Mitsubishi Heavy Industries Limited

Takeshi Amari

Hiroshi Nagai

Atsuhiro Yukumoto

Wataru Matsubara

Shinya Tachibana

Katsuhiko Shinoda

Yuji Kaihara

Shizuo Yasuda

Hirotoshi Horizoe

Yoshimasa Kawami

Toshiya Akiba

Yasumasa Matsukawa

A biomass gasification gas purification system has a dust removal apparatus for filtering soot and dust from biomass gasification gas (including tar component) obtained through the gasification of the biomass using a biomass gasification furnace, a desulfurization apparatus for removing sulfur oxide component in the filtered biomass gasification gas, first to third pre-reformation reactors that provide pre-reforming catalyst for reforming the tar component in the biomass gasification gas after desulfurization, and first and second coolers that are interposed between the first to third pre-reformation reactors, and for cooling the reformed gas.

Biomass gasification gas purification system and method, and methanol production system and method

A biomass gasification gas purification system includes a dust collector for removing dust in biomass gasification gas (containing tar components) acquired by gasifying biomass by a biomass gasification furnace, a desulfurizer for removing sulfur oxide components in the dust-removed biomass gasification gas, a pre-reforming reactor for reforming tar components in the desulfurized biomass gasification gas, a steam feed unit for feeding steam to an upstream side of the pre-reforming reactor, and a natural-gas feed unit for feeding natural gas on an upstream side of the desulfurizer.

Biomass gasification gas purification system and method and methanol production system and method

This invention provides a method for reclaiming oil from waste plastic in such a way that thermosetting resins and solid foreign matter in the plastic will not pose a problem. This method greatly reduces the burden of presorting the garbage or industrial waste. To achieve this objective when oil is to be reclaimed from a waste plastic containing chlorine compounds, such as vinyl chloride, the plastic must first be stripped of chlorine. Prior to pyrolysis, while being conveyed forward in a continuous stream, the plastic is mixed with heated sand and/or an additive agent to raise its temperature to 250-350&deg; C. This creates a product which is comprised of a mixture of sand and substantially dechlorinated plastic. The product is mixed with heated sand to heat it directly to a temperature of 350-500&deg; C. It is maintained at this temperature until pyrolysis occurs. In order to obtain high-quality oil with a low boiling point, a first gas/liquid separation process separates the product obtained from the aforesaid pyrolysis into liquid high-boiling point oil, gaseous low-boiling point oil and low molecular-weight gases, and recirculates the liquid high-boiling point oil to the pyrolysis process, and a second gas/liquid separation process separates the gaseous low-boiling point oil and low molecular-weight gases into liquid low-boiling point oil and low molecular-weight gases. The first and second gas/liquid separation process are connected in sequence.

Method and apparatus for reclaiming oil from waste plastic

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Tokyo, Japan

Takeshi Amari