The present research examined the technological trends in optimizing the gasification of waste. Generally, when the percentage of impurities in waste is high, the energy density is low. High-temperature and high-pressure steam is difficult to obtain during energy recovery in incineration. Therefore, the energy recovery rate is low. However, if reaction conditions were optimized in gasification technology, it would be possible to produce synthetic gas with a high percentage of CO and H2. With regard to synthetic gas, there are many different types of energy recovery (steam turbines, gas turbines, gas engines) other than incineration, and it is possible to improve the recovery ratio through gas cleaning. Technologies that have the potential to optimize gasification in each phase were studied. With regard to domestic industry, optimization technology should be applied when planning and operating waste gasification.

Abstract
 I. 서 론
 II. 고찰 범위 및 내용
 III. 가스화 요소기술
  1. 가스화
  2. 가스정제
 IV. 에너지 회수와 적용 사례
  1. 에너지 회수 및 성능지표
  2. 에너지 회수 사례
 V. 결 론
 References

• 박상우(저탄소자원순환연구소, 충남도립청양대학 환경보건과) | Sang-Woo Park Corresponding author