This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory
本文較全面、系統地綜述了國內外生物質
熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能量(發
熱量)和c 、 h 、 n元素含量,根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速
熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加
熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加
熱的tg和dtg實驗,根據實驗數據和
阿倫
尼烏斯公式建立了生物質
熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學參數進行了求解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的
熱解動力學模型,為科學確定反應器的閃速
熱解工作溫度范圍及
熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全
熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳
熱學理論對生物質傳
熱過程及充分
熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分
熱解溫度的時間( t ) ,得出了理論推導的充分
熱解時間與最大產油率的
熱解時間相一致的結果,為閃速
熱解反應器固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了轉錐式閃速
熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速
熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
President bush receives a hero ' s welcome today in albania. enthusiastic crowds greeted the president during his brief visit. it ' s the first time a us president has visited the balkan country
布希總統在
阿爾巴
尼亞受到了英雄般的禮遇。
熱情的民眾在這次布希的短暫訪問中紛紛向總統致意。這是歷史上第一次有美國總統訪問巴爾干國家。
He had struck up an acquaintance too, with a lady living in a boulevard, whom he used to visit in the evening. he led the mazurka at the arharovs balls, talked to field - marshal kamensky about the war, and used familiar forms of address to a colonel of forty, to whom he had been introduced by denisov
他在
阿爾哈羅夫家裡舉辦的舞會上指揮馬祖爾卡舞,和卡緬斯基元帥談及戰事,他常到英國俱樂部去,與傑
尼索夫給他介紹的那個四十歲的上校交朋友,親
熱地以「你」相稱。
Benitez also spoke of his respect for rival arsene wenger, who ' ll bring his arsenal side to anfield for the third time this season on saturday
本
尼特斯同時也表達對
阿森納主教練
阿瑟-旺
熱的尊重,周六將是本賽季第三次在安菲爾德迎戰他的
阿森納
We ' d love to hear what arsene wenger makes of those sublime comments, personally i thought that they were top class and showed mourinho has a quick mind to match the very best
我們非常樂意聽到
阿爾森-旺
熱對這些精彩點評如何回應,個人來講我認為此番講話實屬頂級同時顯示了穆里
尼奧反應過人與其最佳名號相稱。
Arnold schwarzenegger, governor of california and hollywood superstar of action movies, arrived in beijing on november 14, 2005 amid the fervent expectation of thousands of chinese fans
美國加利福
尼亞州州長、好萊塢動作電影巨星
阿諾德?施瓦辛格2005年11月14日在成千上萬的中國影迷的
熱切期盼中抵達北京。
Standard test method for arrhenius kinetic constants for thermally unstable materials
熱不穩定材料的阿侖尼烏斯動態恆量的標準試驗方法