Hydrogen chloride removal from hydrogen gas by adsorption on hydrated ion-exchanged zeolites

2020 ◽  
Vol 381 ◽  
pp. 122512 ◽  
Author(s):  
Ravi Sharma ◽  
Tiriana Segato ◽  
Marie-Paule Delplancke ◽  
Herman Terryn ◽  
Gino V. Baron ◽  
...  
Keyword(s):  
Hydrogen Chloride ◽  
Hydrogen Gas ◽  
Chloride Removal ◽  
Hydrated Ion

Effect of surface oxygen/nitrogen groups on hydrogen chloride removal using modified viscose-based activated carbon fibers

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86006-86012 ◽  
Author(s):  
Zean Wang ◽  
Hao Liu ◽  
Kang Zhou ◽  
Peifang Fu ◽  
Hancai Zeng ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Hydrogen Chloride ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Surface Oxygen ◽  
Chloride Removal ◽  
Effect Of Surface

Nitro and nitroso groups can be introduced to improve HCl retention ability over the activated carbon fibers.

Influence of hydrocarbons on hydrogen chloride removal from refinery off-gas by zeolite NaY derived from rice husks

2020 ◽  
Vol 728 ◽  
pp. 138782 ◽  
Author(s):  
Christina May C. Tolentino ◽  
Mark Daniel G. de Luna ◽  
Cybelle M. Futalan ◽  
Angelo Earvin Sy Choi ◽  
Ferdinand G. Manegdeg ◽  
...  
Keyword(s):  
Hydrogen Chloride ◽  
Rice Husks ◽  
Zeolite Nay ◽  
Chloride Removal

scholarly journals Preparation of hydrogen chloride in hydrogen standard gas mixtures for hydrogen purity requirements

2019 ◽  
Author(s):  
Andrés Rojo ◽  
Enrique Santamaría
Keyword(s):  
Hydrogen Chloride ◽  
Electric Vehicles ◽  
Gravimetric Method ◽  
Gas Mixtures ◽  
Hydrogen Gas ◽  
Hydrogen Fuel ◽  
Purity Analysis ◽  
Fuel Cell Electric Vehicles ◽  
Standard Gas Mixtures ◽  
Standard Gas

The hydrogen gas dispensed as fuel in refuelling stations for Fuel Cell Electric Vehicles (FCEV) should meet with purity requirements according to the actual normative. In this report we approach the preparation of hydrogen chloride/hydrogen (HCl/H2) standard gas mixtures, required to support the purity analysis of hydrogen fuel. The preparation of these mixtures was perform according to the gravimetric method, using dilution steps to reach the concentration level of 10 µmol/mol as the lowest. The mixtures were prepared in 5 L aluminium alloy cylinders with no internal treatment.

Hydrogen Chloride Removal from Flue Gas by Low-Temperature Reaction with Calcium Hydroxide

2017 ◽  
Vol 32 (1) ◽  
pp. 747-756 ◽  
Author(s):  
Alessandro Dal Pozzo ◽  
Raffaela Moricone ◽  
Giacomo Antonioni ◽  
Alessandro Tugnoli ◽  
Valerio Cozzani
Keyword(s):  
Low Temperature ◽  
Calcium Hydroxide ◽  
Hydrogen Chloride ◽  
Flue Gas ◽  
Temperature Reaction ◽  
Chloride Removal

A Review of Hot Gas Cleaning Techniques for Hydrogen Chloride Removal from Biomass-Derived Syngas

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6519
Author(s):  
Vera Marcantonio ◽  
Michael Müller ◽  
Enrico Bocci
Keyword(s):  
Climate Change ◽  
Hydrogen Chloride ◽  
Thermal Efficiency ◽  
Biomass Gasification ◽  
Gas Cleaning ◽  
Promising Technology ◽  
Hot Gas ◽  
Chloride Removal ◽  
Hot Gas Cleaning ◽  
Secondary Methods

Considering the pressing challenges of supply security and climate change, advanced processes to produce electricity and biofuels from biomass have to be developed. Biomass gasification is a very promising technology, but there is a lack of comprehensive reviews, specifically on the technologies for hydrogen chloride hot gas cleanup, which are necessary in order to work at the same temperature and respect the limits of advanced downstream components. In this review, the Cl content of the main biomasses in Europe is given, and data on syngas content and the tolerance of downstream equipment are highlighted. Hot gas cleaning technologies, which have the advantage of improved thermal efficiency are reviewed, analyzing the thermodynamic and primary and secondary methods. This review identifies NaAlO2 and Na2CO3 within 450–550 °C as the most effective sorbents, which are able to reduce the concentration of HCl below 1 ppm. Nevertheless, H2S cannot be simultaneously removed and has to be removed first, because it reduces the HCl adsorption sorbent capacity.

Motions of neutral hydrogen at high latitudes

1967 ◽  
Vol 31 ◽  
pp. 265-278 ◽  
Author(s):  
A. Blaauw ◽  
I. Fejes ◽  
C. R. Tolbert ◽  
A. N. M. Hulsbosch ◽  
E. Raimond
Keyword(s):  
Surface Density ◽  
Velocity Dispersion ◽  
Neutral Hydrogen ◽  
Hydrogen Gas ◽  
High Latitudes ◽  
Low Velocity

Earlier investigations have shown that there is a preponderance of negative velocities in the hydrogen gas at high latitudes, and that in certain areas very little low-velocity gas occurs. In the region 100° <l< 250°, + 40° <b< + 85°, there appears to be a disturbance, with velocities between - 30 and - 80 km/sec. This ‘streaming’ involves about 3000 (r/100)2solar masses (rin pc). In the same region there is a low surface density at low velocities (|V| < 30 km/sec). About 40% of the gas in the disturbance is in the form of separate concentrations superimposed on a relatively smooth background. The number of these concentrations as a function of velocity remains constant from - 30 to - 60 km/sec but drops rapidly at higher negative velocities. The velocity dispersion in the concentrations varies little about 6·2 km/sec. Concentrations at positive velocities are much less abundant.

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