Nitrogen gas for the synthesis process comes from the atmosphere, while most of the hydrogen needed is extracted from natural gas sources. Once ammonia gas has been formed, it is liquefied by cooling it with water. Nitrogen and hydrogen that have not yet been converted to ammonia are recycled through the system. In addition to Haber-Bosch synthesis, other industrial sources of ammonia also exist;
-- TERMINATOR 2 SCRIPT --
1 ext. city street - day 1
Downtown L.A. Noon on a hot summer day. On an EXTREME LONG LENS the
lunchtime crowd stacks up into a wall of humanity. In SLOW MOTION they
move in herds among the glittering rows of cars jammed bumper to bumper.
Heat ripples distort the torrent of faces. The image is surreal,
dreamy... and like a dream it begins very slowly to
dissolve to:
2 e
Downtown L.A. Noon on a hot summer day. On an EXTREME LONG LENS the lunchtime crowd stacks up into a wall of humanity. In SLOW MOTION they move in herds among the glittering rows of cars jammed bumper to bumper. Heat ripples distort the torrent of faces. The image is surreal, dreamy... and like a dream it begins very slowly to...
DISSOLVE TO:
EXT. CITY RUINS - NIGHT
Same spot as the last shot, bu
개인 정보 & 성향 에 관한 설문입니다
1.귀하의 성별은? ① 남 ② 여
2 귀하의 나이는?
① 10대 ② 20~24세 ③ 25~29세 ④ 30~34세 ⑤ 35~39세 ⑥ 40세 이상
3 귀하의 직업은?
① 중, 고등학생 ② 대학(원)생 ③ 직장인 ④ 주부 ⑤ 기타
4. 귀하의 한달 평균 용돈은 얼마입니까?
① 10~20만원미만 ② 20~30만
1.2 공기분리장치(ASU, Air Seperation Unit)
석탄 가스화기의 산화제인 산소의 제조방법에는 공기냉각 액화분리공정(cryogenic air separation)이 상업적으로 사용되고 있다. 즉, 공기를 액화 및 정류의 물리적 과정을 통하여 산소와 질소의 비등점(boiling point, bp) 차이로 분리탑에서 분리한다. (N2 bp. -195.8℃, O2 bp.