JP2024503769A - 炭化水素とエネルギーのクリーンな生産のための多相連続垂直反応器、及びそこで実行される熱化学的方法 - Google Patents
炭化水素とエネルギーのクリーンな生産のための多相連続垂直反応器、及びそこで実行される熱化学的方法 Download PDFInfo
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Abstract
Description
ダウンフロー反応器として機能する多相連続垂直反応器は、垂直容器(10)、垂直シャフト(8)、複数のチャンバ、すなわち蒸発チャンバ(2)、熱分解チャンバ(5)、ガス化燃焼チャンバ(6)で構成されている。
各チャンバはそれぞれ熱分解(thermolysis)の段階である。これらのチャンバは、真空下で動作するように、密閉シールされたエアロック型のゲート(9)によって、互いに接続される(図2及び3参照)。
このプロセスは、任意のタイプの湿潤バイオマスに適用される。好ましくは微細藻類バイオマス、廃バイオマス、又は、都市、農村および産業由来の液体基質中のスラッジ及び/又は固形物に存在するそれらの混合物に適用され、50%HBH から95%HBHの水分含有量を有するものがより好ましい。
50%HBHを超え、最大95%HBHのスラッジ又は湿潤微細藻類バイオマスの供給は、7~15MPaの高圧で行われ、それを室温から50~200℃のプロセス温度にさせる。
・原料とエネルギーのバランス
原料とエネルギーのバランスから、1.5TPDの能力における、乾燥及び焙焼プロセス、熱分解及びガス化の各々の入出力条件を計算する。表1は、プロセスとプラントサイズごとの原料とエネルギーのバランスをまとめたものである。
表1のバランスで得られたデータから、1.5TPDの処理能力の場合、表2に示すように、熱処理で期待される生成物を用いて、微細藻類基質を乾燥させるために必要なエネルギー需要と供給を計算することができる。
試作プラントの結果に基づくと、微細藻類基質の熱処理プロセスは、以下の表4に示す仕様範囲内にある。情報源は、仕様値が取得されたデータベースを参照しており、このレポートの付録として提示されている。
バイオソリッドは、廃水処理(WWTP:wastewater treatment)からの有機スラッジの安定化プロセス後に発生する生成物である。安定化は、その病原性レベル、その発酵力、および媒介性疾患を発生させる能力を低下させるために行われる。安定化されたスラッジ又はバイオソリッドは、毒物又は危険物として分類できないが、都市廃棄物と同程度と見なされ、処理が必要な汚染物質が含まれている。
Brett Digman, H. S.-S. (30/01/2020). American Institute of Chemical Engineers.
URL: https://aiche.onIineIibrary.wiIey.com/doi/abs/10.1002/ep.10336
John J. Milledge 1, B. S. (31/01/2020). Energies Journal.
URL: www.mdpi.com/journal/energies:
John J. Milledge, S. H. (31/01/2020). SpringerLink.
URL: https://link.springer.com/article/10.1007/s11157-014-9339-1
Schmidt, H.-P. (2012). 55 Uses of Bio char. Ithakajournal 1, 286 - 289.
Claims (15)
- 高湿潤のバイオマスから炭化水素とエネルギーを生成するための多相連続垂直反応器であって、
内部が複数に区切られ、上から下に、蒸発チャンバ(2)、熱分解チャンバ(5)、ガス化燃焼チャンバ(6)を有する垂直容器(10)を備え、
前記蒸発チャンバ(2)は、真空中で連続段階的に瞬時蒸発を行うセルフクリーニングローター(11)を含む断熱膨張弁(3)を有する、ことを特徴とする多相連続垂直反応器。 - 前記蒸発チャンバ(2)と前記熱分解チャンバ(5)との間に焙焼チャンバ(4)を有する、ことを特徴とする請求項1に記載の反応器。
- 前記チャンバ(2、4、5、6)の壁に、伝導面と放射面により間接加熱を行う内側ジャケット(15)を有する、ことを特徴とする請求項1に記載の反応器。
- 前記蒸発チャンバ(2)および前記熱分解チャンバ(5)が、処理中の原料の粒子サイズを小さくするための粉砕体を有する、ことを特徴とする請求項1に記載の反応器。
- 前記熱分解チャンバ(5)は、ガスを凝縮触媒システム(7)に導く接続ダクト(26)を有する、ことを特徴とする請求項1に記載の反応器。
- 前記蒸発チャンバ(2)から、蒸気インジェクタ(21)が提供される前記ガス化チャンバ(6)に通じるガス出口ダクト(20)を備える、ことを特徴とする請求項1に記載の反応器。
- 正流型であり、その内部に触媒材料が導入され、前記蒸気と直接接触し、ウォータージャケットによって冷却される、凝縮触媒システム(7)を備える、ことを特徴とする請求項1に記載の反応器
- チャンバ間に、油圧及び/又は空圧作動により動作するハーメチックロックタイプの閉鎖ゲート(9)を備える、ことを特徴とする請求項1に記載の反応器。
- 前記ガス化燃焼チャンバ(6)は、灰および他の燃焼残留物を除去するウォームスクリュー(13)を有する、ことを特徴とする請求項1に記載の反応器
- 前記ガス化燃焼チャンバ(6)は、耐熱及び断熱材料で裏打ちされている、ことを特徴とする請求項1に記載の反応器。
- 連続垂直多相反応器内で湿潤バイオマスから炭化水素及びエネルギーを得る方法であって、以下の段階を含む:
段階a).断熱膨張ノズル(3)を介して、7MPaを超える圧力と80℃を超える温度から、15kPaまでの真空圧、又は80%真空及び真空温度で15kPaまでの真空圧と同等、又は80%真空及び60℃を下回る蒸発温度の温度と同等、へ移行させることにより、圧力と温度を変化させて蒸発チャンバ(2)内で湿潤バイオマスを乾燥させ、
段階b).この温度を20%低下させ、揮発性物質を放出するために、前記乾燥した原料を、焙焼チャンバ(4)及び熱分解チャンバ(5)において、好ましくは20%から80%までの真空状態で550℃まで加熱して、焙焼及び熱分解し、
段階c).化学量論比未満の量の燃焼剤を供給して、不完全燃焼により、ガス化燃焼チャンバ(6)において、基質をガス化燃焼する、
ここで、段階が次々と継続的に続き、新しい湿潤バイオマスが入り、変換される工程を中断する必要はないとする、方法。 - 前記湿潤バイオマスは、7MPaよりも高い高圧、95%までの湿度、および温度200℃までの予熱で反応器に入れられる、ことを特徴とする請求項11に記載の方法。
- 段階a)は、高圧ポンプ回路および拡張により真空下の連続段階で瞬時蒸発を行うために、湿潤バイオマスを数回送り返すことにより、必要な湿度が得られるまで繰り返される、ことを特徴とする請求項11に記載の方法。
- 段階b)において、前記熱分解チャンバ(5)で得られた揮発性物質ガスが、第二鉄系触媒と接触する凝縮触媒システム(7)に達し、温度を60℃未満に下げると、バイオオイルから液体の形で沈殿する、ことを特徴とする請求項11に記載の方法。
- 段階c)において、前記熱分解チャンバ(5)で生成された合成ガス、及び/又は凝縮触媒システム(7)で生成されたバイオオイルで、燃焼が起こる、ことを特徴とする請求項11に記載の方法。
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