Annual Report on the Environment and the Sound Material-Cycle Society in Japan 2007 Page: 81
132 p. : col. ill.View a full description of this text.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
formed products in a pretreatment process. The products are then put into a pressurizing two-stage gasification furnace (EUP
system) involving the low and high temperature stages where they are thermally decomposed into hydrogen gas and carbon
monoxide gas. The gases generated as a result are put into ammonia production equipment where they are synthesized with
nitrogen in the air to make ammonia. With this technology, waste plastics can be recycled into ammonia of the same quality as the
conventional product produced from naphtha and other substances used for such materials as nylon. (Fig. 2-30)
A technology to make oils from waste plastics has also been put into practical use. Specifically, waste plastics are separated from
foreign matter in a pretreatment process and then put in a recycled oil production apparatus where the plastics go through a
demineralization process, a thermal decomposition process, and a oil production process into hydrocarbon oils (heavy, middle-
weight, and light oils) as recycled commercial goods. For the uses of those hydrocarbon oils, light oils are accepted by oil refineries
as petrochemical materials, and middle-weight and heavy oils are used as fuels for power generation.
Introducing these technologies required solving a number of difficult technical issues, such as the removal of chloride in waste
plastics and forming processes.
b) Recycling end-of-life vehicles
The automobile industry, which is also called a comprehensive industry, produces automobiles using various materials such as
metals, glass, and plastics. End-of-life vehicles have conventionally been recycled or disposed of by companies specializing in
dismantling or crushing. Nowadays they are recycled under the Law for the Recycling of End-of-Life Vehicles (End-of-Life
Vehicle Recycling Law) with specified targets for reusing resources from shredder dust at 70% or higher, and airbags at 85% or
Fig. 2-31 Recycling aluminum wheelsKecovermg aiuninumn wheels
Source: Nissan Motor Co., Ltd.Melting
Fig. 2-32 Technology for carbonizing automobile shredder residue
ASR
(automob
shredder resi
yard7- Steam turbine
power generator
Combustion Waste-heat boiler
furnace
ide drum. Desuperheater
Carrying Thermal 4I
bile conveyor decomposition
idue) drum
Cooling screw
High-temperature
air heater
Equipment to separate thermally Apparatus to treat fly ash
decomposelid and demineralization residuer
Bag filte
Ventilation
Attract tower
Attracting fanThermal Recovered
decomposition metals
Carbon (material and fuel for electric furnace)4 Carrying out
Source: Mitsui Engineering & Shipbuilding Co., Ltd.
81
Upcoming Pages
Here’s what’s next.
Search Inside
This text can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Text.
Japan. Kankyōsho. Annual Report on the Environment and the Sound Material-Cycle Society in Japan 2007, text, 2007; Tokyo, Japan. (https://digital.library.unt.edu/ark:/67531/metadc11843/m1/83/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .