Separation energy recovery from

One possible system which could be used by smaller communities is to combine source separation of solid waste with a simple PTGL process for energy conversion of the paper fraction of the waste. Since typical solid waste contains over 40, percent paper, energy recovery from the paper fraction could reduce landfill requirements by the same amount. 

Absorption. Oil absorption is another process used for recovery of LPG and natural gas Hquids from natural gas. Recovery is enhanced by loweriag the absorption temperature to —45°C and by keeping the molecular weight of the absorption oil down to 100. Heat used to separate the product from the absorption oil contributes to the cost of recovery. Therefore, this process has become less competitive as the cost of energy has iacreased. A simplified flow diagram of a typical oil-absorption process is shown ia Figure 2. 

Bromley and co-workers (36) have calculated the minimal energy of separation of water from seawater containing 3.45 wt % salt, at 25°C, to be 2.55 kj/(kg fresh water) for the case of 2ero fresh water recovery (infinitesimal concentration change) and 2.91 kj/(kg fresh water) for the case of 25% fresh water recovery. is, however, severalfold smaller than the energy necessary for water desalination ia practice. 

This paper introduces the Twin-Interchanging Fluidised Bed Incinerator (TIF) from EBARA Corp. of Japan, and describes a combustion test carried out by the company in collaboration with the Plastic Waste Management Institute, on waste plastic separated from municipal refuse, verifying the level of non-polluting combustion and high-efliciency energy recovery. The results of the test are presented, with considerations and conclusions. JAPAN... 

Recovery and Purification. All processes for the recovery and fining of maleic anhydride must deal with the efficient separation maleic anhydride from the large amount of water produced in the reaction process. Recovery systems- can be separated into two general categories aqueous-and nonaqueous-based absorption systems. Solvent-based systems have a higher recovery of maleic anhydride and arc more energy efficient than water-based systems. 

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