The invention relates to a gas sensor which is used to detect ammonia by detecting and evaluating conductivity variations on semi-conductive metal oxides, comprising: a substrate, a gas sensitive laye
206. general equation for a chemical reaction化学反应的通式 207. proton theory of acid-base酸碱质子理论 208. acid-base titration酸碱滴定法 209. dissociation constant解离常数 210. conjugate acid-base pair共轭酸碱对 211. acetic acid乙酸 212. hydronium ion水合氢离子 213. electrolyte电解质 214. ion...
Test gas volumes to a time constant are added to a constant volume of carrier gas itself free from test gas. The gases are then applied to a mixing vessel and homogenised, so that a gas concentration is delivered at the output. An injector is provided for the test gas addition in several...
FIGURE 9. Simplified flowsheet of ammonia synthesis. For this separation two technologies can be used cryogenic separation or membrane gas permeation. The membrane process uses several hollow fibre (or spiral wound) modules arranged in two sets. In the first set, hydrogen rich gas is produced as...
2.5 Atmospheric OH Rate Constant 6.86e-15 cm3/molecule*sec 2.6 Autoignition Temperature 999 °F (USCG, 1999) 2.7 Chemical Properties Raw natural gas, as found in nature, or a gaseous combinationof hydrocarbons having carbon numbers predominantly inthe range of C1 through C4 separated from raw nat...
(at constant pressure) as a function of temperature for NG with a composition of 1% nitrogen, 91% methane, 5% ethane, 2% propane, 0.6% n-butane, and 0.4% i-butane (on mole basis). As the isobar of 5MPa is indicated by bold curve, for example, the liquefaction flow of NG can be ...
CONSTANT POTENTIAL ELECTROLYTIC TYPE AMMONIA GAS SENSORPROBLEM TO BE SOLVED: To increase the response speed to ammonia gas.IMAYA HIROSHI今屋 浩志MATSUDA HIROYUKI松田 裕之
Specific heat at constant volume, specific heat at constant pressure, specific heat ratio and individual gas constant - R - common gases as argon, air, ether, nitrogen and many more.
The refrigerants are supplied and vaporize at different but constant temperature levels and heat is expelled from the gas through heat exchangers. In this way, the thermal energy removed from natural gas is transferred from the methane cycle to the ethylene cycle and, finally, to the propane ...
Its built-in constant flow and powerful suction pump makes its detection accuracy higher, and its response time is 2.5 times faster than the diffusion model on the market. When the target gas is lighter than air, no need to install at high place, which can get the de...