Проблема депарафинизаиии

Проблема заключалась в том, чтобы выделить парафинсодержащие компоненты. Экспериментальные работы показали, что если бы из калифорнийской нефти стали получать смазочные масла с высоким содержанием парафина, то можно было бы использовать низкосортную нефть для обеспечения необходимого уровня добычи. В связи с этим появилась проблема депарафинизаиии. Именно применение пропана в качестве депарафинизирующего агента позволяет наладить производство масел нового типа из калифорнийской нефти.

Дж. Рэмстайн, предприниматель из Детройта, недавно сделал небольшой электрический двигатель, работающий от солнечных лучей. Двигатель работает все время, пока на светочувствительную поверхность падает солнечный свет. Батарея из 20 соединенных вместе небольших светочувствительных дисков, генерирующих электроэнергию, подключена непосредственно к небольшому мотору постоянного тока. Двигатель делает большое число оборотов, причем никакие другие источники энергии для его питания не используются. Пока этот двигатель не имеет практического применения, поскольку его мощность не очень высокая. Но с научной точки зрения воплощенный в новом двигателе принцип представляет большую ценность, поскольку до этого проблема использования солнечной энергии почти не исследовалась.

Несмотря на то что за последние несколько лет астрономы наблюдали с помощью телескопов десятки комет и в ближайшем будущем ожидается появление еще большего числа таких же ярких комет, невозможно предсказать, когда появится настолько яркая комета, чтобы ее можно было наблюдать невооруженным глазом. Можно ожидать появления «по крайней мере одной яркой кометы в ближайшие 50 лет, но никто не может сказать, появится ли она через неделю или в будущем году или не появится в ближайшие десять лет». Так считает доктор Р. Эйткен, директор ЛикскоЙ обсерватории при Калифорнийском университете. За все XIX столетие, добавляет он, «появилось пять комет высшей яркости и еще по крайней мере шесть достаточно ярких». Одной из них была комета Галлея, пролетевшая вблизи Земли в i 835 г. Свой следующий визит она нанесла в 1910 г. Астрономы считают, что эта комета появится вновь приблизительно в 1985 г.

 

 

 

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