b) the synthesis of ammonia (the Haber Process)

Ripening can then be conducted under controlled conditions of temperature, relative humidity and ethylene to achieve uniform appearance and quality of ripe fruit. Fruit is placed into specially constructed ripening rooms and brought to optimum ripening temperature and humidity. Ethylene is then raised to a prescribed concentration using either a "catalytic generator" that makes ethylene gas from liquid ethanol or from commercially available gas supplies. Forced-air cooling systems ensure that fruit are uniformly exposed to the room ethylene concentration. When fruit are exposed to ethylene under these controlled conditions they will initiate their respiratory climacteric pattern and ripen at a relatively uniform rate. Conditions and duration can be varied to suit customer specifications for stage of ripening and colour development.

Each 100 mL- and 500 mL package has a special cap through which a syringe needle can be inserted.

The proportion of ammonia in the equilibrium mixture increases with increasing pressure and with falling temperature (Le Chatelier's Principle). Quantitative data are given in Table 1. To obtain a reasonable yield and favourable rate, high pressures, moderate temperatures and a catalyst are used.


- An expiration date is provided for super dehydrated solvents.

Another method of producing bio-based propene is via syngas and propan-1-ol. Synthesis gas (carbon monoxide and hydrogen) is used to convert bioethanol to propan-1-ol (Figure 3, route 4):


HMF can be oxidized to a dicarboxylic acid,

Samsung Engineering announced on October 24 that it has signed an EPC contract with ORT (Olefins Reconfiguration Project) with Thailand's PTTGC (PTT Global ...

Products marketed to reduce ethylene in your refrigerator

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ethylene production in ripening rooms

Honeywell today announced that its UOP Russell business will provide a third cryogenic gas processing plant to Brazos Midstream. The high-recovery 200 million ...

Example emission profiles for CO2 and C2H4 for a ripening tomato

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Syn-gas-based mono ethylene glycol synthesis in …

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Ethylene and fruit ripening: From illumination gas to …

W. R. Grace & Co, the leading supplier of polyolefin catalyst technology and polypropylene (PP) process technology, has contracted to license its UNIPOL® ...

Also called ethene, olefiant gas

ClearSign Combustion Corporation, an emerging leader in industrial combustion technologies that reduce emissions and improve efficiency, today announced the ...