed α-chymotrypsin was shifted to high temperature, compared to that of free one. When α-chymotrypsin adsorbed onto BCP of bamboos was incubated at 45˚C, the half-life of adsorbed α-chymotrypsin was 2.6 times greater than that of free one. After incubation at 45˚C, the remaining activity of adsorbed α-chymotrypsin markedly depended on the kind of BCP.

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Reduction of Nitrogen Monoxide by Charcoal.

Cited by 15 publications

References 0 publications

Science of Bamboo Charcoal: Study on Carbonizing Temperature of Bamboo Charcoal and Removal Capability of Harmful Gases.

Science of Bamboo Charcoal: Study on Carbonizing Temperature of Bamboo Charcoal and Removal Capability of Harmful Gases.

NO Reduction by Activated Carbons. 7. Some Mechanistic Aspects of Uncatalyzed and Catalyzed Reaction

Heat-Resistant Properties of <i>&#945</i>-Chymotrypsin Adsorbed onto Biomass Charcoal Powder

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Reduction of Nitrogen Monoxide by Charcoal.

Cited by 15 publications

References 0 publications

Science of Bamboo Charcoal: Study on Carbonizing Temperature of Bamboo Charcoal and Removal Capability of Harmful Gases.

Science of Bamboo Charcoal: Study on Carbonizing Temperature of Bamboo Charcoal and Removal Capability of Harmful Gases.

NO Reduction by Activated Carbons. 7. Some Mechanistic Aspects of Uncatalyzed and Catalyzed Reaction

Heat-Resistant Properties of &lt;i&gt;&amp;#945&lt;/i&gt;-Chymotrypsin Adsorbed onto Biomass Charcoal Powder

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Heat-Resistant Properties of <i>&#945</i>-Chymotrypsin Adsorbed onto Biomass Charcoal Powder