scholarly journals Catalytic Combustion for Heat Production and Environmental Protection

2017 ◽  
Vol 3 (4) ◽  
pp. 241 ◽  
Author(s):  
Z.R. Ismagilov
Keyword(s):  
Environmental Protection ◽  
Heat Production ◽  
Catalytic Combustion ◽  
Organic Waste ◽  
Environment Protection ◽  
Rocket Fuel ◽  
Unsymmetrical Dimethylhydrazine ◽  
Environmentally Safe ◽  
Liquid Rocket ◽  
Fluidized Catalyst Bed

Processes and apparatuses for catalytic combustion of fuels for heat production and for treatment of wastes for environment protection are described. Special attention is paid to processes of treatment of mixed<br />radioactive organic waste in a fluidized catalyst bed and for environmentally safe catalytic technology for the utilization of liquid rocket fuel unsymmetrical dimethylhydrazine (UDMH) and wastes, containing it.

scholarly journals Nanocarbon from Rocket Fuel Waste: The Case of Furfuryl Alcohol-Fuming Nitric Acid Hypergolic Pair

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Nikolaos Chalmpes ◽  
Athanasios B. Bourlinos ◽  
Smita Talande ◽  
Aristides Bakandritsos ◽  
Dimitrios Moschovas ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Furfuryl Alcohol ◽  
Materials Science ◽  
Ambient Conditions ◽  
Materials Synthesis ◽  
Rocket Fuel ◽  
Carbon Nanosheets ◽  
New Synthesis ◽  
Fuming Nitric Acid ◽  
Liquid Rocket

In hypergolics two substances ignite spontaneously upon contact without external aid. Although the concept mostly applies to rocket fuels and propellants, it is only recently that hypergolics has been recognized from our group as a radically new methodology towards carbon materials synthesis. Comparatively to other preparative methods, hypergolics allows the rapid and spontaneous formation of carbon at ambient conditions in an exothermic manner (e.g., the method releases both carbon and energy at room temperature and atmospheric pressure). In an effort to further build upon the idea of hypergolic synthesis, herein we exploit a classic liquid rocket bipropellant composed of furfuryl alcohol and fuming nitric acid to prepare carbon nanosheets by simply mixing the two reagents at ambient conditions. Furfuryl alcohol served as the carbon source while fuming nitric acid as a strong oxidizer. On ignition the temperature is raised high enough to induce carbonization in a sort of in-situ pyrolytic process. Simultaneously, the released energy was directly converted into useful work, such as heating a liquid to boiling or placing Crookes radiometer into motion. Apart from its value as a new synthesis approach in materials science, carbon from rocket fuel additionally provides a practical way in processing rocket fuel waste or disposed rocket fuels.

Assessment of contamination by rocket fuel components of remedied sites of silo launchers

2021 ◽  
Vol 61 (9) ◽  
pp. 567-571
Author(s):  
Olga N. Semenova ◽  
Tatyana V. Ryabova ◽  
Olga M. Hudyakova ◽  
Svetlana V. Smirnova
Keyword(s):  
Building Materials ◽  
Degradation Products ◽  
Well Being ◽  
Environmental Safety ◽  
Ecological Condition ◽  
Chemical Safety ◽  
Rocket Fuel ◽  
Nature Restoration ◽  
Liquid Rocket ◽  
Chelyabinsk Region

Introduction. The use of highly toxic and highly hazardous components of liquid rocket fuel in silo-based intercontinental ballistic missiles makes it necessary to assure the health and epidemiological well-being of the population and environmental safety when eliminating silo launchers. The study aims to assess the chemical safety of the sites of silo launchers after their elimination by detonation and remediation of disturbed lands. Materials and methods. Samples of soil, water, vegetation were taken at 20 remedied sites of the former silo launchers of "single start" located in the Chelyabinsk region and the Altai Territory. These samples were analyzed in an accredited laboratory for the content of unsymmetrical dimethyl-hydrazine and its degradation products using certified photometric methods. Results. At the time of the survey in 2019, in 19 of 20 sites of former silo launchers, facts of unauthorized intrusion to the remedied sites were established in order to recover a scrap of non-ferrous and ferrous metals, building materials up to the depth of the location of the destroyed shafts of mine structures. In soil samples from 3 sites of silo launchers located in the Chelyabinsk region, asymmetric dimethyl-hydrazine was found in concentrations exceeding the MPC by 1.02 - 1.6 times. In water samples from open and water-flooded shafts of silo launchers, degradation products of unsymmetrical dimethyl-hydrazine were absent. Contamination of herbaceous and coniferous vegetation with asymmetric dimethyl-hydrazine at the surveyed sites has not been established. Conclusion. Soil contamination with asymmetric dimethyl-hydrazine at three remedied sites of 20 surveyed ones may be the result of their unauthorized opening. After the intrusion, the orphan sites of the silo launchers become objects of increased chemical hazard and environmental risk. Such things require carrying out nature restoration work, strengthening supervision over their technical, health and ecological condition.

Catalytic Fluidized-Bed Co-Combustion of Peat and Anthracite

2019 ◽  
Vol 19 (3) ◽  
pp. 227-234
Author(s):  
N. A. Yazykov ◽  
A. D. Simonov ◽  
Yu. V. Dubinin ◽  
O. O. Zaikina
Keyword(s):  
Fluidized Bed ◽  
Catalytic Combustion ◽  
Oxide Catalyst ◽  
Fine Particles ◽  
Weight Percent ◽  
Equivalent Diameter ◽  
Coarse Particles ◽  
Fuel Particles ◽  
Fluidized Catalyst Bed ◽  
Industrial Aluminum

Results of the studies of catalytic combustion of peat, anthracite, as well as the mixture at the peat to anthracite weight percent ratio 40/60 are discussed. The degree of the mixture burning-off was shown to increase when peat evolving large quantity of volatile substances is added to anthracite. The burn-up degrees of the solid fuel particles less than 1.25 mm in size were 98.2 % of peat, 50.9 % of anthracite, 74.2 % of the peat and anthracite mixture at 700–750 °C and 1 m height bed of the industrial aluminum-copper-chromium oxide catalyst IC-12-70. In combusting coarse particles (equivalent diameter 11.6–18.6 mm) of molded peat and anthracite mixture, the burn-up degree was 80.5 % at the top of the fluidized catalyst bed. The burn-up degree of the coarse particles fed to the bottom of the fluidized bed was estimated with allowance for the burn-up degree of fine particles moving through the bed. With the coarse molded particles of the peat and anthracite mixture fed to 1 m height catalyst bed, the burn-up degree was shown to reach no less than 95 %. When the catalyst used is 2 mm in size, the peat and anthracite particles comprised in the molded fuel must be no more than 1–1.5 mm in size in order to prevent from ash accumulation in the fluidized catalyst bed.

Environmental Protection and Economic Development: You Can't Have your Cake and Eat it too - With the Purpose of the Environmental Law for Perspective

2014 ◽  
Vol 675-677 ◽  
pp. 1826-1829
Author(s):  
Ting Ting Wu
Keyword(s):  
United States ◽  
Economic Development ◽  
Environmental Pollution ◽  
Environmental Protection ◽  
Environmental Law ◽  
Science And Technology ◽  
Value Orientation ◽  
Environment Protection ◽  
Coordinated Development ◽  
Development And Environment

" Science and technology with law " is the world's environmental protection experiences lessons. Our country's current environmental protection law has been unable to effectively solve the increasingly serious environmental problems.The environmental protection law " dualism " ,which claiming that economic development and environment protection coordinated development ,is the shield of environmental pollution and waste of resources . Through comparing and analyzing of our country's , United States' and Japan's current environmental law legislation purpose and the effect of the practice by case , puts forward query to environmental law legislation 'purpose dualism' , further presents '"purpose monism" that taking "protecting environment, maintaining ecosystem " as the basic value orientation.

scholarly journals Spatial Planning for Development with Rational Using Resources and Environment Protection in the Area of Dung Quat - Quang Ngai City - Ly Son Island District, Quang Ngai Province

2018 ◽  
Vol 34 (1) ◽  
Author(s):  
Dang Thi Ngoc ◽  
Nguyen Cao Huan ◽  
Nguyen Dang Hoi
Keyword(s):  
Economic Development ◽  
Environmental Protection ◽  
Spatial Planning ◽  
Ecosystem Approach ◽  
Master Planning ◽  
Environment Protection ◽  
The North ◽  
Use Of Resources ◽  
Near Shore ◽  
Development Triangle

Abstract: Spatial planning for economic development with the rational using resources, and environmental protection in the area of Dung Quat - Quang Ngai City - Ly Son Island District is a specified form of the master planning towards sustainable development, cohesive onshore spatial planning and marine spatial onshore, near-shore islands. The planning is done in a way that links the approach of territorial organizations and spatial planning, linking the geographical approach and ecosystem approach. The result is established economic development triangle in the north of Quang Ngai with two mainland poles - Dung Quat and Quang Ngai city and a pole on coastal islands - Ly Son Island, two the development routes and 14 economic development areas with the rational use of resources, environmental protection and ensuring the defense and security.

scholarly journals Environmental impact assessment of proposed NH-6 of Chhattisgarh

2017 ◽  
Vol 2 (2) ◽  
pp. 67
Author(s):  
Vikram Singh Rajput ◽  
Santosh Kumar Sar ◽  
Shweta Singh ◽  
Vijita Diwan
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Protection ◽  
Environmental Impacts ◽  
Environmental Impact Assessment ◽  
Environment Protection ◽  
Environment Friendly ◽  
Toll Road ◽  
National Highway ◽  
Road Project

NH 6 is the national highway which connects Mumbai to Kolkata. Environmental Impact Assessment (EIA) process for the proposed NH 6 Toll Road project has been undertaken in accordance with the EIA Regulations. Proposed project road connecting the villages and towns by providing better quality and safe roads to the users in a sustainable and environment friendly manner. Government of India (GoI) through Ministry of Environment and Forests (MoEF) enforces Environment (Protection) Rules, 1986 for environmental protection because of intervention of new projects or activities, or on expansion and modernization of existing projects or activity based on their environmental impacts.

scholarly journals Pressure Drop Changes at Engine Fuel Inlet Filter according to Water Contents Management of KSLV-II Liquid Rocket Fuel

2020 ◽  
Vol 24 (6) ◽  
pp. 120-125
Author(s):  
Changhwan Hwang ◽  
Inho Kim ◽  
Jaeyoung Park ◽  
Seonglyong Kim ◽  
Byungil Yoo ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Engine Fuel ◽  
Rocket Fuel ◽  
Liquid Rocket ◽  
Water Contents
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