Question

Выберите промышленный способ получения водорода и кислорода.​

Answer 1

Ответ:

Паровая конверсия метана и его гомологов, газификация кокса, электролитическое разложение воды

Объяснение:

После первой конверсии продукт содержит до 10 процентов метана, для разложения которого в смезь вводят атмосферный воздух

В конце процесса водород очищают от кислорода

оксидов и углерода

Answer 2

Prominent Industrial Methods for Producing Hydrogen and Oxygen

There are several industrial methods for producing hydrogen and oxygen. Two commonly used methods are the electrolysis of water and the steam reforming of natural gas.

1. Electrolysis of Water: The electrolysis of water is a process that uses an electric current to split water molecules into hydrogen and oxygen gases. This method involves passing an electric current through water, which causes the water molecules to dissociate into hydrogen ions (H+) and hydroxide ions (OH-). The hydrogen ions are attracted to the cathode, where they gain electrons and form hydrogen gas (H2), while the hydroxide ions are attracted to the anode, where they lose electrons and form oxygen gas (O2). The overall reaction can be represented as follows:

2H2O(l) → 2H2(g) + O2(g)

This method requires a source of electricity, such as a direct current (DC) power supply, to drive the electrolysis process. The electricity can be generated from various sources, including renewable energy sources like solar or wind power. Electrolysis of water is considered a clean and sustainable method for producing hydrogen and oxygen.

2. Steam Reforming of Natural Gas: The steam reforming of natural gas is another widely used industrial method for producing hydrogen and oxygen. This process involves reacting natural gas (primarily methane, CH4) with steam (H2O) at high temperatures (typically around 700-1000°C) in the presence of a catalyst. The reaction produces hydrogen gas and carbon monoxide (CO), which can be further reacted to produce additional hydrogen. The carbon monoxide can also be used as a feedstock for other chemical processes. The overall reaction can be represented as follows:

CH4(g) + H2O(g) → CO(g) + 3H2(g)

The hydrogen gas produced in this process can be separated and purified for various industrial applications, while the oxygen gas can be used in other processes or released as a byproduct.

These two methods, electrolysis of water and steam reforming of natural gas, are widely used in industry for the production of hydrogen and oxygen. Each method has its advantages and considerations, such as energy efficiency, cost, and environmental impact. The choice of method depends on factors such as the availability of resources, energy requirements, and specific industrial applications.