当前位置: Home / Faq / Large air separation FAQ /

Why is acetylene the most dangerous substance in air separation equipment

Why is acetylene the most dangerous substance in air separation equipment
Oct 17, 2023
Author: DEAR AST

Because acetylene is an unsaturated hydrocarbon with high chemical activity and extremely unstable properties. Solid acetylene may also explode in the absence of oxygen, decompose into carbon and hydrogen, and release heat. The explosion heat generated is

8374kJ/kg, resulting in a gas volume of 0.86m3/kg and a temperature of 2600 ℃. If oxygen is present during the decomposition of acetylene, the generated carbon and hydrogen combine with oxidation to undergo an oxidation reaction and further release heat, thereby increasing the power of the explosion.

In addition, acetylene has extremely low solubility in liquid oxygen compared to other hydrocarbons, as shown in the table below,

Solubility of acetylene in liquid oxygen:

Temperature/K

104

99.4

98.6

83

Solubility/cm3·L-1

13

22.8×10-6

10.4

13.5×10-6

9.9

12.9×10-6

3

3.6×10-6

DEAR Air Separation has rich project engineering experience and continuously utilizes innovative technologies to optimize equipment energy conservation and safety. It is a major manufacturer and gas supplier of air separation equipment in China.

DEAR Air Separation Solve YourWhy is acetylene the most dangerous substance in air separation equipmentYou can also learn about otherLarge air separation FAQ about DEAR Air Separation, and solve the problem for you.
Didn’t find the problem encountered?
Please contact live chat or email for quick help.
Related FAQ
More Related FAQ
Answer: select the small cryogenic air separation unit with argon, and give priority to verifying the real continuous operation performance of the unit with argon below 1000nm ³/h, avoiding the scheme with only drawings and no long-term operation record. Key dimensions of model selection: 1. operation performance: it is confirmed that the manufacturer has a long-term stable production case of small flow air separation with argon. Deere air separation small-scale hydrogen free total distillation argon extraction air separation, supports scale customization below 1000nm ³/h, and is equipped with intelligent control system, with mature landing performance. 2. power consumption per unit liquid argon
2026.11.06
Answer: the default unit gauge pressure is MPa (g), and the mainstream is cryogenic full low pressure external compression process. Design pressure of conventional energy-saving models in the industry: 0.50~0.55 MPa (g); The lower limit of stability of ordinary process is about 0.45 MPa (g). In general, it is not recommended to be lower than 0.42 MPa (g) for a long time in the conventional scheme. If the pressure is too low, there will be risks such as poor heat exchange in the precooling tower, insufficient purification of molecular sieve, difficult to balance the cooling capacity, and the air compressor close to the surge area. The internal compressed air is distributed with a booster. The main air compressor is mostly 0.55~0.65 MPa (g), and the lower limit is mostly 0.50 MPa (g), which is difficult to achieve below 0.45MPa (g). Deere air separation ultra-low discharge pressure patented energy-saving external compression air separation, through the collaborative optimization of the w
2026.11.06
Need more information?
Contact us for more details about our air separation equipment, solutions and services.
Products
  • Large air separation
  • Small air separation
  • High purity nitrogen air separation
  • Liquefaction air separation
  • Complete air separation
  • Biogas purification
  • Air separation parts
Need more information?
Tel:+86-19837850537
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top