The Construction and Application Study of OPLC Supervisory Control System for Biomass Conversion Equipment

• Main Authors: Shyr-Ding Lin, 林石定
• Other Authors: 王順源
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/8r2d2n

碩士 === 國立臺北科技大學 === 新能源電控產業碩士專班 === 101 === The process of using lignocelluloses to produce the second–generation biomass ethanol fuel comprises steam explosion, saccharification, separation and purification, and fermentation. Steam explosion and separation and purification are key technologies for converting and using biomass. To produce cellulosic ethanol fuel, it is critical to develop efficient, convenient steam explosion and separation and purification technologies that include electrical, instrument, and supervisory control modes. Based on the requirements for operating steam explosion and separation and purification systems, the researcher planned, designed, and constructed the hardware for an electrical, instrument, and operator panel logic controller (OPLC) supervisory control system, and system-software control strategies. The research involved a mixture that contained xylooligosaccharides, which were produced by treating Napier grass using steam explosion. The objective of this study was to produce a xylooligosaccharide mixture that contained no fermentation inhibitor by using separation and purification equipment. A membrane filtration technology was used to separate the fermentation inhibitors from the steam explosion liquor, yielding a purified xylooligosaccharide mixture that can be used in biotechnological and biomedical applications. The accuracy and relevance of parametric conditions for steam explosion and separation and purification systems were explored from the perspective of practical hardware and software planning and design. A programmable controller and human machine interface apparatus were integrated in a single OPLC hardware unit to instantly acquire the critical control parameters and relevant data during system operation; the system facilitates the steam explosion and membrane separation and purification treatments of the constructed high-performance OPLC supervisory control system, and contributes to the mass production equipment of concentration systems.