KR102026884B1 - 질소 및 탄화수소를 포함하는 공급 원료로부터 고순도 질소 및 선택적으로 고순도 탄화수소를 생산하기 위한 순환 방법 - Google Patents
질소 및 탄화수소를 포함하는 공급 원료로부터 고순도 질소 및 선택적으로 고순도 탄화수소를 생산하기 위한 순환 방법 Download PDFInfo
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- KR102026884B1 KR102026884B1 KR1020157003444A KR20157003444A KR102026884B1 KR 102026884 B1 KR102026884 B1 KR 102026884B1 KR 1020157003444 A KR1020157003444 A KR 1020157003444A KR 20157003444 A KR20157003444 A KR 20157003444A KR 102026884 B1 KR102026884 B1 KR 102026884B1
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- Prior art keywords
- nitrogen
- mpa
- adsorption
- purity
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- NOSIKKRVQUQXEJ-UHFFFAOYSA-H tricopper;benzene-1,3,5-tricarboxylate Chemical compound [Cu+2].[Cu+2].[Cu+2].[O-]C(=O)C1=CC(C([O-])=O)=CC(C([O-])=O)=C1.[O-]C(=O)C1=CC(C([O-])=O)=CC(C([O-])=O)=C1 NOSIKKRVQUQXEJ-UHFFFAOYSA-H 0.000 description 1
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Abstract
Description
도 2는 MIL-100(Fe)상의 50℃에서 질소 및 프로필렌에 대한 흡착 등온선 사이의 비교를 나타낸다.
도 3은 본 발명에 따른 순환 방법 A)의 단계들을 도식으로 나타낸다.
도 4는 4개의 컬럼을 가진 연속 작업에 대한 순환 방법 A)를 도식으로 나타낸다.
도 5는 본 발명에 따른 방법 B)의 단계들을 도식으로 나타낸다.
도 6은 3개의 컬럼을 가진 연속 작업에 대한 순환 방법 B)를 도식으로 나타낸다.
도 7은 실시예 1(모의 실험)의 조건 하에서 또는 실시예 2(시험 공장)의 조건 하에서 실린더 형태(배치 1) 또는 비드 형태(배치 2)에서, 50℃ 또는 70℃에서 압력(압력 (bar abs.))의 함수로 MIL-100(Fe)("C3H6 (mol/kg)")의 흡착 용량을 나타낸다.
도 8은 MIL-125_NH2상의 70℃에서 질소 및 프로필렌에 대한 흡착 등온선 사이의 비교를 나타낸다.
도 9는UiO-66(Zr)상의 70℃에서 질소 및 프로필렌에 대한 흡착 등온선 사이의 비교를 나타낸다.
"Adsor." | 흡착 단계 |
"CoDep" 또는 "CocD" 또는 "D" | 병류(Cocurrentwise) 감압 단계 |
"Rinse" | 재활용 단계(세정) |
"Blowdown" 또는 "Blowd" 또는 "B" | 역류(countercurrentwise) 감압 단계(블로우다운) |
"Purge" | 역류(countercurrentwise) 정화 단계 |
"Press." 또는 "P" | 역류(countercurrentwise) 재가압 단계 |
"N2 product" | 회수된 고순도 질소 |
"C3H6 product" | 회수된 고순도 프로필렌 |
"C3H6 waste" | 회수되지 않은 프로필렌 분획 |
흡착층의 길이(m) | 2 |
흡착층의 지름(m) | 0.026 |
흡착층의 공극률 | 0.41 |
흡착제 | MIL-100(Fe) |
흡착제의 형태 | 실린더 |
실린더의 반경(m) | 1.5×10-3 |
실린더의 길이(m) | 3.85×10-3 |
입자 밀도(kg/m3) | 888 |
실린더의 공극률 | 0.34 |
결정 지름 | 1.4×10-3 |
질량의 축방향 분산 계수(m2/s) | 5.5×10-4 |
열의 축방향 분산 계수(W/m/K) | 0.50 |
필름의 질량 전달 계수(m/s) | 2.3×10-2 |
기체와 입자 사이의 필름의 열 전달을 위한 계수(W/m2/K) | 85 |
기체와 벽 사이의 필름의 열 전달을 위한 계수(W/m2/K) | 60 |
전체 열 전달 계수(W/m2/K) | 40 |
대공극 확산도(m2/s) | C3H6: 3.04×10-6 N2: 3.07×10-3 |
결정 확산도(m2/s) | C3H6: 1.18×10-10 N2: 1.13×10-9 |
단계들의 기간(s) | ||||
흡착 | 병류(Cocurrentwise) 감압 | 역류(Countercurrentwise) 감압 (블로우다운) |
정화 | 재가압 |
300 | 100 | 250 | 500 | 50 |
P (bar abs.) | P (bar abs.) | P (bar abs.) | 공급 T (℃) | |
2.5 | 1.0 | 0.4 | 70 | |
흡착 유량(SLPM) | 정화 유량(SLPM) | |||
4.0 | 0.24 | |||
회수된 질소 | 프로필렌이 농축된 분획 | |||
순도 (%) | 회수도 (%) | 생산성 (molN2/kgads/h) | 순도 (%) | |
99.9 | 81.5 | 2.74 | 67.3 | |
에너지 소비 | ||||
19.7 W (3.2 Wh/mol N2) |
단계들의 기간(s) | ||||||
흡착 | 병류(Cocurrentwise) 감압 | 세정 | 역류(Countercurrentwise) 감압 (블로우다운) | 정화 | 재가압 | |
800 | 100 | 600 | 250 | 600 | 50 | |
P (bar abs.) | P (bar abs.) | P (bar abs.) | 공급 T (℃) | |||
2.5 | 1.0 | 0.1 | 70 | |||
흡착 유량(SLPM) | 세정 유량(SLPM) | 정화 유량(SLPM) | ||||
4.0 | 1.3 | 0.17 | ||||
회수된 질소 | 회수된 프로필렌 | |||||
순도 (%) | 회수도 (%) | 생산성 (molN2/kgads/h) | 순도 (%) | 회수도 (%) | 생산성 (molN2/kgads/h) | |
99.9 | 97.4 | 4.33 | 97.9 | 87.6 | 1.67 | |
에너지 소비 | ||||||
36.6 W (5.0 Wh/molN2, 13.0 Wh/molC3H6) |
2) 실시예 2: 시험(pilot) 규모에서의 실험
압력 | 최소 | 일반 범위 | 최대 |
흡착 | 1 bar abs. | 1-20 bar abs. | 80 bar abs. |
탈착 | 0.02 bar abs. | 0.1 bar abs. | 5 bar abs. |
온도 | 50℃ | |||
흡착 압력 (bar abs.) | 1.25 | |||
흡착 온도 (K) | 323 | |||
컬럼의 주입구에서의 평균 체적 유량(Sl.hr) | 80 | |||
공급 원료에서 프로필렌 (%) | 100 | |||
컬럼의 주입구에서의 몰 유량(mol.s) | 9.92×10-4 | |||
흡착층에서 흡착제의 무게(kg) | 0.331 | |||
흡착층의 부피(m3) | 1.067×10-3 | |||
흡착제의 진밀도(true density)(kg/m3) | 888 | |||
흡착층의 공극률(ε) | 0.65 | |||
지름(m) | 0.02606 | |||
흡착층의 높이 (m) | 2 | |||
센서들의 위치 | T | 하부 | 중간부 | 상부 |
h (m) | 0.10 | 1.00 | 1.80 | |
평형에서 흡착된 | 프로필렌의 양 (mol) | 1.418 |
||
동적 용량 (mol/kg) | 4.290 |
온도 | 70℃ | |||
흡착 압력 1 (bar abs.) | 1.28 | |||
흡착 압력 2 (bar abs.) | 2.40 | |||
흡착 온도 (K) | 343 | |||
컬럼의 주입구에서의 평균 체적 유량(Sl.hr) | 81.3 | |||
공급 원료에서 프로필렌 (%) | 100 | |||
컬럼의 주입구에서의 몰 유량(mol.s) | 1.01×10-3 | |||
흡착층에서 흡착제의 무게(kg) | 0.331 | |||
흡착층의 부피(m3) | 1.067×10-3 | |||
흡착제의 진밀도(true density)(kg/m3) | 888 | |||
흡착층의 공극률(ε) | 0.65 | |||
지름(m) | 0.02606 | |||
흡착층의 높이 (m) | 2 | |||
센서들의 위치 | T | 하부 | 중간부 | 상부 |
h (m) | 0.10 | 1.00 | 1.80 | |
평형 1 | 흡착된 프로필렌의 양 (mol) | 1.276 | ||
동적 용량 (mol/kg) | 3.862 | |||
평형 2 | 흡착된 프로필렌의 양 (mol) | 0.504 | ||
동적 용량 (mol/kg) | 5.387 |
단위 | 모의 실험 | 시험 공장 | |
흡착 시간 | s | 1180 | 1180 |
흡착층의 길이 | m | 1.99 | 1.99 |
흡착층의 지름 | m | 0.026 | 0.026 |
공급 원료의 유량 | mol/h | 2.68 | 2.68 |
정화의 유량 | SLPM | 0.13 | 0.13 |
흡착제 | MIL-100(Fe) 실린더 | MIL-100(Fe) 비드 | |
흡착제의 지름 | m | 0.0015 | 0.0025 |
흡착제의 무게 | kg | 0.560 | 0.330 |
흡착제의 밀도 | kg/m3 | 888 | 888 |
흡착층의 공극률 | 0.41 | 0.65 |
MIL-125(Ti)_NH2 | UiO-66(Zr) | |
흡착제의 형태 | 분말 | 분말 |
공극률 | 0.59 cc/g | 0.8 cc/g |
BET 비표면적 | 1450 m2/g | 1350 m2/g |
Claims (17)
- 질소 및 탄화수소를 포함하는 공급 원료(1)로부터, 한편으로는, 순도 ≥ 95 mol%를 갖는 질소 분획(2), 및 다른 한편으로는, 탄화수소가 농축된 분획(3)의 생산을 위한 순환 방법으로, 상기 탄화수소는 프로필렌이며, 각 순환은 다음 단계들:
i) 상기 공급 원료(1)를 공급 단부 및 생성 단부를 구비하고 다공성 하이브리드 고체들로부터 선택된 고체 흡착제를 포함하는 흡착층과 접촉시키는 단계로, 상기 접촉 작업은 압력 P1 ≥ 0.1 MPa 및 온도 T1 ≥ 0℃ 하에서 수행되는 것인 단계;
ii) 흡착층의 생성 단부에서 순도 ≥ 95 mol%를 갖는 제 1 질소 분획(2)을 회수하는 단계;
iii) 흡착층의 생성 단부에서 순도 ≥ 95 mol%를 갖는 제 2 질소 분획(2)을 회수하기 위해 흡착층을 압력 P2 < P1 (여기서 P2 ≥ 0.1 MPa)에 이르기까지 병류(cocurrentwise) 감압하는 단계;
iv) 흡착층으로부터 탄화수소를 탈착하고 흡착층의 공급 단부에서 탄화수소가 농축된 제 1 분획(3)을 회수하기 위해 흡착층을 압력 P3 < P2 (여기서 0.05 MPa ≤ P3 ≤0.006 MPa)에 이르기까지 역류(countercurrentwise) 감압하는 단계;
v) 흡착층의 공급 단부에서 탄화수소가 농축된 제 2 분획(3)을 회수하기 위하여 압력 P3 하에서 순도 ≥ 95 mol%를 갖는 질소 분획(2)을 사용하여 흡착층을 역류(countercurrentwise) 정화하는 단계;
vi) 순도 ≥ 95 mol%를 갖는 질소(2)를 사용하여 또는 공급 원료(1)와 함께 흡착층을 압력 P1까지 역류(countercurrentwise) 재가압하는 단계;를 포함하며,
여기서 상기 흡착제는 탄화수소에 대하여 50℃에서의 0.25 MPa 내지 0.05 MPa에서 적어도 3 mmol/g의 동적 용량 및 질소에 대하여 50℃에서의 0.25 MPa 내지 0.05 MPa에서 0.50 mmol/g 이하의 동적 용량을 가지며,
감압 단계 iv)를 수행하기 전, 탄화수소로 흡착층을 포화시키고 단계 iv)의 종결시에 순도 ≥ 90 mol%을 갖는 탄화수소가 농축된 분획(2)을 회수하기 위하여, 탄화수소가 농축된 제 1 분획(3)의 일부가 공급 단부를 통해 흡착층에서 재활용되는 것을 특징으로 하는 순환 방법. - 제 1 항에 있어서,
단계 i)의 공급 원료(1)를 흡착층과 접촉시키는 단계는 0.1 MPa 내지 1 MPa, 의 압력 P1 및 0℃ 내지 100℃의 온도에서 수행되는 것을 특징으로 하는 방법. - 제 1 항에 있어서,
병류(cocurrentwise) 감압 단계 iii)은 0.2 MPa 내지 0.1 MPa의 압력 P2에서 수행되는 것을 특징으로 하는 방법. - 제 1 항에 있어서,
감압 단계 iv)는 진공 하에서 수행되는 것을 특징으로 하는 방법. - 제 1 항에 있어서,
감압 단계 iv)는 0.05 MPa 내지 0.01 MPa의 압력 P3에서 수행되는 것을 특징으로 하는 방법. - 제 1 항에 있어서,
감압 단계 iv)가 0.05 MPa 내지 0.006 MPa의 압력 P3 하에서 수행되는 것을 특징으로 하는 방법. - 제 1 항에 있어서,
순도 ≥ 95 mol%를 갖는 질소의 회수도가 80% 이상인 것을 특징으로 하는 방법. - 제 1 항에 있어서,
순도 ≥ 90 mol%를 갖는 탄화수소의 회수도가 80% 이상인 것을 특징으로 하는 방법. - 제 1 항에 있어서,
공급 원료(1)가 적어도 30 mol%의 질소 및 최대 70 mol%의 탄화수소를 포함하는 것을 특징으로 하는 방법. - 제 1 항에 있어서,
공급 원료(1)가 폴리프로필렌의 생산을 위한 공장으로부터 유래한 것을 특징으로 하는 방법. - 삭제
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KR20150087178A (ko) | 2015-07-29 |
EP2869908B1 (fr) | 2018-09-12 |
US9844750B2 (en) | 2017-12-19 |
PT2869908T (pt) | 2018-12-18 |
EP2869908A1 (fr) | 2015-05-13 |
WO2014009611A1 (fr) | 2014-01-16 |
US20150258489A1 (en) | 2015-09-17 |
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